ANISOTROPIC MECHANICAL BEHAVIOR IN SAPPHIRE (A1203) WHISKERS
NAVAL AIR ENGINEERING CENTER LAKEHURST NJ AERONAUTICAL MATERIALS LAB
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A method of static tension testing whiskers was described which made it possible to obtain more precise data on the mechanical behavior of sapphire A1203 whiskers at 25C. Anisotropy was detected and measured in tensile properties of a sample of near-micron size whiskers. Measured elastic moduli, whisker cross section geometry, and yield points were useful in identifying whiskers having axes corresponding to simple growth directions in sapphire i.e. , the 0001 , 1120 , and 1100 directions.
- Geology, Geochemistry and Mineralogy