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Biography

Mr S. Sudhakara sarma works as Scientist F at ARCI, Dept. of Science and Technology, Hyderabad.
He graduated from the College of Engineering at Osmania University in 1996 and did a master's in mechanical engineering from JNTU Hyderabad in 2001.
He has a crucial role at ARCI in developing heat pipe heat sinks, heat pipe-based solar cooking devices, heat pipe-based cabinet electric cooling devices, and heat pipe-based bunker-heaters for the army in cold places.
He designed and fabricated an attrition-type mechanical mill for powder milling and alloying in powder metallurgy.
He established an indigenously developed hot extrusion facility at ARCI, which operates at 1100 MPa loads to consolidate powder into a solid material, particularly for ODS alloys.
He established the electrospinning lab at ARCI for the production of nanofibers from polymers.
He established a cryo-milling facility for the synthesis of nanopowders.
He developed Chromium interconnect material for solid oxide fuel cells through the powder metallurgy route.
He developed nano-boron powder through the cryomilling process for propulsion applications for DRDO.
He served as the principal investigator and co-investigator for numerous sponsored projects.
He had one USA patent and two Indian patents, and 11 international scientific journal publications.
He got R&D professional award from Powder Metallurgy Association of India.
His research interest areas are Powder metallurgy, mechanical alloying, and the synthesis of nanopowders by cryo-milling and developing the alloys through Powder Metallurgy method.

Mr. Sudhakara sarma developed few technologies starting from proof of concept at the laboratory scale and demonstration of the technology. He associated with developing technology and the transfer of technology to the Indian industry. Some of his contributions to the interdisciplinary area include the following.
1. Development of air-stable and hydrocarbon fuel dispersible amorphous nano boron powder for solid rocket motor and air-breathing missile applications: Mr. Sudhakara sarma is the principal investigator to develop nano boron powder through cryo-milling and thus demonstrating its ability to make air-stable and dispersion stable in JP10 fuel for propulsion applications. He developed and supplied nano boron powder to GTRE, Bangalore.
2. Development of Chromium-based interconnect material for SOFC: Mr.Sudhakara sarma played a crucial role in developing the chromium-based interconnect plates through compaction and sintering of the powder-by-powder metallurgy route. He has a US patent in this area. He developed the powder for Interconnect materials and supplied to M/S bloom energy.
3. Nanofiber coated air filtration medium for automobile industry: Mr. Sudhakara sarma played an important role in developing the polyamide -6 nanofiber coatings through electrospinning method on Fleet guard filter medium for high-performance filter applications. 
4. 9 Chrome ODS steels: Mr. Sudhakara sarma had contributed to develop ODS steels.
5. Indigenizing heat pipe based heat sink technology for cooling electronic devices in India: Mr. Sudhakara sarma played a crucial role in developing/indigenizing heat pipe technology and transferring the technology to the Indian industry. He developed many heat pipe-based devices for heat transfer applications.

Research Areas of Interest

Cryo-milling of powders, Nano boron, Nanoboron nitrides, Nanofibers, Powder metallurgy, ODS materials, Heat transfer, Mechanical milling, Hot extrusion, translational research on powder metallurgy, and nanomaterials synthesis and applications.

