| 发明名称 |
PROVIDING A CATLYST FREE DIAMOND LAYER ON DRILLING CUTTERS |
| 摘要 |
A method of making a polycrystalline diamond compact including providing a layer of graphene on top of a sintered PCD and transforming the graphene at high pressure and temperature into diamond that is free of metal catalyst. A method of making PCD by providing a layer of graphene powder on top of a layer of diamond powder and sintering at high pressure and temperature to transform the graphene into diamond that is free of metal catalyst at the surface. |
| 申请公布号 |
US2014154509(A1) |
申请公布日期 |
2014.06.05 |
| 申请号 |
US201213705832 |
申请日期 |
2012.12.05 |
| 申请人 |
DIAMOND INNOVATIONS, INC. |
发明人 |
Zhang Hui;Gledhill Andrew;Malik Abds-Sami;Vaughn Joel |
| 分类号 |
B23B27/20;B23B27/14 |
主分类号 |
B23B27/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A cutting element for a tool, comprising:
a substrate; a polycrystalline diamond table bonded to the substrate; and a diamond volume substantially free of catalytic material attached to the polycrystalline diamond table, wherein the polycrystalline diamond table is sandwiched between the substrate and the diamond volume substantially free of catalytic material, wherein the substantially free of catalytic material on diamond volume is not a result of a leaching process.
|
| 地址 |
Worthington OH US |
