Silicon carbide whisker-zirconia reinforced mullite and alumina ceramics
Abstract
The flexural strength and/or fracture toughness of SiC whisker-reinforced composites utilizing mullite or alumina as the matrix material for the composite are increased by the addition of zirconia in a monoclinic or tetragonal phase to the matrix. The zirconia addition also provides for a lower hot-pressing temperature and increases the flexural strength and/or fracture toughness of the SiC whisker-reinforced composites over SiC whisker-reinforced composites of the similar matrix materials reinforced with similar concentrations of SiC whiskers.
- Inventors:
-
- Oak Ridge, TN
- Lenoir City, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 866216
- Patent Number(s):
- 4657877
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- silicon; carbide; whisker-zirconia; reinforced; mullite; alumina; ceramics; flexural; strength; fracture; toughness; sic; whisker-reinforced; composites; utilizing; matrix; material; composite; increased; addition; zirconia; monoclinic; tetragonal; phase; provides; hot-pressing; temperature; increases; similar; materials; concentrations; whiskers; matrix material; fracture toughness; silicon carbide; sic whiskers; tetragonal phase; sic whisker-reinforced; flexural strength; alumina ceramic; carbide whisker; matrix materials; similar concentration; reinforced composite; reinforced composites; /501/264/
Citation Formats
Becher, Paul F, and Tiegs, Terry N. Silicon carbide whisker-zirconia reinforced mullite and alumina ceramics. United States: N. p., 1987.
Web.
Becher, Paul F, & Tiegs, Terry N. Silicon carbide whisker-zirconia reinforced mullite and alumina ceramics. United States.
Becher, Paul F, and Tiegs, Terry N. Thu .
"Silicon carbide whisker-zirconia reinforced mullite and alumina ceramics". United States. https://www.osti.gov/servlets/purl/866216.
@article{osti_866216,
title = {Silicon carbide whisker-zirconia reinforced mullite and alumina ceramics},
author = {Becher, Paul F and Tiegs, Terry N},
abstractNote = {The flexural strength and/or fracture toughness of SiC whisker-reinforced composites utilizing mullite or alumina as the matrix material for the composite are increased by the addition of zirconia in a monoclinic or tetragonal phase to the matrix. The zirconia addition also provides for a lower hot-pressing temperature and increases the flexural strength and/or fracture toughness of the SiC whisker-reinforced composites over SiC whisker-reinforced composites of the similar matrix materials reinforced with similar concentrations of SiC whiskers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}