发明名称 |
POLYCRYSTALLINE DIAMOND AND METHOD OF MANUFACTURING THE SAME |
摘要 |
Polycrystalline diamond includes cubic diamond and hexagonal diamond, and a ratio of X-ray diffraction peak intensity of a (100) plane of the hexagonal diamond to X-ray diffraction peak intensity for a (111) plane of cubic diamond is not lower than 0.01%. In addition, a present method of manufacturing polycrystalline diamond includes the steps of preparing a non-diamond carbon material having a degree of graphitization not higher than 0.58 and directly converting the non-diamond carbon material to cubic diamond and hexagonal diamond and sintering the non-diamond carbon material, without adding any of a sintering agent and a binder, under pressure and temperature conditions at which diamond is thermodynamically stable. |
申请公布号 |
US2012258035(A1) |
申请公布日期 |
2012.10.11 |
申请号 |
US201113517921 |
申请日期 |
2011.08.10 |
申请人 |
SUMIYA HITOSHI;YAMAMOTO KATSUKO;SATO TAKESHI;ARIMOTO KEIKO |
发明人 |
SUMIYA HITOSHI;YAMAMOTO KATSUKO;SATO TAKESHI;ARIMOTO KEIKO |
分类号 |
C01B31/00;B05B1/00;B21C3/02;B23H11/00;B24B53/12;B24D3/00;B26D1/00;B26D3/08;B26D7/00;C01B31/06 |
主分类号 |
C01B31/00 |
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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