Chanaka Ihala Gamaralalage

Chanaka K Ihala Gamaralalage

R&D Associate Staff Scientist

Chanaka Kumara is R&D Associate Staff Scientist in the Material Science and Technology Division at Oak Ridge National Laboratory, Oak Ridge, TN. Chanaka earns his Ph.D. from University of Mississippi in Analytical Chemistry. His work includes Nanomaterial synthesis (metallic, ceramic, and carbon nanotubes), Surface modification, Chemical Vapor Deposition, Tribology, Focused ion beam sample preparation, and electron microscopy characterization. He has published 32+ peer-reviewed journal papers, one book chapter, and several U.S. patent applications. Publication records: Citations: 2000+, h index: 23


  • Ph.D. in Analytical Chemistry, University of Mississippi, MS, USA 2016.
  • M.Sc. in Chemical Science, University of Peradeniya, Sri Lanka 2009.
  • B.Sc. Specialized in Chemistry, University of Peradeniya, Sri Lanka 2005.

Award and Honors

  • STLE Early Career Award for outstanding contribution to the field of Lubrication Science, 2020.
  • R&D 100 Award Finalist, ORNL, R&D Magazine, 2022, A superlubricity coating composed of vertically aligned carbon nanotubes.
  • R&D 100 Award Finalist, ORNL and Danfoss, R&D Magazine, 2020, A high-efficiency carbon nanotube-coated mesh seal.

Patents and Patent Applications

  • Metal Nanoparticles as Lubricant Additives, C. Kumara, J. Qu, US Patent #11,370,988, Jun 22, 2022
  • A Super-lubricity Coating Composed of Vertically Aligned Carbon Nanotubes, C. Kumara, J. Qu, P.A. Menchhofer, U.S. Patent #11,970,764, Apr. 30, 2024.
  • Temperature sensitive coatings, U.S. Patent Application No.18/119,373, March 9, 2023.
  • A High-Efficiency Seal Composed of Carbon Nanotubes, US Provisional Patent Application 63/284,753, Dec. 2, 2021.
  • CNT coating as a novel thermal interface material, U.S. Provisional Patent Application 63/432,435, Dec.14, 2022.

Professional Societies:

  • American Chemical Society (ACS).
  • Society of Tribologists and Lubrication Engineers (STLE).


  • Guest Editor : Lubricants special issue “Advanced Lubrication for Energy Efficiency II”,2021.
  • Guest Editor : Lubricants special issue “Advances in Novel Lubricant Additives”, 2022.
  • Serving as a Peer reviewer for ACS, RSC, and Tribology journals: ACS Applied Nano Materials, ACS Applied Materials & Interfaces, Tribology International, Wear, RSC Advances, Lubricants, etc.