Tomas Grejtak

Tomas Grejtak

Postdoctoral Research Associate

Research Interests:

Tomas Grejtak a postdoctoral research associate in the Surface Engineering & Tribology Group, Materials Science and Technology Division. His research focuses on wear, friction, materials deformation and contact mechanics of various materials and systems ranging from ultra-low wear thin film coatings to hard biomaterials. Grejtak has an extensive expertise in materials characterization including wear and friction experiments, nanoindentation, and high resolution microscopy. 


  • Ph.D., Mechanical Engineering, Lehigh University, Bethlehem, PA, 2022 
  • M.E., Mechanical Engineering, Lehigh University, Bethlehem, PA, 2019  
  • B.S., Mechanical Engineering, Midwestern State University, Wichita Falls, TX, 2016

Selected Publications:

  1. Grejtak, T., Jia, X., Cunniffe, A.R., Shi, Y., Babuska, T.F., Pack, R.C., Vermaak, N., Compton, B.G., Krick, B.A., “Whiskers Orientation controls wear of 3D-printed nanocomposites”. Additive Manufacturing. 2020. DOI: 10.1016/j.addma.2020.101515
  2. Babuska, T.F., Curry, J.F., Dugger, M.T., Lu, P., Xin, Y., Klueter, S., Kozen, A.C., Grejtak, T., Krick, B.A., “Role of environment on the Shear-Induced Structural Evolution of MoS2 and impact on oxidation and tribological properties for space applications”, ACS Applied Materials & Interfaces, 2022.
  3. Grejtak, T., “Evolution-structure-property-relationships of tissues drive functionality in slicing and grinding dentitions”. Dissertation thesis. Lehigh University. January 2022.
  4. Chowdhury, M.I., Sowa, M., Van Meter, K.E., Babuska, T.F., Grejtak, T., Kozen, A.C., Krick, B.A., Strandwitz, N.C., “Plasma-enhanced atomic layer deposition of titanium molybdenum nitride: Influence of RF bias and substrate structure.” J. of Vacuum Science & technology A: Vacuum, Surfaces, and Films, 2021.