Thermal expansion anisotropy in hot-pressed SiC-whisker-reinforced alumina composites
Journal
Materials Science and Engineering A
Journal Volume
196
Journal Issue
1-2
Pages
249-251
Date Issued
1995
Author(s)
Abstract
The measured linear thermal expansion coefficients £\ of hot-pressed SiC-whisker-reinforced aluminas decrease as the SiC whisker content is increased from 1 to 60 vol.%. However, owing to the preferred orientation of the whiskers, the £\ value for each SiC whisker content is greater in the direction parallel compared with the direction perpendicular, to the hot-pressing axis. The observed behavior is generally consistent with that predicted by a model based on the effects of internal thermal mechanical mismatch strains in composites with oriented reinforcements. ? 1995.
Subjects
Alumina composites
Hot pressing
SiC whiskers
Thermal expansion anistropy
Type
journal article