Silicon nitride sintered body and wear resistant member using the same
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United States of America Patent
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Sep 13, 2016
Grant Date -
Sep 10, 2015
app pub date -
Oct 21, 2013
filing date -
Oct 30, 2012
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Abstract
The present invention provides a silicon nitride sintered body comprising a silicon nitride crystalline particle and a grain boundary phase, the silicon nitride sintered body having an area ratio of the grain boundary phase per 100 μm×100 μm unit area of 15 to 35% when an arbitrary cross section thereof is photographed. Further, it is preferable that the area ratio of the grain boundary phase per 100 μm×100 μm unit area is 15 to 25%. Furthermore, the silicon nitride sintered body is suitable for a wear resistant member. Due to above structure, there can be provided a silicon nitride sintered body and a wear resistant member having a high processability (workability) and an excellent sliding property.
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