Diamond sintered body having high strength and high wear-resistance and manufacturing method thereof
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United States of America Patent
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Jun 2, 1998
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N/A
app pub date -
Jan 17, 1997
filing date -
Nov 30, 1994
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Abstract
A method of manufacturing a diamond sintered body includes the following steps: preparing a diamond powder having a particle size within a range of 0.1 to 10 .mu.m, coating the surface of each particle of the diamond powder with a sintering assistant agent including Pd within a range of 0.01 to 40 percent by weight and at least one iron family metal as a remainder, and liquid-phase sintering the coated diamond powder under a high pressure and high temperature condition. In this manner, a diamond sintered body having high strength and high wear-resistance, and containing diamond particles of 80 to 96 percent by volume, can be obtained.
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