Home \ Faculty Details \ Dr. B. Ratna Sunil
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    rburadagunta@pmu.edu.sa

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  • Dr. B. Ratna Sunil

  • Job Title :

    Associate Research Professor

  • College :

    College of Engineering


  • Department :

    Mechanical Engineering


Dr. B. Ratna Sunil is an Indian national, working as an Associate Research Professor in the department of Mechanical Engineering at PMU, KSA. Dr. Sunil has 15 years of experience in teaching and research in the fields of Materials Engineering, Manufacturing Processes and Surface Engineering.

Dr. Sunil has been listed in world top 2% scientists announced by Stanford University, USA, consecutively for four years (2020, 2021, 2022 and 2023). Dr. Sunil has published more than 125 scientific papers in international peer-reviewed journals and conference proceedings and a book titled “Surface Engineering by Friction-Assisted Processes: Methods, Materials, and Applications” available with CRC Press, USA. From the research findings, Dr. Sunil has filed 16 Indian patents among them 5 have been granted. He received several awards and recognitions, including the Sudarshan Bhat Memorial Best PhD Thesis Award from Indian Institute of Technology Madras, India, and the Bajpai-SAHA Award from the Society for Biomaterials and Artificial Organs India. He is an Associate Fellow (elected, 2017) of Andhra Pradesh Akademy of Sciences.

Dr. Sunil is eager to work with the researchers of international repute to promote research outcome at PMU in the interdisciplinary fields for the growth of science and technology. 

 

Dr. Sunil received his B.E. degree from Andhra University in Visakhapatnam, India, in 2004, M.E. degree from Osmania University, Hyderabad, India in 2007, and his Ph.D. from the Indian Institute of Technology Madras, Chennai, India, in 2014.

Books with international publishers:

  1. B. Ratna Sunil, Surface Engineering by Friction Assisted Processes, CRC Press, Taylor & Francis, New York, USA, 2019. (372 pages, $169.95 | £131.00 hardback)
  2. B. Ratna Sunil, Corrosion of Metallic Biomaterials: Testing, Analysis and Controlling, CRC Press, Taylor and Francis, USA, (Agreement completed, under preparation)

Papers in Journals/periodicals (SCI/Web of Science/SCOPUS):

