Abrasive wear behavior of MoSi{sub 2}/SiC and MoSi{sub 2}/ZrO{sub 2} composites
- Bureau of Mines, Albany, OR (United States). Albany Research Center
- Los Alamos National Lab., NM (United States)
The volume wear behavior of MoSi{sub 2}/SiC and MoSi{sub 2}/ZrO{sub 2} composites was evaluated using 150 grit SiC particles in a pin-on-drum abrasion test. The addition of SiC whiskers or particles reduced the volume wear of the composite relative to monolithic MoSi{sub 2} by about a factor of two, with the SiC whisker containing composite having a slightly lower volume wear rate than the SiC particulate reinforced composite. The addition of partially-stabilized (PS)-ZrO{sub 2} particles lowered the volume wear of the composite relative to MoSi{sub 2}. The addition of unstabilized (US)-ZrO{sub 2} or fully-stabilized (FS)-ZrO{sub 2} particles to the MoSi{sub 2} matrix had little effect of the volume wear relative to the unreinforced matrix. The difference in wear behavior of the ZrO{sub 2} reinforced composites may be associated with the ability of the PS-ZrO{sub 2} particles to transform reducing the fragmentation process during abrasion.
- OSTI ID:
- 69672
- Journal Information:
- Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 11 Vol. 32; ISSN SCRMEX; ISSN 0956-716X
- Country of Publication:
- United States
- Language:
- English
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