发明名称 |
Triphasic composite and method for making same |
摘要 |
A method for fabricating a triphasic composite such as a WC/Co/diamond composite with a high volume fraction of diamond in a WC/Co matrix. The method involves sintering of a WC/Co powder compact to develop a porous preform, which displays some rigidity and strength, infiltrating the porous preform with a controlled distribution of carbon, and high pressure/high temperature treatment of the carbon-containing WC/Co preform to transform the carbon to diamond. The distribution of diamond in the composite can be functionally graded to provide a WC/Co core and a diamond-enriched surface, wherein all three phases form an interconnected structure in three dimensions. Such a tricontinuous structure combines high strength and toughness with superior wear resistance, making it attractive for applications in machine tools and drill bits. |
申请公布号 |
AU8566598(A) |
申请公布日期 |
1998.11.11 |
申请号 |
AU19980085665 |
申请日期 |
1998.03.25 |
申请人 |
RUTGERS UNIVERSITY;DIAMOND MATERIALS INC.;BERNARD H KEAR;RAJENDRA K. SADANGI;LARRY E MCCANDLISH;OLEG VORONOV |
发明人 |
BERNARD H KEAR;RAJENDRA K. SADANGI;LARRY E MCCANDLISH;OLEG VORONOV |
分类号 |
B22F3/26;C22C1/05;C22C26/00 |
主分类号 |
B22F3/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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