Microtribodynamics Home

MTDL Menu

Home Tribology Intro

Outreach People Research Publications Laboratories Sponsors Links Contact Directions History

Nick Demas (demas@uiuc.edu)
	Education B.S.Mechanical Engineering, UIUC (2000) M.S.Mechanical Engineering, UIUC (2003) - M.S. Thesis: "Tribological studies on scuffing due to the influence of CO₂ used as a refrigerant in compressors" PhD research on tribological issues related to automotive compressor surfaces Expected graduation date: 2006
Research
Tribological studies in automotive compressors Examining the effect of CO₂ and other refrigerants in different material interfaces Scuffing investigations when CO₂ is used as a refrigerant in compressors Determining the effect of using different lubricants with CO₂ at high pressures Examining how the surface topography and material properties relate to the processes leading up to surface failure in a CO₂ environment using different techniques
Publications Demas, Nicholaos G., Polycarpou, Andreas A., and Conry, Thomas F., Tribological studies on scuffing due to the influence of carbon dioxide used as a refrigerant in compressors, Tribology Transactions, v 48, n 3, 2005, p 336-342 Lee, K.M., Suh, A.Y.; Demas, N.G.; Polycarpou, A.A., Surface and sub-micron sub-surface evolution of Al390-T6 undergoing tribological testing under submerged lubrication conditions in the presence of CO₂ refrigerant, Tribology Letters, v 18, n 1, 2005, p 1-12 Demas, Nicholaos G. and Polycarpou, Andreas A., Ultra high pressure tribometer for testing CO₂ refrigerant at chamber pressures up to 2000 psi to simulate compressor conditions, Tribology Transactions, v 49, n 3, 2006, p 291-296 Demas, Nicholaos G. and Polycarpou, Andreas A., Tribological investigation of cast iron air-conditioning compressor surfaces in CO₂ refrigerant, Tribology Letters, v 22, n 3, 2006, p 271-278 Robles Hernández, Francisco C., Demas, Nicholaos. G., Davis, Dave D., Polycarpou, Andreas A., Maal, Luis, Mechanical Properties and Wear Performance of Premium Rail Steels, Wear, Accepted Tribological characterization of aromatic thermosetting copolyester (ATSP) blends with PTFE in air-conditioning compressor environment, Demas, Nicholaos. G, Zhang, Jing., Polycarpou, Andreas A., Economy, James, In preparation Robles Hernández, Francisco C., Demas, Nicholaos. G., Polycarpou, Andreas A., Tribological Performance of Premium Rail Steels, In preparation