Joining of porous silicon carbide bodies
Abstract
A method of joining two porous bodies of silicon carbide is disclosed. It entails utilizing an aqueous slip of a similar silicon carbide as was used to form the porous bodies, including the sintering aids, and a binder to initially join the porous bodies together. Then the composite structure is subjected to cold isostatic pressing to form a joint having good handling strength. Then the composite structure is subjected to pressureless sintering to form the final strong bond. Optionally, after the sintering the structure is subjected to hot isostatic pressing to further improve the joint and densify the structure. The result is a composite structure in which the joint is almost indistinguishable from the silicon carbide pieces which it joins.
- Inventors:
-
- Worcester, MA
- Thompson, CT
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 867359
- Patent Number(s):
- 4921554
- Application Number:
- 07/250,018
- Assignee:
- Norton Company (Worcester, MA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- 86X-SB045C
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- joining; porous; silicon; carbide; bodies; method; disclosed; entails; utilizing; aqueous; slip; similar; form; including; sintering; aids; binder; initially; join; composite; structure; subjected; cold; isostatic; pressing; joint; handling; strength; pressureless; final; strong; bond; optionally; hot; improve; densify; result; indistinguishable; pieces; joins; strong bond; composite structure; porous silicon; silicon carbide; hot isostatic; isostatic pressing; pressureless sintering; porous bodies; sintering aids; cold isostatic; carbide bodies; /156/419/
Citation Formats
Bates, Carl H, Couhig, John T, and Pelletier, Paul J. Joining of porous silicon carbide bodies. United States: N. p., 1990.
Web.
Bates, Carl H, Couhig, John T, & Pelletier, Paul J. Joining of porous silicon carbide bodies. United States.
Bates, Carl H, Couhig, John T, and Pelletier, Paul J. Tue .
"Joining of porous silicon carbide bodies". United States. https://www.osti.gov/servlets/purl/867359.
@article{osti_867359,
title = {Joining of porous silicon carbide bodies},
author = {Bates, Carl H and Couhig, John T and Pelletier, Paul J},
abstractNote = {A method of joining two porous bodies of silicon carbide is disclosed. It entails utilizing an aqueous slip of a similar silicon carbide as was used to form the porous bodies, including the sintering aids, and a binder to initially join the porous bodies together. Then the composite structure is subjected to cold isostatic pressing to form a joint having good handling strength. Then the composite structure is subjected to pressureless sintering to form the final strong bond. Optionally, after the sintering the structure is subjected to hot isostatic pressing to further improve the joint and densify the structure. The result is a composite structure in which the joint is almost indistinguishable from the silicon carbide pieces which it joins.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 01 00:00:00 EDT 1990},
month = {Tue May 01 00:00:00 EDT 1990}
}