发明名称 |
USE OF BAKED FIBROUS GRAPHITE FOR FORMATION WORKING POLYCRYSTAL DIAMOND AND/OR CUBIC BORON NITRIDE/SILICON CARBIDE/SILICON COMPOSITE BODY |
摘要 |
Disclosed is an improvement in a process for fabricating a polycrystalline diamond and/or cubic boron nitride-silicon carbide-silicon composite body fabricated by infiltrating silicon through a mixture of a carbonaceous material and non-diamond carbon coated diamond and/or cubic boron nitride under partial vacuum at elevated temperature. Such improvement comprises providing fibrous graphite for inclusion in the mixture, said fibrous graphite being subjected to heat treatment at a temperature of between about 800 DEG and 1700 DEG C. prior to its inclusion in the mixture and at a temperature of between about 800 DEG and 1550 DEG C. after its inclusion in the mixture. Such heat treatment is conducted under a total pressure of less than about 1 Torr. The vacuum silicon infiltration then is practiced on the mixture which includes the heat treated graphite fibers. |
申请公布号 |
JPS57145074(A) |
申请公布日期 |
1982.09.07 |
申请号 |
JP19820014706 |
申请日期 |
1982.02.01 |
申请人 |
GENERAL ELECTRIC CO |
发明人 |
SUTEFUAN CHIYAARUZU HAIDEN |
分类号 |
C04B35/52;B24D3/06;C04B35/573;C04B35/583;C04B41/85;D01F11/16 |
主分类号 |
C04B35/52 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|