Surface Species in Tribology
Abstract
The global aims of this research program have been to understand the surface chemistry of materials having important applications in tribology and to understand the influence of adsorbate structure on the frictional properties of metal-metal interfaces. The materials chosen for study have been those used as boundary layer additives to lubricant mixtures. Boundary layer additives are usually amphiphilic species present in low concentrations in lubricant fluids whose role is to form surfactant-like monolayers on metal surfaces. These monolayers form the last barrier to metal - metal contact when two surfaces are in contact under sufficiently high loads that all the fluid lubricant has been squeezed out of the contact region. For the most part our work has concentrated on the fluorinated alcohols, acids and fluorinated alkyl groups on metal surfaces. In addition we have begun the study of fluorinated ether surface chemistry.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 14, 1993
- Accession Number
- ADA270970
Entities
People
- Andrew J. Gellman
Organizations
- Carnegie Mellon University