  1. Akshay R. Govande, B. Ratna Sunil, Ravikumar Dumpala, Wear and corrosion behaviour of the cryogenically treated tungsten carbide coatings Surface Engineering, 2023 (Taylor & Francis, SCI, Q1)(Accepted) IF 2.45.
  2. Akshay R. Govande, Satish Tailor, B. Ratna Sunil, Ravikumar Dumpala, Effect of inert environment on the sliding wear behaviour of the HVOF sprayed WC-12Co coating, International Journal of Refractory Metals and Hard Materials, 2023 (Elsevier, SCI, Q1) (Accepted) IF 4.8.
  3. Akshay R. Govande, B. Ratna Sunil, Ravikumar Dumpala, Tribological characteristics of WC-12Co coatings sliding against SiC and Si3N4 counter balls, Silicon, 2023, 1-10 (Springer, SCI, Q2) IF 2.94
  4. Akshay R. Govande, B. Ratna Sunil, Ravikumar Dumpala Reciprocating sliding wear behaviour of the heat-treated WC-12Co coatings, Part J: Journal of Engineering Tribology, 237(4) (2023) 798-807 (SAGE, SCI, Q2) IF 1.8
  5. B. Venkateswarlu, R. Sunil Kumar, B. Ratna Sunil, Magnesium based alloys and composites: Revolutionized biodegradable temporary implants and strategies to enhance their performance, Materialia, 2023, 27, 101680 (Elsevier, SCOPUS, Q1)
  6. B. Venkateswarlu, R. Sunil Kumar, B. Ratna Sunil, Microstructure, mechanical properties and corrosion behavior of Rare Earths (RE) containing Mg-Zn alloy for biomedical applications, Mater Today: Proc. (2023) (Elsevier, SCOPUS, Q2) (Accepted)
  7. Subrat Kumar Baral, Manjusha M. Thawre, B. Ratna Sunil, Ravikumar Dumpala, A review on developing high-performance ZE41 magnesium alloy by using bulk deformation and surface modification methods, Journal of Magnesium and Alloys, 11(3)(2023) 776-800 (Elsevier, SCI,Q1) IF 11.8.
  8. Dávid Ernst, Marek Kolencík, Martin Šebesta, Luba Durišová, Samuel Kšinan, Lenka Tomovicová, Nikola Kotlárová, Mária Kalúzová, Ivan Cerný, Gabriela Kratošová, Veronika Žitniak Curná, Jana Ivanic Porhajašová, Mária Babošová, Edmund Dobrocka, Yu Qian, Sasikumar Swamiappan, Ramakanth Illa, Shankara Gayathri Radhakrishnan, B. Ratna Sunil and Ladislav Ducsay, Significance of Phosphate Nano-Fertilizers Foliar Application: A Brief Real-Field Study of Quantitative, Physiological Parameters, and Agro-Ecological Diversity in Sunflower, Agronomy 2023, 13, 2606 (MDPI, SCI, Q1) IF 3.9
  9. Subrat Kumar Baral, Thawre Manjusha, B. Ratna Sunil, Ravikumar Dumpala, Temperature-dependent wear characteristics of ZE41 magnesium alloy under air and inert environments, Material Science and Engineering Technology, (2023) (Wiley, SCI, Q3) (Accepted) IF 1.03
  10. Manoj Kumar Elipey, Veeram Mahidhar Reddy, K. Praveen Kumar, Srinivas Reddy Muthadi, B. Ratna Sunil *, Role of processing temperature on microstructure, mechanical properties and corrosion behavior of fine grained AZ31 magnesium alloy produced by groove pressing, Material Science and Engineering Technology, (2023) (Wiley, SCI, Q3) (Accepted) IF 1.03
  11. Anchupogu Praveen, V. V. Kondaiah, Tapan K. Mahanta, Ravikumar Dumpala, B. Ratna Sunil *, Investigation on the engine parameters of a DI diesel engine using diesel and canola biodiesel-blended fuel with 1-4 dioxane additive, Journal of Mines, Metals and Fuels, (2023) (Accepted) (SCOPUS, Q4)
  12. Abhishek Chaudhary, Subrat Kumar Baral, Gaurav Tiwari, B. Ratna Sunil, Ravikumar Dumpala, Influence of Surface Finish on the Dry Sliding Wear and Electrochemical Corrosion Behaviour of 316L Stainless Steel, Journal of Mines, Metals and Fuels, 71(9) (2023) (Accepted)(SCOPUS, Q4)
  13. M. Dhevesh Kannan, Sai Chand Kundurti, B. Ranta Sunil, Ambuj Sharma, Material design for ballistic applications: A numerical analysis of surface reinforced AA6061-T6 metal matrix composite, Maerials Today Proceedings (2023) (Accepted) (Elsevier, SCOPUS, Q2)
  14. Sai Chand Kundurti, Venkat Sai Aditya Mocherla, Ambuj Sharma, B. Ratna Sunil, Sunkulp Goel, Design and Development of Novel AA7075-T6 based Armor Plate through Numerical and Experimental Approach, Journal of Mines, Metals and Fuels, 71(9) (2023) 1271-1285 (SCOPUS, Q4)
  15. Avula Suresh, V. V. Kondaiah, Ravikumar Dumpala, Ambuj Sharma, B. Ratna Sunil *, The role of aluminium content on the corrosion initiated mechanical failure of AZ series magnesium alloys, Maerials Today Proceedings (2023) (Accepted) (Elsevier, SCOPUS, Q2)
  16. Voleti Sri Sai Harsha Vardhan, Ambuj Sharma, Ravikumar Dumpala, B. Ratna Sunil *, A short review on the development of rare earths containing magnesium alloys for biomedical applications, Advances in Engineering Materials, Lecture Notes in Mechanical Engineering, (2023) 137-146 (Springer, SCOPUS, Q4)
  17. Jaiswal, A.K., Govande, A.R., Uday Venkat Kiran, K., B. Ratna Sunil, Ravikumar Dumpala, Effect of argon gas environment on high temperature sliding wear characteristics of NiCrBSi laser clad, Materials Today: Proceedings, 2023, 78, 682–687 (Elsevier, Scopus, Q2)
  18. Gurram, A., Baral, S.K., B. Ratna Sunil, Dumpala Ravikumar, Temperature dependent sliding wear behaviour of Stellite 6 alloy, Materials Today: Proceedings, 2023, 78, 514–519 B (Elsevier, SCOPUS, Q2)
  19. Ch. Pavan Satyanarayana, L. Suvarna Raju, L. Ratna Raju, D. Sreekanth, Ravikumar Dumpala, B. Ratna Sunil *, Comparative investigations on the bioactivity of surface grain refined titanium and surface oxidized titanium for biomedical implant applications, Biointerface Res. Appl. Chem. 13 (4) (2023) 318 (Web of Sci & SCOPUS, Q3)
  20. N. M. K. Sarath Kumar, G. Suresh, Ravikumar Dumpala, B. Ratna Sunil *, In vitro degradation studies on Mg-Zn-CeO2 composites for biodegradable implant applications, Biointerface. Res. Appl. Chem., (2023), (Accepted) (SCOPUS, Q3)
  21. B. Venkateswarlua, B. Ratna Sunil, R. Sunil Kumar, The role of heat treatment on the in vitro degradation and corrosion-initiated failure of the biodegradable Mg–Zn–RE alloy, Canadian metallurgical quarterly, (2023) (Accepted). (Taylor & Francis, SCI) IF 0.9
  22. K. Raghu Ram Mohan Reddy, P. Nithish Reddy, Manoj Kumar Elipey, Ravikumar Dumpala, B. Ratna Sunil *, Mechanical performance of dissimilar Al6082 aluminum and AZ91 magnesium alloy joints produced by solid-state welding, Material Science and Engineering Technology, (2023) (Revision submitted) (Wiley, SCI, Q3) IF 1.03.
  23. B. Ratna Sunil*, M. Jagannatham, Ravikumar Dumpala, Development, and characterization of calcium deficient nano-hydroxyapatite powder from fish bones for biomedical applications, Letters in Applied NanoBioScience (2023) (Accepted) (SCOPUS)
  24. B. Ratna Sunil *, K. Raghu Ram Mohan Reddy, Ravikumar Dumpala, Joint characteristics, and mechanical performance of weld joint of AZ31 and AZ91 magnesium alloys produced by solid state welding, Canadian Metallurgical Quarterly (2023) (Accepted) (Taylor & Francis, SCI) IF 0.9
  25. Ch. Pavan Satyanarayana, L. Suvarna Raju, Ravikumar Dumpala, B. Ratna Sunil *, Processing of titanium for medical implant applications: A review on strategies to enhance the bioactivity, Materials Today Communications, (2023) (Accepted) (Elsevier, SCI). IF 3.6
  26. K. Raghu Ram Mohan Reddy, Silaparasetti Srinivasa Rao, Manoj Kumar Elipey, B. Ratna Sunil *, Shot peening of AZ31 magnesium alloy: role of surface microstructure and iron diffusion on corrosion resistance, Canadian Metallurgical Quarterly (2023) (Accepted) (Taylor & Francis, SCI) IF 0.9
  27. Manoj Kumar Elipey, P. S. Kishore, B. Ratna Sunil *, AZ31-calcium deficient hydroxyapatite composites produced by friction stir processing: controlling the degradation by enhancing the biomineralization, Canadian Metallurgical Quarterly, (2023) (Accepted) (Taylor & Francis, SCI) IF 0.9
  1. M. Kolenčík, M. Urík, M. Lesňák, K Č Barabaszová, M. Bujdoš, M. Šebesta, E. Dobročka, E. Aydın, E. Duborská, D. Ernst, M. Juriga, J. Chakvavarthi, Y. Qian, H. Feng, G. Kratošová, B. Ratna Sunil, I. Ramakanth, Effect of AC/DC electrical fields on ZnO nanoparticles kinetics, Acta fytotechn zootechn, 25, 2022(4): 324–332 (SCOPUS, Q4)
  2. B. Ratna Sunil, A. Sandeep Kranthi Kiran, Seeram Ramakrishna, Surface functionalized titanium with enhanced bioactivity and antimicrobial properties through surface engineering strategies for bone implant applications, Current Opinion in Biomedical Engineering, (2022) 23:100398. (Elsevier, SCI, Q1) IF 4.16
