发明名称 |
Re-sintered boron-rich poly-crystalline cubic boron nitride and method for making same. |
摘要 |
<p>Disclosed is a method for making re-sintered polycrystalline CBN compact which comprises placing sintered boron-rich polycrystalline CBN particles in a high temperature/high pressure apparatus and subjecting said boron-rich CBN particles to a pressure and a temperature adequate to re-sinter said particles, the temperature being below the reconversion temperature of CBN, for a time sufficient to re-sinter the polycrystalline CBN particles therein. The boron-rich polycrystalline CBN particles in the HP/HT apparatus contain no impurity which would interfere with the sintering process (CBN sintering inhibiting impurities) and no sintering aid material. </p> |
申请公布号 |
EP0230926(A2) |
申请公布日期 |
1987.08.05 |
申请号 |
EP19870100526 |
申请日期 |
1987.01.16 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
LAVENS, THOMAS RAYMOND;CORRIGAN, FRANCIS RAYMOND;SHOTT, RICHARD LEWIS;BOVENKERK, HAROLD PAUL |
分类号 |
C04B35/626;C04B35/583;C04B35/5831;C09K3/14 |
主分类号 |
C04B35/626 |
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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