High impact resistant ceramic composite
Abstract
A ceramic material and a method of forming a ceramic material which possesses a high impact resistance. The material comprises: (a) a first continuous phase of .beta.-SiC; and (b) a second phase of about 25-40 vol % TiB.sub.2. Al.sub.2 O.sub.3 is preferably used as a densification aid. The material is formed by hot-pressing the mixture at a temperature from greater than about 1800.degree. C. to less than the transition temperature of .beta.-SiC to .alpha.-SiC. The hot-pressing is performed at a pressure of about 2000 psi to about 4000 psi in an inert atmosphere for several hours and results in the formation of a two phase sintered ceramic composite material.
- Inventors:
-
- Pittsburgh, PA
- Issue Date:
- Research Org.:
- ALUMINUM CO OF AMERICA
- OSTI Identifier:
- 867912
- Patent Number(s):
- 5032550
- Application Number:
- 07/420,922
- Assignee:
- Aluminum Company of America (Pittsburgh, PA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- AC04-87AL42548
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- impact; resistant; ceramic; composite; material; method; forming; possesses; resistance; comprises; continuous; phase; beta; -sic; 25-40; vol; tib; preferably; densification; formed; hot-pressing; mixture; temperature; 1800; degree; transition; alpha; performed; pressure; 2000; psi; 4000; inert; atmosphere; hours; results; formation; sintered; ceramic material; ceramic composite; composite material; inert atmosphere; continuous phase; material comprises; transition temperature; resistant ceramic; sintered ceramic; impact resistant; composite mat; impact resistance; ceramic mater; /501/
Citation Formats
Derkacy, James A. High impact resistant ceramic composite. United States: N. p., 1991.
Web.
Derkacy, James A. High impact resistant ceramic composite. United States.
Derkacy, James A. Tue .
"High impact resistant ceramic composite". United States. https://www.osti.gov/servlets/purl/867912.
@article{osti_867912,
title = {High impact resistant ceramic composite},
author = {Derkacy, James A},
abstractNote = {A ceramic material and a method of forming a ceramic material which possesses a high impact resistance. The material comprises: (a) a first continuous phase of .beta.-SiC; and (b) a second phase of about 25-40 vol % TiB.sub.2. Al.sub.2 O.sub.3 is preferably used as a densification aid. The material is formed by hot-pressing the mixture at a temperature from greater than about 1800.degree. C. to less than the transition temperature of .beta.-SiC to .alpha.-SiC. The hot-pressing is performed at a pressure of about 2000 psi to about 4000 psi in an inert atmosphere for several hours and results in the formation of a two phase sintered ceramic composite material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {7}
}
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