  3. Kanumuri Singaiah, G. Ram Babu, G. Singaiah, B. Ratna Sunil, Machining behaviour of AZ91E hybrid composite reinforced with granite and fly Ash powders, Eng. Res. Express. 4  (2022) 015035 (IOP, SCOPUS & ESCI, Q3) IF 1.2
  4. Voleti Sri Sai Harsha Vardhan, Ambuj Sharma, B. Ratna Sunil *, Ravikumar Dumpala, Development Of Rare Earths Containing Magnesium Alloys For Biomedical Applications: A review, Advances in Science and Technology, 2022, 120, 35-40 (Transtech, Switzerland).
  5. Venkateswarlu Badisha, Sunil Kumar Rajulapati, B Ratna Sunil, Developing Mg based composites for degradable orthopedic implant applications: A review, Advances in Science and Technology, 2022, 120, 61-67 (Transtech, Switzerland).
  6. Chelamalasetti Pavan Satyanarayana, Lam Ratnaraju, Lam Suvarna Raju, Sreekanth Dondapati, Ravikumar Dumpala, B. Ratna Sunil *, Characterization of CP-Ti processed by micro arc oxidation for bone implant applications Advances in Science and Technology, 2022, 120, (Transtech, Switzerland).
  7. Manoj Kumar Elipey, Anchupogu Praveen, V. V. Kondaiah, Ravikumar Dumpala, B. Ratna Sunil *, Dispersion effect of Al2O3 nanoparticles in diesel and hemp biodiesel blend on the engine parameters of a diesel engine, AIP Conference proceedings, 2648, 040007 (2022) (AIP, SCOPUS, Q4)
  8. K. Uday Kiran, Ravikuamr Dumpala, B. Ratna Sunil, Friction and wear behavior of BN(h) and Ag incorporated nickel phosphorous coatings under dry reciprocating sliding conditions, Tribology - Materials, Surfaces & Interfaces, 16(1)(2022) 23-33 (Taylor & Francis, SCOPUS, Q3).
  9. Akshay R. Govande, Aayush Chandak, B. Ratna Sunil, Ravikumar Dumpala, Carbide-based thermal spray coatings: A review on performance characteristics and post-treatment, International Journal of Refractory Metals and Hard Materials 103 (2022), 105772 (Elsevier, SCI, Q1) IF 4.8
  10. Tapan K. Mahanta, Ratna Raju Lam, Yogeswar Chakrapani, Siva Irulappasamy, Ravikumar Dumpala, B. Ratna Sunil *, Machining characteristics of Al6063 composites reinforced with SiC particles, Mater Today: proc, 50(5) (2022) 2351-2354 (Elsevier, SCOPUS, Q2)
  11. Avula Suresh, T. Nancharaiah, Ravikumar Dumpala, B. Ratna Sunil *, Role of heat treatment on machining characteristics and surface roughness of AZ91 Mg alloy,  Mater Today: proc, 50(5) (2022) 2488-2492 (Elsevier, SCOPUS, Q2)
  12. M. Venkataiah, T. Anup Kumar, K. Venkata Rao, S. Anand Kumar, Ravikuam Dumpala, B. Ratna Sunil *, Investigation on the role of microstructure and temperature on tribological characteristics of fine grained ZE41 Mg alloy, Tribology - Materials, Surfaces & Interfaces 16(1) (2022) 68-75 (Taylor & Francis, SCOPUS, Q3).
  13. Hemendra Patle , B. Ratna Sunil , S. Anand Kumar , Ravikumar Dumpala, Effect of inert gas environment on the sliding wear behavior of AZ91/B4C surface composite, Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 236(9) (2022) 1880-1888 (SAGE, SCI, Q2). IF 1.81
  14. Mahenk Kumar Patanaik, Gaurav Tiwari,  Akshay R. Govande, B. Ratna Sunil, Ravikumar Dumpala, Numerical evaluation of the residual stresses in shot peening of alloy steels, Engineering Research Express 3 (2021) 045059 (IOP, SCI, Q3). IF 1.2
  15. Šebesta M., Kolencík M., B. Ratna Sunil, Illa Ramakanth, Mosnácek, J., Ingle A.P., Urík M., Field Application of ZnO and TiO2 Nanoparticles on Agricultural Plants. Agronomy 2021, 11, 2281. (MDPI, SCI, Q1)  IF 3.9
  16. Manoj Kumar Elipey, T. Sunil Kumar, Ravikumar Dumpala, B. Ratna Sunil *, Developing Mg-Zn-fish bone derived hydroxyapatite composites for biomedical applications: in vitro degradation studies, Biointerface Res. Appl. Chem. (2021), (Web of Sci & Scopus, Q3)(Accepted)
  17. Ch. Pavan Satyanarayana, Lam Ratna Raju, Ravikumar Dumpala, B. Ratna Sunil *, Producing high wettable surface for pure titanium sheets by shot peening for bone implant applications, Biointerface Res. Appl. Chem. 12(5) (2022), 5745-5752 (Web of Sci & Scopus, Q3)
  18. Akshay R. Govande, Jitendra Kumar katiyar, B. Ratna Sunil, Ravikumar Dumpala, Effect of heat treatment environment on the structural characteristics and microhardness of high velocity oxy-fuel sprayed tungsten carbide-cobalt coating, Material Science and Engineering Technology, 52(12) (2021), 1346-1354 (Wiley, SCI, Q3) IF 1.02
  19. Vaibhavi Barhate, Akshay R. Govande,  , Gaurav Tiwari, B. Ratna Sunil, Ravikumar Dumpala, Optimization of single roller burnishing process parameters by design of experiments, Materials Today: Proceedings 50(5) (2022) 1967-1970 (Elsevier, SCOPUS, Q2)
  20. Illa Ramakantha, Marek Kolenčík, M. Srinivasa Rao, B. Ratna Sunil, U. Vijayasree, G. Durgababu, S. Anitha Devi, Martin Šebesta, T. Siva, Tuning the Morphology and State of Aggregation of Fullerene C60 Using Non-ionic Surfactants, Colloid Journal, 2021, 83(4),  474–482 (Springer, SCI, Q4). IF 1.01
  21. Mohammad Irfan, Sk. Najma Sultana, B. Venkateswarlu, M. Jagannatham, Ravikumar Dumpala, B. Ratna Sunil *, Zinc substituted hydroxyapatite: Synthesis, structural analysis and antimicrobial behaviour, Transactions of the Indian Institute of Metals, 2021, 74,  2335–2344 (Springer, SCI, Q2). IF 1.39
  22. Y. Narendra Kumar, B. Venkateswarlu, Ravikumar Dumpala, B. Ratna Sunil *, Developing Zn-MgO composites for degradable implant applications, Materials Letters 302 (2021) 130433 (Elsevier, SCI, Q2). IF 3.57
  23. P.V.S. Mahesh, S. Akhil, P. Chiranjeevi, Y. Sivaji, V.V. Kondaiah, M. Ananda Rao, Ravikumar Dumpala, B. Ratna Sunil *, Developing composites of zinc and hydroxyapatite for degradable orthopedic implant applications, IOP Conf. Series: Materials Science and Engineering 1116 (2021) 012002. (IOP, web of science).
  24. P. Srikar, T.Sathish, P. Imran Khan, Y. Kalyan Reddy, V.V.Kondaiah, M. AnandaRao, Ravikumar Dumpala, B. RatnaSunil *, Zinc-calcium silicate composites produced by ball milling and sintering for degradable implant applications, Materials Today: Proceedings, 44 (1), 2021, 1584-1588. (Elsevier, Scopus, Q2).
  25. A. R. Govande, A. Chandak, B. Ratna Sunil, Ravikumar Dumpala, Microhardness and frictional characteristics of cryogenically treated carbide coatings, Materials Today: Proceedings (2021) 47(11), 3112-3116 (Elsevier, Scopus, Q2).
  26. B. Ramakrishnan, K. U. V. Kiran, B. Ratna Sunil, Ravikumar Dumpala Sliding Wear Characteristics of Silver Particles Incorporated Electroless Nickel Phosphorus Composite Coatings, Advances in Mechanical Engineering in: Lecture notes in Mechanical Engineering, 2021, 823-829. (Springer, Scopus, Q4).
  27. Ratna Raju Lam, V. V. Kondaiah, Y. Naidubabu, Ravikumar Dumpala, B. Ratna Sunil *, Effect of Crack Angle on Stress Shielding in Bone and Orthopedic Fixing Plate Implant: Design and Simulation, Advances in Mechanical Engineering in: Lecture notes in Mechanical Engineering, 2021, 785-792. (Springer, Scopus, Q4).
  28. H. Patle, K. U. V. Kiran, B. Ratna Sunil, Ravikumar Dumpala, Effect of Friction Stir Processing on the Sliding Wear Characteristics of AZ91 Mg Alloy Advances in Mechanical Engineering in: Lecture notes in Mechanical Engineering, 2021, 663-669. (Springer, Scopus, Q4).
  29. R. Thakurai, H. Patle, B. Ratna Sunil, Ravikumar Dumpala, Effect of cryogenic treatment duration on the microhardness and tribological behavior of 40CrMoV5 tool steel Materials Today: Proceedings 38, (2021) 2140-2144 (Elsevier, Scopus, Q2).
  30. Ch. Pavan Satyanarayana, Lam Ratna Raju, B. Ratna Sunil *, Enhancing the wettability of pure titanium by shot peening for implant applications, IOP Conf. Series: Materials Science and Engineering, (2021) 1185, 012012 (IOP, web of science).
  31. N.M.K. Sarath Kumar, G. Suresh, Ravikumar Dumpala, B. Ratna Sunil,* Solid state surface deposition by friction surfacing: A review, IOP Conf. Series: Materials Science and Engineering, (2021) 1185, 012013 (IOP, web of science).
  32. E. Siva Krishna, G. Suresh, B. Ratna Sunil, Ravikumar Dumpala, Bioactive titanium composites for bone implant applications, IOP Conf. Series: Materials Science and Engineering, (2021) 1185, 012032 (IOP, web of science).
  33. Manoj Kumar Elipey, Gopisetty Ravi Chandra, P. Sneha Latha, Anchupogu Praveen,  B. Ratna Sunil *, Enhancing diesel engine performance by using nano-dispersing agents in fuel: A review, IOP Conf. Series: Materials Science and Engineering, (2021) 1185, 012039, (IOP, web of science).
