TY - JOUR
T1 - Thermal fatigue resistance of open cell ceramic foams
AU - Vedula, Venkata R.
AU - Green, David J.
AU - Hellmann, John R.
N1 - Funding Information:
The authors would like to acknowledge Astro Met Associates, Inc. and Selee Corporation for providing the foams used in this study. The authors would also like to acknowledge the financial support of Gas Research Institute under Grant No 5093-260-2763 for part of this work.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1998/12
Y1 - 1998/12
N2 - A variety of open cell ceramic foams were subjected to rapid thermal cycles by infrared heating and forced air cooling to study the thermal fatigue behaviour of these materials. After cycling, the extent of damage in the samples was determined by measuring the elastic modulus using dynamic resonance (non-destructive test) and the retained strength in three-point bending (destructive test). It was found that the retained elastic modulus and strength gradually decreased with an increase in the number of cycles, followed by a saturation behaviour indicating a damage accumulation mechanism. The extent of damage was found to depend on the cellular structure parameters (i.e. cell size and density), composition, as well as thermal cycling variables, such as maximum temperature, cooling rate, etc.
AB - A variety of open cell ceramic foams were subjected to rapid thermal cycles by infrared heating and forced air cooling to study the thermal fatigue behaviour of these materials. After cycling, the extent of damage in the samples was determined by measuring the elastic modulus using dynamic resonance (non-destructive test) and the retained strength in three-point bending (destructive test). It was found that the retained elastic modulus and strength gradually decreased with an increase in the number of cycles, followed by a saturation behaviour indicating a damage accumulation mechanism. The extent of damage was found to depend on the cellular structure parameters (i.e. cell size and density), composition, as well as thermal cycling variables, such as maximum temperature, cooling rate, etc.
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U2 - 10.1016/s0955-2219(98)00159-9
DO - 10.1016/s0955-2219(98)00159-9
M3 - Article
AN - SCOPUS:0032467426
SN - 0955-2219
VL - 18
SP - 2073
EP - 2080
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 14
ER -