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The role of the cation in antiwear films formed from ZDDP on 52100 steel
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pereira, G. Dias Lachenwitzer, Andreas Munoz-Paniagua, David J. Kasrai, Masoud Norton, Peter R. Abrecht, Mike Gilbert, Pupa U. P. A. |
| Copyright Year | 2006 |
| Abstract | Phosphorus L-edge and oxygen K-edge X-ray PhotoEmission Electron Microscopy (XPEEM) have been used to characterize the chemical nature of the cation present in tribochemical films via comparison with model Fe2+ and Zn2+ compounds. The results are contrasted to the P L-edge, P K-edge and S K-edge XANES data. The findings suggest that antiwear pads containing long chain zinc polyphosphate glass are formed at the points of asperity contact, and a thin, short chain zinc polyphosphate film is formed where no asperity contact is made. SEM/EDX measurements helped to elucidate the distribution of the elements, and strong spatial correlations were observed between P, O, Zn and S in the pads, indicating that they are composed mostly of zinc polyphosphates, especially near the surface. The zinc polyphosphate antiwear pads are characterized by a much lower modulus than that observed on the thin film regions, the latter being characteristic of the substrate steel. |
| Starting Page | 109 |
| Ending Page | 119 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s11249-006-9059-y |
| Volume Number | 23 |
| Alternate Webpage(s) | https://home.physics.wisc.edu/gilbert/wp-content/uploads/sites/3/2017/08/96.pdf |
| Alternate Webpage(s) | http://home.physics.wisc.edu/gilbert/publications/96.PDF |
| Alternate Webpage(s) | https://doi.org/10.1007/s11249-006-9059-y |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