  34. R. Supriyanka, V.V. Kondaiah, Lam Ratna Raju, Ravikumar Dumpala, B. Ratna Sunil *, Role of plunge depth on the joint formation and mechanical behavior of Al6063   AZ91 dissimilar lap joint produced by friction stir welding, Material Science and Engineering Technology, 52(1) (2021) 111-121(Wiley, SCI, Q3) IF 1.02
  35. B. Krishna Sarath Kumar, M. Jagannatham, B. Venkateswarlu, Ravikumar Dumpala, B. Ratna Sunil*, Synthesis, characterization and antimicrobial properties of strontium substituted hydroxyapatite, Journal of the Australian Ceramic Society, 57 (2021) 195–204 (Springer, SCI, Q3) IF 1.74
  36. Hemendra Patle, B. Ratna Sunil, Ravikumar Dumpala, Machining characteristics, wear and corrosion behavior of AZ91 magnesium alloy - fly ash composites produced by friction stir processing, Material Science and Engineering Technology, 52(1) (2021) 88-99 (Wiley, SCI, Q3) IF 1.02
  37. Bence Farkas, Marek Kolenčík, Miroslav Hain, Edmund Dobročka, Gabriela Kratošová, Marek Bujdoš, Huan Feng, Yang Deng, Qian Yu, Ramakanth Illa, B. Ratna Sunil, Hyunjung Kim, Peter Matúš, Martin Urík, Aspergillus niger Decreases Bioavailability of Arsenic(V) via Biotransformation of Manganese Oxide into Biogenic Oxalate Minerals, Journal of Fungi,  2020, 6, 270, 1-12 (MDPI, SCI, Q1). IF 5.72
  38. Vemula Venkata Kondaiah, Yogeswar Chakrapani, Siva Irulappasamy, Anandkumar Subramaniyan, Ravikumar Dumpala and B. Ratna Sunil *, Dissimilar lap joint of Al6063 – AZ91 Mg alloy by friction stir welding, SSRN repository, (2020), http://dx.doi.org/10.2139/ssrn.3671807.
  39. Tapan K. Mahanta, N. Naga Jaydeep, M. Murali Mohan Balaji, Sataya B. Ghadei and B. Ratna Sunil, Fabrication of glass fiber composites: study of mechanical properties and free vibration analysis, SSRN repository, (2020), http://dx.doi.org/10.2139/ssrn.3654020
  40. Hemendra Patle, Venkateswarlu Badisha, Yogeswar Chakrapani, Siva Irulappasamy, B. Ratna Sunil and Ravikumar Dumpala, Assessing the effect of altering secondary phase in friction stir processed AZ91 Mg alloy by solution heat treatment, SSRN repository, (2020), http://dx.doi.org/10.2139/ssrn.3654040   
  41. K. Uday Venkat Kiran, Abhishek Arora, B. Ratna Sunil & Ravikumar Dumpala, Effect of heat treatment on the temperature dependent wear characteristics of electroless Ni–P–BN(h) composite coatings. SN Applied  Science  (2020), 2, 1101 (Springer, Scopus, Q2)
  42. B. Venkateswarlu, Sk. Shabana, Ravikumar Dumpala, B. Ratna Sunil *,  Developing Mg-Zn surface alloy by friction surface alloying (FSA): in vitro degradation studies in simulated body fluids, International Journal of Minerals, Metallurgy and Materials, (2020) 27, 962–969. (Springer, SCI, Q1) IF 3.85
  43. Hemendra Patle, B. Ratna Sunil, Ravikumar Dumpala, Sliding wear behavior of AZ91/B4C surface composites produced by friction stir processing, Mater. Res. Express 7 (2020) 016586 (IOP Science, SCI, Q2) IF 2.02
  44. Y. Naidubabu, V. V. Kondaiah, Ravikumar Dumpala, B. Ratna Sunil *, Assessing the material dependent stress distribution in fractured bone and fixing plate by finite element analysis, Lecture Notes in Mechanical Engineering, (2020) 337-342 (Springer, Scopus, Q3)
  45. M. Venkataiah, T. Anup Kumar, K. Venkata Rao, S. Anand Kumar, B. Ratna Sunil *, Role of Friction Stir Processing Parameters on the Microstructure and Hardness of ZE41 Mg Alloy: A Taguchi Approach, ASTM Mater. Perform. Characterization, 8(1) (2019) (ASTM, ESCI, Scopus, Q3) DOI:10.1520/mpc20180145
  46. Abhishek Arora, K Uday Venkat Kiran, Bijoy Ramakrishnan, B. Ratna Sunil and Ravikumar Dumpala, Effect of heat treatment on mechanical and tribological characteristics of Electroless Ni-P deposits, Journal of Physics: Conference Series 1355 (2019) 012032, (IOP, Scopus)
  47. Bijoy Ramakrishnan, Uday Venkat Kiran, Pranit Rangari, Anuj Prajapati, Zuveria Firdouz, Tathwika Jugunta, B. Uday Kumar, Ajeet Srivastav, B. Ratna Sunil, Ravikumar Dumpala, Tribological and Morphological Evaluation of Ni-P and Ni-P/D Coatings, Materials Science Forum, 969, (2019) 73-79.(Tran Tech, Scopus, Q4)
  48. Syam Prasad U., Kondaiah V. V., Akhil K., Vijay Kumar V., Nagamani B., Jhansi K., Ravikumar Dumpala, Venkateswarlu B., Ratna Sunil B *. Effect of heat treatment on microstructure, microhardness and corrosion resistance of ZE41 Mg alloy, Koroze A Ochrana Materiálu (2019) 63(2) 79-85. (De-Gruyter, Scopus, Q3)
  49. V. V. Kondaiah, Ch. Vasu, Ravikumar Dumpala and B. Ratna Sunil *, Role of microstructure on the degradation behaviour of friction stir processed AZ series Mg alloys assessed in simulated physiological solutions, IOP Conf. Series: Materials Science and Engineering, 653 (2019) 012025 (IOP, Scopus)
  50. Patle Hemendra, P. Mahendiran, Ratna Sunil B, Dumpala Ravikumar, Hardness and sliding wear characteristics of AA7075-T6 surface composites reinforced with B4C and MoS2 particles,  Materials Research Express, (2019) 6 086589. (IOP, SCI, Q2) IF 2.02.
  51. Durge Gaurav, Chandak Aayush, Jaiswal Abhimanyu Kumar, Uday Venkat Kiran Kommineni, Ratna Sunil B, Dumpala Ravikumar, Effect of heat treatment on the hardness and wear characteristics of NiCrBSi laser clad deposited on AISI410 stainless steel, Materials Research Express, 6 (2019) 086524  (IOP, SCI, Q2) IF 2.02.
  52. K. Uday Venkat Kiran, A. Abhishek, B. Ratna Sunil, Ravikumar Dumpala, Sliding wear characteristics of as-deposited and heat-treated Electroless Ni-P coatings against AISI E52100 steel ball, Materials Research Express, 6 (2019) 036401 (IOP, SCI, Q2) IF 2.02.
  53. M. Venkataiah, T. Anup Kumar, K. Venkata Rao, S. Anand Kumar, I. Siva, B. Ratna Sunil*, Effect of grain refinement on corrosion rate, mechanical and machining behaviour of friction stir processed ZE41 Mg alloy, Transactions of the Indian Institute of Metals, 72 (2019) 123-132 (Springer, SCI, Q2). IF 1.3
  54. B. Vandana, P. Syamala, D. Sri Venugopal, Sk. S.R.K. Imran, B. Venkateswarlu, M. Jagannatham, Marek Kolenčík, I. Ramakanth, Ravikumar Dumpala, B. Ratna Sunil *, Magnesium/fish bone derived hydroxyapatite composites by friction stir processing: studies on mechanical behaviour and corrosion resistance, Bulletin of Materials Science, 42 (2019) 122 (Springer, SCI, Q3) IF 1.9
  55. V. V. Kondaiah, P. Pavanteja, M. Mani Manvit, R. Ramesh Kumar, R. Ganesh Kumar, B. Ratna Sunil *, Surface engineering of ZE 41 Mg alloy by friction stir processing: effect of process parameters on microstructure and hardness evolution, Materials Today: proceedings , 15(1) (2019) 125-131 (Elsevier, Scopus, Q2)
  56. P. Pradeep Kumar, A. Raj Bharat, B. Sesha Sai, R. J. Phani Sarath, P. Akhil, G. Pradeep Kumar Reddy, V. V. Kondaiah, B. Ratna Sunil,* Role of microstructure and secondary phase on corrosion behaviour of heat treated AZ series magnesium alloys,  Materials Today: proceedings , 18(1) (2019) 175-181 (Elsevier, Scopus, Q2)
  57. Ch. Vasu, K. J. A. Naga Durga, I. Srinivas, Shaik Dariyavali, B. Venkateswarlu, B. Ratna Sunil *, Developing composite of ZE41 magnesium alloy- calcium by friction stir process for biodegradable implant applications,  Materials Today: proceedings , 18(1) (2019) 270-277 (Elsevier, Scopus, Q2)
  58. Ch. Vasu, B. Venkateswarlu, R. Venkateswara Rao, B. Chanti, M. Saikrishna, B. Ratna Sunil *, Microstructure, mechanical and corrosion properties of friction stir processed ZE41 Mg alloy, Materials Today: proceedings , 15(1) (2019) 50-56 (Elsevier, Scopus, Q2)
  59. G.V.N.B. Prabhakar, Y.V.R.S.N. Pavan Kumar, P. Dileep Kumar, B. Prasanna Kumar, M. Gopi Raju, Sk. Naseema, N. Ravi Kumar, M. Jagannatham, B. Ratna Sunil *, Producing Al5083-CNT composites by friction stir processing: influence of grain refinement and CNT on mechanical and corrosion properties, Materials Today: proceedings , (2019) 15(1), 44-49, (Elsevier, Scopus, Q2)
  60. N. Praveen Kumar, Ch. Naveen, D. Sujatha, D. Anandarao, J. Naga Sireesha, S. Anand Kumar, I. Siva, B. Venkateswarlu, M. Jagannatham, B. Ratna Sunil*, Developing composites of ZE41 Mg Alloy – Naturally Derived Hydroxyapatite by Friction Stir Processing: Investigating in vitro Degradation Behavior, Materials Technology: Advance Performance Materials 33 (9) (2018) 603-611 (Taylor and Francis, SCI ) IF 3.297
