Method for manufacturing whisker preforms and composites
Patent
·
OSTI ID:131915
A process is disclosed for manufacturing Si{sub 3}N{sub 4}/SiAlON whiskers by mixing silicon carbide powder with aluminum nitride powder, adding impurities such as calcium oxide or potassium chloride to control whisker characteristics, forming the mixture in a boron nitrogen mold of desired shaped and hot isostatically pressing the formed mixture in a nitrogen environment to produce whiskers comprised substantially of SiAlON at the nucleating end of the whisker and Si{sub 3}N{sub 4} at the other end of the whisker. In one embodiment, reinforced composites are formed by impregnating the Si{sub 3}N{sub 4}/SiAlON whisker preform with a matrix material such as resin binders, liquid metals, intermetallics or ceramic materials.
- Research Organization:
- EG & G Idaho Inc
- DOE Contract Number:
- AC07-76ID01570
- Assignee:
- Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
- Patent Number(s):
- US 5,464,583/A/
- Application Number:
- PAN: 8-100,008
- OSTI ID:
- 131915
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method for manufacturing whisker preforms and composites
Rheological behavior of injection-moldable silicon powder-silicon carbide whisker formulations
Injection moldable ceramic-ceramic composites: Compounding behavior, whisker degradation, and orientation
Patent
·
Sat Dec 31 23:00:00 EST 1994
·
OSTI ID:870144
Rheological behavior of injection-moldable silicon powder-silicon carbide whisker formulations
Journal Article
·
Tue Nov 30 23:00:00 EST 1993
· Journal of the American Ceramic Society; (United States)
·
OSTI ID:5381274
Injection moldable ceramic-ceramic composites: Compounding behavior, whisker degradation, and orientation
Journal Article
·
Sun Jan 31 23:00:00 EST 1993
· American Ceramic Society Bulletin; (United States)
·
OSTI ID:6392505