US 5545687
PREPARATION OF HIGH DENSITY BORON CARBIDE CERAMICS WITH PRECERAMIC POLYMER BINDERS
Assignee
DOW CORNING CORPORATION
Filed
Feb 21, 1990
Granted
Aug 13, 1996
Location
MIDLAND MI US
Abstract
This invention relates to the preparation of a highly densified boron carbide ceramic body by the pyrolysis of a mixture comprising boron carbide powder and a preceramic organosilicon polymer selected from the group consisting of polysiloxanes, polysilazanes, polysilanes, metallopolysiloxanes and metallopolysilanes. Such highly densified ceramic bodies can be prepared by sintering under pressure or by utilizing a pressureless process.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Aug 31, 1990
Rescinded
May 23, 1994
Duration
3 years, 8 months
Inventor
- 1GARY T. BURNS
Record Details
- Patent number
- US 5545687
- Application
- 07482601
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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Back to patent indexSource: USPTO 35 USC §181 secrecy order records