  61. N. Saikrishna, G. Pradeep Kumar Reddy, Balakrishnan Munirathinam, Ravikumar Dumpala, M. Jagannatham, B. Ratna Sunil*, An investigation on the hardness and corrosion behaviour of MWCNT/Mg composites and grain refined Mg, Journal of magnesium and alloys, 6 (2018), 83–89, (Elsevier, SCI, Q1) IF 17.6
  62. B. Lakshmana Prasad, G. Neelaiah, M. Gopi Krishna, S.V.V. Ramana, K. Sai Prakash, G. Sarika, G. Pradeep Kumar Reddy, Ravikumar Dumpala, B. Ratna Sunil*, Joining of AZ91 Mg alloy and Al6063 alloy sheets by friction stir welding,  Journal of magnesium and alloys, 6, (2018) 6, 71–76, (Elsevier, SCI, Q1) IF 17.6.
  63. G.V.N.B. Prabhakar, N. Ravi Kumar, B. Ratna Sunil*, Surface metal matrix composites of Al5083-fly ash produced by friction stir processing, Material Today: Proceedings, 5 (2018) 8391–8397 (Elsevier, Scopus, Q2)
  64. Hemendra Patle, Ravikumar Dumpala*, B. Ratna Sunil, Machining characteristics and corrosion behaviour of grain refined AZ91 Mg alloy produced by friction stir processing: Role of tool pin profile, Transactions of the Indian Institute of Metals, 71 (4) (2018), 951-959 (Springer, SCI, Q2). IF 1.39
  65. V. Swetha Chowdary, Ravikumar Dumpala, S. Anandkumar, V.V. Kondaiah, B. Ratna Sunil*, Influence of heat treatment on the machinability and corrosion behaviour of AZ91 Mg alloy, Journal of magnesium and alloys, 6, (2018), 52–58, (Elsevier, SCI, Q1) IF 17.6.
  66. T. Archana, S. Anand Kumar, R.R. Elangovan, Y. S. Rammohan, Ravikumar Dumpala, B. Ratna Sunil, R. K. Kumar, Fracture toughness and fatigue ehaviour of spider silk and S-glass epoxy composites: An FEM approach, Materials Today: Proceedings 5 (2018) 2627–2634. (Elsevier, Scopus, Q2)
  67. Y. Naidubabu, G. Mohana Rao, Ch. Rajasekhar, B. Ratna Sunil*, Design and simulation of PMMA-titanium composite bone fixing plates using finite element analysis: optimizing the composition to minimize the stress shielding effect, Proceedings of the iMechE Part C: Journal of Mechanical Engineering Science, (2017) 231(23) 4402-4412, (SAGE, SCI, Q2). IF 1.75.
  68. G.V.V Surya Kiran , K. Hari Krishna, Sk. Sameer, M. Bhargavi, B. Santosh Kumar, G. Mohana Rao, Y. Naidubabu, Ravikumar Dumpala, B. Ratna Sunil*, Machining characteristics of fine grained AZ91 Mg alloy produced by friction stir processing, Transactions of Nonferrous Metals society of China (2017), 27(4), 804-811. (Elsevier, SCI, Q1). IF 3.75.
  69. G. Pradeep Kumar Reddy, B. Ratna Sunil *, B. Balakrishna, Joining of AZ31 Mg alloy sheets by friction stir welding and investigating corrosion initiated failure, Materials Today: Proceedings (2017), 4, 6712-6717 (Elsevier, Scopus, Q2).
  70. V. V. Kondaiah, P. Pavanteja, P. Afzal Khan, S. Anand Kumar, Ravikumar Dumpala, B. Ratna Sunil *, Microstructure, microhardness and wear ehaviour of AZ31 Mg alloy – fly ash composites produced by friction stir processing, Materials Today: Proceedings (2017), 4, 6671-6677, (Elsevier, Scopus, Q2).
  71. Hanuma Reddy Tiyyagura, Balakrishnan Munirathinam, B. Ratna Sunil, Lakshman Neelakantan, Regine Willumeit-Römer, Mantravadi Krishna Mohan, Vanja Kokol, Electrochemical Corrosion Behaviour of Binary Magnesium Alloys, Journal of Materials Science and Surface Engineering, (2017), 5(3): 561-564. (Web of Science).
  72. B. Ratna Sunil, Different strategies of secondary phase incorporation into metallic sheets by friction stir processing in developing surface composites, International Journal of Mechanical and Materials Engineering (2016), 11: 12., (Springer, Scopus, Q2).
  73. B. Ratna Sunil, A. Thirugnanam, Uday Chakkingal, T.S.Sampath Kumar, Nano and ultra fine grained metallic biomaterials by severe plastic deformation techniques, Materials Technology: Advance Performance Materials (2016) 31(13), 743-755. (Taylor & Francis, SCI) IF 3.29.
  74. B. Ratna Sunil, M. Jagannatham, Producing hydroxyapatite from fish bones by heat treatment, Materials Letters (2016) 185, 411-414. (Elsevier, SCI, Q1). 3.57
  75. N. Saikrishna, G. P. K. Reddy, Balakrishnan M., B. Ratna Sunil *, Influence of bimodal grain size distribution on the corrosion behaviour of friction stir processed biodegradable AZ31 magnesium alloy, Journal of Magnesium and Alloys (2016) 4, 68–76. (Elsevier, SCI, Q1). IF 17.6.
  76. B. Ratna Sunil, T.S. Sampath Kumar, Uday Chakkingal, V. Nandakumar, Mukesh Doble, V. Devi Prasad, M. Raghunath. In vitro and in vivo studies of biodegradable fine grained AZ31 magnesium alloy produced by equal channel angular pressing, Materials Science and Engineering: C (2016) 59, 356–367. (Elsevier, SCI, Q1). IF 8.45
  77. B. Ratna Sunil, G.P.K. Reddy, H. Patle, D. Ravikumar, Magnesium based surface metal matrix composites by friction stir processing, Journal of Magnesium and Alloys (2016), 4, 52-61. (Elsevier, SCI, Q1).  IF 17.6.
  78. B. Ratna Sunil, K. V. Ganesh, P. Pavan, G. Vadapalli, Ch. Swarnalatha, P. Swapna, P. Bindukumar, G. P. K. Reddy, Effect of aluminium content on machining characteristics of AZ31 and AZ91 magnesium alloys during drilling, Journal of Magnesium and Alloys (2016), 4, 15-21 (Elsevier, SCI, Q1). IF 17.6.
  79. B. Ratna Sunil, G.P.K.Reddy, Corrosion behaviour of friction stir welded AZ31B Mg alloy-Al6063 alloy joint, Cogent Engineering (2016) 3(1), 1145565 (Taylor & Francis, Scopus, Q2)
  80. B. Ratna Sunil, Repetitive corrugation and straightening of sheet metals, Materials and Manufacturing Processes, (2015) 30(10) 1262-1271. (Taylor & Francis, SCI, Q1) IF 4.78
  81. B. Ratna Sunil, G. P. K. Reddy, A.S.N. Mounika, P. Navya Sree, P. Rama Pinneswari, I. Ambica, R. Ajay Babu, P. Amarnadh, Joining of AZ31 and AZ91 Mg alloys by friction stir welding, Journal of Magnesium and Alloys  (2015) 4(3), 330-334. (Elsevier, SCI, Q1). IF 17.6.
  82. B. Ratna Sunil, T.S.Sampath Kumar, Uday Chakkingal, V. Nandakumar, Mukesh Doble, Nano-hydroxyapatite reinforced AZ31 magnesium alloy by friction stir processing: A solid state processing for biodegradable metal matrix composites, Journal of Materials Science: Materials in Medicine, (2014) 25, 975–988. (Springer, SCI, Q2). IF 4.72
  83. B. Ratna Sunil, T.S.Sampath Kumar, Uday Chakkingal, V. Nandakumar, Mukesh Doble, Friction stir processing of magnesium – nanohydroxyapatite composites with controlled in vitro degradation behaviour, Materials Science and Engineering C, (2014) 39, 315–324. (Elsevier, SCI, Q1). IF 8.45
  84. B. Ratna Sunil, K. Krishan Kumar, P. Jojibabu, T.S. Sampath Kumar, Uday Chakkingal., Effect of processing route and working temperature on microstructure evolution of AZ31 magnesium alloy during equal channel angular pressing, Procedia Materials Science, (2014) 5, 841 – 846. (Elsevier).
  85. G. Keerthi Soujanya, T. Hanas, V. Yogeshwar Chakrapani, B. Ratna Sunil, T. S. Sampath Kumar, Electrospun nanofibrous polymer coated magnesium alloy for biodegradable implant applications, Procedia Materials Science, (2014) 5, 817 – 823. (Elsevier)
  86. B. Ratna Sunil, C. Ganapathy, T.S. Sampath Kumar, Uday Chakkingal, Processing and evaluating mechanical behaviour of lamellar structured degradable magnesium-hydroxyapatite implants, Journal of the Mechanical Behavior of Biomedical Materials, (2014) 40, 178–189. (Elsevier, SCI, Q2). IF 4.02
  87. B. Ratna Sunil, Arun Anil Kumar, T. S. Sampath Kumar, Uday Chakkingal, Role of biomineralization on the degradation of fine grained AZ31 magnesium alloy processed by groove pressing, Material Science and Engineering C, (2013) 33, 1607–1615. (Elsevier, SCI, Q1). IF 8.45
  88. P. Jojibabu, B. Ratna Sunil, T.S.Sampath Kumar, Uday Chakkingal, V. Nandakumar and Mukesh Doble, Wettability and in vitro bioactivity studies on titanium rods processed by equal channel angular pressing, Transactions of the Indian Institute of Metals, (2013) 66(4), 299-304. (Springer, SCI, Q2). IF 1.3
  89. B. Ratna Sunil, T. S. Sampath Kumar and Uday Chakkingal Bioactive grain refined magnesium by friction stir processing, Materials Science Forum,.  (2012) 710, 264-269. (TranTech, Scopus, Q2), DOI: 10.4028/www.scientific.net/MSF.710.264
  90. B. Ratna Sunil, D. Sivaprahasam and R. Subasri Microwave sintering of nanocrystalline WC-12Co: Challenges and perspectives, International Journal of Refractory Metals & Hard Materials, (2010), 28, 180-186. (Elsevier, SCI, Q1). IF 4.8.

