Tribosurface and lubricant characterization by ToF-SIMS

Autor: Gerhard Poll, W.-R. Zabel, Heinrich F. Arlinghaus, Ullrich Gunst
Rok vydání: 2004
Předmět:
Zdroj: Surface and Interface Analysis. 36:1231-1235
ISSN: 1096-9918
0142-2421
DOI: 10.1002/sia.1883
Popis: The interaction of moving counterparts with lubricants generates tribosurfaces and tribointerfaces. These tribological boundary layers and their characteristics are important for the lifetime of sliding and rolling bearings. The properties of these structurally and chemically untailored surfaces are of interest for the design of long-life lubricants and high-hardness, wear-resistant surfaces. ToF-SIMS is a means for characterizing lubricants and the elemental and molecular surface compositions of tribological boundary layers. Especially the capability for the retrospective analysis of depth and lateral chemical distributions on the basis of parallel mass detection and high mass resolution enables tribological research of formerly unknown chemical surface and interface distributions. We have used ToF-SIMS to investigate lubricants for high-speed applications, as well as for the tribosurface characterization of high-speed rolling element bearings. The results show that ToF-SIMS is a very useful surface-diagnostic tool for obtaining information about surface compositions of tribological systems. The measured surface spectra as well as lateral and depth distributions correlate with tribological models and give insights into tribological interaction mechanisms at micro- and nanoscopic levels.
Databáze: OpenAIRE
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