INVESTIGATING THE STRUCTURAL CHEMISTRY AT THE INTERFACE FORMED BETWEEN ZINC DIALKYLDITHIOPHOSPHATE (ZDDP) AND MILD-STEEL USING ULTRA-SOFT X-RAY-ABSORPTION SPECTROSCOPY

Authors
HASTIE GP ROBERTS KJ ADAMS D FISCHER D MEITZNER G
Citation
Gp. Hastie et al., INVESTIGATING THE STRUCTURAL CHEMISTRY AT THE INTERFACE FORMED BETWEEN ZINC DIALKYLDITHIOPHOSPHATE (ZDDP) AND MILD-STEEL USING ULTRA-SOFT X-RAY-ABSORPTION SPECTROSCOPY, JPN J A P 1, 32, 1993, pp. 407-409
Citations number
9
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
32
Year of publication
1993
Supplement
32-2
Pages
407 - 409
Database
ISI
SICI code
Abstract
Ultra-soft X-ray absorption spectroscopy at the oxygen K-, iron L- and zinc L-edges has been used to probe the structural chemistry taking p lace at the interface between polished mild steel in contact with lubr icating oil mediated by the presence of ZDDP, an anti-wear additive. T he data provides evidence for cationic exchange between Fe2+ in the su bstrate and Zn2+ in the ZDDP film surface adsorbed at 60-degrees-C. Af ter decomposition at 135-degrees-C the surface layer appears zinc defi cient with a chemical composition consistent with a mixture of oxide a nd phosphate phases.