Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 88, Issue 12, Pages 3531-3534Publisher
WILEY
DOI: 10.1111/j.1551-2916.2005.00628.x
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The effect of microstructure on the sliding-wear properties has been studied in two types of pressureless liquid-phase-sintered (LPS) SiC ceramics, one with coarse, in situ-grown elongated grains and the other with fine, equiaxed grains. Elongated-grain LPS SiC has been found to have dramatically improved sliding-wear properties over equiaxed-grain LPS SiC, which has been attributed to the interlocking network of elongated SiC grains. The introduction of an interlocking network of elongated grains represents a new guideline for the microstructural design of polycrystalline ceramics that are both sliding-wear resistant and toughened.
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