| 发明名称 |
ULTRAHARD DIAMONDS AND A METHOD FOR PREPARATION THEREOF |
| 摘要 |
FIELD: carbon materials. ^ SUBSTANCE: monocrystalline diamond grown via chemical precipitation from gas phase induced by microwave plasma is subjected to annealing at pressures above 4.0 GPa and heating to temperature above 1500°C. Thus obtained diamonds exhibit hardness higher than 120 GPa and crack growth resistance 6-10 Mpa n1/2. ^ EFFECT: increased hardness of diamond product. ^ 12 cl, 3 dwg, 5 ex |
| 申请公布号 |
RU2323281(C2) |
申请公布日期 |
2008.04.27 |
| 申请号 |
RU20060104551 |
申请日期 |
2004.07.14 |
| 申请人 |
KARNEGI INSTIT'JUSHN OF VASHINGTON |
发明人 |
KHEMLI RASSELL DZH.;MAO KHO-KVANG;JAN' CHZHI-SHIJU |
| 分类号 |
C30B25/00;C30B7/00;C30B21/02;C30B23/00;C30B25/10;C30B28/06;C30B28/12;C30B28/14;C30B29/04;C30B33/00;C30B33/02;G11B27/034;G11B27/036;G11B27/10;G11B27/11;G11B27/34;H04N5/76;H04N5/765;H04N5/775;H04N5/781;H04N9/804;H04N9/82 |
主分类号 |
C30B25/00 |
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