COATED CERAMIC FILLER MATERIALS
Assignee
LANXIDE TECHNOLOGY COMPANY, LP
Filed
Jun 12, 1987
Granted
Apr 13, 1993
Location
NEWARK DE US
Abstract
Coated ceramic filler materials comprised of ceramic particles, fibers, whiskers, etc. having at least two substantially continuous coatings thereon are provided. The coatings are selected so that the interfacial shear strength between the ceramic filler material and the first coating, between coatings, or between the outer coating and the surrounding matrix material, are not equal so as to permit debonding and pull-out when fracture occurs. The resultant, multi-coated ceramic filler materials may be employed to provide ceramic matrix composites with increased fracture toughness. The ceramic filler materials are designed to be particularly compatible with ceramic matrices formed by directed oxidation of precursor metals.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 9, 1988
Rescinded
Mar 20, 1992
Duration
4 years
Inventor
- 1CHRISTOPHER R. KENNEDY
Record Details
- Patent number
- US 5202059
- Application
- 07061854
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records