Articles
  • Effects of solid lubricant content and size on the tribology ofNiCr-Cr2O3-Agcomposites 
  • Eunyoung Kuk, Gilyoung Kim and Changhee Lee*
  • Division of Materials Science and Engineering, Hanyang University, Seoul 133-791, Korea Ceramic Process Research Center (CPRC), Hanyang University
Abstract
The tribological behavior of NiCr-Cr2O3 blended powder containing solid lubricants Ag and/or BaF2/CaF2 eutectic was evaluated according to the content and particle size of solid lubricant and wear temperature. A spark plasma sintering (SPS) process was used to produce bulk wear specimens. The wear tests were carried out with a pin-on-disk type instrument under dry sliding conditions. Friction coefficient, wear loss and content of transferred tribofilm were evaluated. The friction coefficient decreased with an increase of Ag content and the effect of decreasing Ag size was compatible to that of increasing Ag content.

Keywords: Solid lubricant, Tribology, Silver, Spark plasma sintering

This Article

  • 2005; 6(2): 95-100

    Published on Jun 30, 2005