Book Chapters:

  1. Martin Šebesta, Ľuba Ďurišová, Dávid Ernst, Samuel Kšiňan, Ramakanth Illa, B. Ratna Sunil, Avinash P. Ingle, Yu Qian, Martin Urík & Marek Kolenčík, Foliar Application of Metallic Nanoparticles on Crops Under Field Conditions. In: Chen, JT. (eds) Plant and Nanoparticles. Springer, Singapore, 2022. https://doi.org/10.1007/978-981-19-2503-0_7
  2. B. Ratna Sunil, Ravikumar Dumpala, Surface composites by friction stir processing, In: Dermot Brabazon eds. Encyclopedia Materials: Composites, Elsevier, 2020
  3. B. Ratna Sunil, Ravikumar Dumpala, Magnesium based composites for degradable implant applications, In: Dermot Brabazon eds. Encyclopedia Materials: Composites, Elsevier, 2020
  4. Irulappasamy Siva, Manoharan Thirukumaran, Jebas T.W. Jappes, Bhimappa Suresha, Subramaniyan A. Kumar, Buradagunta R. Sunil, Glass Fiber Hybrid Effects in Assessing the Abrasive Wear Mechanisms of Naturally Woven Fabric/Polymer Composites Under Dry Conditions, In: Eds: Mohammad Jawaid, Rajini Nagarajan, Jacob Sukumaran, Patrick De Baets, Synthesis and Tribological Applications of Hybrid Materials, Wiley, 2018: pp 83-95. 
  5. Hemendra Patle , B. Ratna Sunil and Ravikumar Dumpala, Investigation on Structural and Wear Characteristics of Mg AZ91/Fly Ash Surface Composite Fabricated by Friction Stir Processing, In: Advances in Micro and Nano Manufacturing and Surface Engineering, Springer, 2019