Highest Qualification

Master of Technology in Mechanical Engineering

Other Qualifications

Bachelor of Engineering in Mechanical Engineering

List of Publications

1. Saumashish Mukherjee, Stefan Cord Landwehr, T.Swaroopa Rani, Lal Duhsaki, Sreedhara Sudhakara Sarma, Tata Narsinga Rao, Bruno M. Moerschbacher, Jogi Madhuprakash, First evidence of cryo-milling enhancing enzymatic production of chitooligosaccharides from chitin biomass, Carbohydrate Polymers, Volume 358, (2025), 123509. https://doi.org/10.1016/j.carbpol.2025.123509
2. Sreedhara Sudhakara Sarma* Balaji Padya, Bulusu Venkata Sarada, Vasamsetti Akhila, Chandra Gowthami, Pasam Vamsi Krishna Joydip Joardar“Two-dimensional hexagonal boron nitride by cryo milling: microstructure and oxidation behavior at elevated temperature” Journal of Nano Particle Research, (2024) 26:80 DOI:10.1007/s11051-024-05992-7
3. Ch. Gowthami; Shreyas J. Kashyap; S.Sudhakara Sarma; B.V. Sarada; A. Venu Vinod; R. Vijay; Tata N. Rao, “Enhanced stability and high yield LiFePO4/C derived from low-cost iron precursors for high-energy Li-ion batteries” Journal of Energy Storage, 72 (2023) 108453
4. Singh NRR, Sreedhara SudhakaraSarma, Tata Narsinga Rao T, Pant H, Srikanth VVSS, and Kumar R* (2021) Cryo-milled nano-DAP for enhanced growth of monocot and dicot plants. Nanoscale Advances, 3, 4834 – 4842. https://doi.org/10.1039/D1NA00283J
5. * S.Sudhakara Sarma, Joudip Joardar, R.Vijay, T.N.Rao, “preparation and characterization of nano boron by cryo milling” * Advanced Powder Technology, Vol 31, 2020, P 3824-3832.
6. *S Sudhakara Sarma, Satya Prasad, Joydip Joardar, K. Suresh, A.V.Reddy, R Vijay “Nanocrystalline ODS Iron aluminide by cryo milling: consolidation, microstructure and mechanical behavior” Materials Research Express, vol 6, Issue 10,2019.
7. Tejasvi Pakki, Sudhakara sarma, Neha Y Hebalkar, Srinivasan anandan, Krishna Mohan M, T.N.Rao “Enhanced Electrochemical Performance of Electrospun SiO2Nanofibers as Binder-free Anode” Chemistry letters, no 7, vol 46, 2017, P1007-1009.
8. *S.Sudhakara sarma,“Fabrication of Compound Nanofibers for Antibacterial application in filtration” International Journal of Emerging Technology and Advanced Engineering, Volume 4, Issue 5, May 2014, P832.
9. S.B. Chandrasekhar, S.SudhakaraSarma, M.Ramakrishna, P.Suresh Babu, Tata N.Rao, B.P.Kashyap, “Microstructure and properties of hot extruded Cu–1 wt% Al2O3 nano- composites synthesized by various techniques” Materials Science&Engineering-A 591,2014, P46–53.
10. R Vijay, M Nagini, S.Sudhakara Sarma, M Ramakrishna, A.V. Reddy, and G Sundararajan “Structure and properties of nanoscale oxide dispersed iron” Metallurgical and Materials Transactions-A, Vol 45, February 2014, P777. 
11. *Sudhakara sarma sreedhara, Narasinga Rao Tata, A Novel Method for measurement of porosity in nanofiber mat using the pycnometer, Journal of Engineered Fibers and Fabrics, vol 8, issue 4, 2013, P132-137.

Patents

1. Processing powders of a refractory metal-based alloy for high-densification, Sudhakara Sarma Sreedhara, Ranganathan Sundareshan, US2009/0068055A1.
2. “Process for producing the nano boron by cryo milling,” * S.Sudhakara sarma, R.Vijay, T.N.Rao, Indian patent no;391804, granted date;11/03/2022.
3. Oxide dispersion strengthened Iron Aluminides for high strength and ductility and method of preparation,” Pothula Vijaya Durga, Sreedhara Sudhakara Sarma, Konduri Satya Prasad, Aramadaka Venu Gopal Reddy, Ravula Vijay Patent No: 478056 granted date 07/10/2023 

Major Projects / Technologies Developed

  1. Associated InTechnology Transfer of heat pipe heat sinks to M/s Capri Cables.
  2. Development of air-stable and hydrocarbon fuel dispersible amorphous nano boron powder for solid rocket motor and air-breathing missile applications: Mr. Sudhakara sarma is the principal investigator to develop nano boron powder through cryo-milling and thus demonstrating its ability to make air-stable and dispersion stable in JP10 fuel for propulsion applications. He developed and supplied nano boron powder to GTRE, Bangalore.
  3. Development of Chromium-based interconnect material for SOFC: Mr.Sudhakara sarma played a crucial role in developing the chromium-based interconnect plates through compaction and sintering of the powder-by-powder metallurgy route. He has a US patent in this area. He developed the powder for Interconnect materials and supplied to M/S bloom energy.
  4. Nanofiber coated air filtration medium for automobile industry: Mr. Sudhakara sarma played an important role in developing the polyamide -6 nanofiber coatings through electrospinning method on Fleet guard filter medium for high-performance filter applications. 
  5. 9 Chrome ODS steels: Mr. Sudhakara sarma had contributed to develop ODS steels.
  6.  Indigenizing heat pipe based heat sink technology for cooling electronic devices in India: Mr. Sudhakara sarma played a crucial role in developing/indigenizing heat pipe technology and transferring the technology to the Indian industry. He developed many heat pipe-based devices for heat transfer applications.

Awards & Honours

R&D professional Award from PMAI

Affiliation to Professional Societies

Member in PMAI
Member in MRSI