Preparation of high density boron carbide ceramics with preceramic polymer binders
US5545687A · kind A · utility
13Cited by
23References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1990 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Feb 21, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/38
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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: USPTO / EPO open patent data. Objective bibliographic and citation counts.