Other publications:

  1. B. Ratna Sunil, T. S. Sampath Kumar, Uday Chakkingal, Micro/nanofeaturing of biodegradable metallic implants: new opportunities, Proceedings of International Conference on Engineering Materials and Processes (ICEMP2014), 26-28 Feb. 2014; p 50-54 (Published by CSIR-Institute of Minerals and Materials Technology), Bhubaneswar, India.
  2. Achal Kothari, B. Ratna Sunil, T.S.Sampath Kumar, Nano-composites of titanium and hydroxyapatite by mechanical milling for biomedical applications, Proceedings of the National Conference on Advances in Mechanical Engineering (NCAME 2013), 05-06 April 2013; p 89-95, Vignan University, Guntur, India.
  3. B. Ratna Sunil, T.S.Sampath Kumar, Uday Chakkingal, Corrosion behaviour of a biodegradable AZ31 Magnesium alloy processed by friction stir processing, Proceedings of International Corrosion Prevention Symposium for Research Scholars, 28 Feb – 02 March, 2013, Chennai, India, pp. 131-136.
  4. B. Ratna Sunil, Degradable fine grained AZ31 magnesium alloy processed by groove pressing, Etch, Jan-May 2013 edition 13.1, p. 7-8. (Department e-magazine, Metallurgical and Materials Engineering Department, IIT Madras, Chennai).
  5. B. Ratna Sunil, T.S.Sampath Kumar, Uday Chakkingal, A mini review on fine grained biodegradable magnesium based implants, IIM-SAC, National Institute of Technology Srinagar Vol. II, issue IV, May 2014, p 311-321.

