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Title: Pressureless sintering of whiskered-toughened ceramic composites

Patent ·
OSTI ID:869679
 [1]
  1. Lenoir City, TN
+ Show Author Affiliations

A pressureless sintering method is disclosed for use in the production of whisker-toughened ceramic composites wherein the sintered density of composites containing up to about 20 vol. % SiC whiskers is improved by reducing the average aspect ratio of the whiskers to from about 10 to about 20. Sintering aids further improve the density, permitting the production of composites containing 20 vol. % SiC with sintered densities of 94% or better of theoretical density by a pressureless sintering method.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
DOE Contract Number:
AC05-84OR21400
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5376600
OSTI ID:
869679
Country of Publication:
United States
Language:
English

References (4)

Processing of pressureless-sintered SiC whisker-reinforced Al2O3 composites journal December 1987
Suspension Processing of Al2O3/SiC Whisker Composites journal May 1988
Effect of Aspect Ratio and Liquid-Phase Content on Densification of Alumina-Silicon Carbide Whisker Composites journal May 1990
Pressureless Sintering of Sic Whisker-Reinforced Composites
  • Sacks, M. D.; Lee, H. W.; Rojas, O. E.
  • Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8 https://doi.org/10.1002/9780470310496.ch25
book

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Pressureless sintering of whisker-toughened ceramic composites
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Related Subjects

pressureless
sintering
whiskered-toughened
ceramic
composites
method
disclosed
production
whisker-toughened
sintered
density
containing
20
vol
sic
whiskers
improved
reducing
average
aspect
ratio
10
aids
improve
permitting
densities
94
theoretical
theoretical density
ceramic composites
ceramic composite
aspect ratio
pressureless sintering
composites containing
sic whiskers
whisker-toughened ceramic
sintering aids
sintering method
sintered density
toughened ceramic
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