US 5324694
SILICON NITRIDE/BORON NITRIDE COMPOSITE WITH ENHANCED FRACTURE TOUGHNESS
Assignee
BABCOCK & WILCOX COMPANY THE, A CORP OF DE.
Filed
Jun 26, 1985
Granted
Jun 28, 1994
Location
LYNCHBURG VA US
Abstract
The invention relates to silicon nitride composite articles having improved fracture toughness prepared by forming a composition including small amounts of boron nitride powder in a silicon nitride powder base and processing the composition.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 5, 1985
Rescinded
Nov 6, 1992
Duration
7 years
Inventor
- 1DANIEL R. PETRAK
Record Details
- Patent number
- US 5324694
- Application
- 00674915
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
BABCOCK & WILCOX COMPANY THE, A CORP OF DE.Back to patent indexSource: USPTO 35 USC §181 secrecy order records