 

Indian patents:

  1. T.S. Sampath Kumar, Uday Chakkingal, B. Ratna Sunil, An improved process for controlled degradation of grain refined magnesium alloy in temporary orthopedic implants, application no: 2551-CHE-2014, date of filing: 23-05-2014, Granted on 18-12-2020.
  2. P. V. S. Mahesh, P Chiranjeevi, Y Sivaji, S Akhil, V V Kondaiah, Ravikumar Dumpala, B. Ratna Sunil, Producing micro-lamellar zinc orthopedic implants, Application No:  202041034166, date of filing: 10-08-2020, Granted on 23-05-2022
  3. V. V. Kondaiah, B. Ratna Sunil, Rotary fabric hanging drier, Application No:  202041011839, date of filing: 19-03-2020, Granted on 20-11-2023
  4. B. Ratna Sunil, Friction assisted solid state surface alloying, application no: 201941005168, date of filing: 09-02-2019
  5. B. Ratna Sunil, A novel zinc based multiphase material for degradable biomedical applications, Application No: 201941012479, date of filing: 29-03-2019.
  6. B. Ratna Sunil, A novel cooling system to decrease the temperature of air or gas, Application No: 201941027104, date of filing: 05-07-2019.
  7. V.V. Kondaiah, B. Ratna Sunil, Multi axis rotary stir casting furnace, Application No: 202041010203, date of filing: 10-03-2020 (FER Submitted)
  8. B. Ratna Sunil, N. M. Sarath Kumar, M. Venkataiah, V. U. S. Vara Prasad, G. Suresh, M. Venu, Solid state deposition process of surface alloy coating, Application No:  202041015774, date of filing: 11-04-2020.
  9. P. Srikar, T. Sathish, Y. Kalyan Reddy, P. Imran Khan, V. V. Kondaiah, Ravikumar Dumpala, L. Ratna Raju , B. Ratna Sunil, Developing zinc calcium silicate composites for degradable load bearing implants applications. Application No:  202041035260, date of filing: 16-08-2020. (FER Submitted)
  10. Ch. Pavan Satyanarayana, L. Ratna Raju, B. Ratna Sunil, Developing high wettable pure titanium bone fixing plate by repetitive ball impacting, Application No:  202041035262, date of filing: 16-08-2020.
  11. Ravuri Daniel, B. Ratna Sunil, P. Sundara Kumar, Bode Prasad, D. Kishore Babu, T. Satyanarayana Murthy, P. Kiran Pasam, Teachable Oxygen Flow Control and Monitoring System, Application No: 202141031030, Filing date: 10-07-2021.
  12. Ravuri Daniel, Neelapala Anilkumar, B. Ratna Sunil, P. Sundara Kumar, Shaik Nazeer, Srinivasulu Vardhineni, Prashanth Babu Bandi, Prudhvi Kiran Pasam, Gas-Watch: Intelligent Gas Pipeline Leakage and Supply Demand Estimator, Application No: 202141039033, Filing date: 28-08-2021.
  13. Esther Sunanda Bandaru, Benjiman Franklin Chelli, Ravuri Daniel, B. Ratna Sunil, Safety Petri Nets based Railroad Crossing Safety Critical Control System, Application No: 202141040136, Filing date: 04-09-2021.
  14. T. Vivek Sai, B. Ratna Sunil T. Nancharaiah, Design of battery powered eco-friendly two wheeler, Application No: 202141043317, Filing date: 24-09-2021.
  15. D. Kishore Babu, Y. Ramadevi, K. Venkata Ramana, Ravuri Daniel, B. Ratna Sunil, T. Satyanarayana Murthy, Sk. Nazeer, M. Suneel, Cloud based train accident prevention safety system, Application No: 202241004928, Filing date: 29-01-2022.
  16. V. Venkateswarlu, M. Vikas, I. Srinivasula Reddy, K. Anil, T. Chiranjeevi, K. Ravi Kumar, B. Ratna Sunil, T. Chandra Sekhar Rao, Pile supported Multi-layered Porous Media, Application No: 202241037005, Date of filing: 28-06-2022. (FER Submitted)
  17. J. Chandrasekhar Rao, T. Gayatri Konni, Y. Akhila, Raja Sai Sindhu, T. Chandra Sekhar Rao, B. Ratna Sunil, A Novel Dual-band Four-Element MIMO Antenna for 5G mmWave N257/N258 and N262 band Applications, Application No: 202341026276, Filing date: 07-04-2023.
  18. J. Chandrasekhar Rao, T. Gayatri Konni, Y. Akhila, Raja Sai Sindhu, T. Chandra Sekhar Rao, B. Ratna Sunil, A compact 4-Element U-shaped MIMO Antenna with Slotted Ground for 5G mmWave Wireless Communications, Application No: 202341026280, Filing date: 07-04-2023.
  19. R. Daniel, B. Rajkumar, K. M. S. Rao, N. Jaya Lakshmi, K. manipriyanka, B. Ratna Sunil, N. Anil Kumar, Indoor weather recommendation system using integrated artificial internet of things, Application No. 202341033908, Filing date: 15-05-2023.

 

1. Associate professor, Department of Mechanical Engineering, Bapatla Engineering College, Bapatla, A.P., India.                                                  (Aug 2018 – April 2024)

2. Assistant Professor, - Department of Mechanical Engineering, Rajiv Gandhi University of Knowledge Technologies (AP-IIIT), Nuzvid, A.P, India.  (July 2014- Aug 2018)

3. Assistant Professor - School of Mechanical Engineering, Vignan Universty, Vadlamudi, Guntur, A.P., India.                                                                        (July-Dec 2009)

4. Assistant Professor - Department of Mechanical Engineering, Bharat Institute of Engineering and Technology, Hyderabad, A.P., India.                   (Dec 2007-May 2009)

 

Engineering Graphics, Materials Engineering, Basic Manufactruing Processes, Welding Technologies, Surface Engineering, Advanced Manufacturing Technologies, Industrial Engineering and Management, Industrial Mangement and Entrepreneurship Development

Research interests: Biomaterials, Nanostructured materials, Processing of magnesium alloys, Friction stir processing and welding, Composite materials, Powder metallurgy, Metal forming and Machining of non-ferrous alloys.