ELASTIC-CONSTANT DEGRADATION FROM MICROCRACKING IN CERAMIC-CERAMIC COMPOSITES CYCLED BY SLOW THERMAL LOADING

Authors
SINHA A KOKINI K BOWMAN KJ
Citation
A. Sinha et al., ELASTIC-CONSTANT DEGRADATION FROM MICROCRACKING IN CERAMIC-CERAMIC COMPOSITES CYCLED BY SLOW THERMAL LOADING, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 188(1-2), 1994, pp. 317-325
Citations number
25
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
188
Issue
1-2
Year of publication
1994
Pages
317 - 325
Database
ISI
SICI code
0921-5093(1994)188:1-2<317:EDFMIC>2.0.ZU;2-A
Abstract
The changes in stiffness due to microcracking of a Nicalon/CAS-II unid irectional composite resulting from slow cyclic heating and cooling we re investigated. Stiffness measurements were taken using an ultrasonic through-transmission method by longitudinal wave propagation. It was shown that slow cooling rates result in a decrease in C-22 and C-33, s uggesting interface debonding.