CHROMIUM-RICH COATINGS WITH WS2 NANOPARTICLES CONTAINING FULLERENE-LIKE STRUCTURE.
- Resource Type
- Article
- Authors
- EIDELMAN, O.; FRIEDMAN, H.; ROSENTSVEIG, R.; MOSHKOVITH, A.; PERFILIEV, V.; COHEN, S. R.; FELDMAN, Y.; RAPOPORT, L.; TENNE, R.
- Source
- NANO. Aug2011, Vol. 6 Issue 4, p313-324. 12p.
- Subject
- *NANOPARTICLES
*CHROMIUM
*SURFACE coatings
*FULLERENES
*MOLECULAR structure
*TRIBOLOGY
*STAINLESS steel
- Language
- ISSN
- 1793-2920
In this work chromium-rich coatings impregnated with fullerene-like (IF)-WS2 nanoparticles were deposited on stainless steel substrates. The coatings were obtained from a trivalent chromium bath at pH 2 by galvanostatic electrodeposition. Zinc and cobalt salts were added to the aqueous solution in small amounts serving as cationic growth promoters. Photodeposition of tin-palladium nanoparticles was used as seeding enhancer for the co-deposition of the fullerene-like nanoparticles. The coatings were characterized by a number of techniques and were found to show a decreasing gradient of the IF nanoparticles towards the film-substrate interface. Tribological tests showed that in contrast to the substrate and the pure metal coating, the IF-containing films exhibit low friction and wear. [ABSTRACT FROM AUTHOR]