The elastic constantsC11,C12 andC44 of sodium chlorate single crystal have been evaluated using 10 MHz ultrasonic pulse echo superposition technique. The values areC11=4.90,C12=1.39,C44=1.17 (× 1010N/m2) at 298 K and 6.15, 2.16, 1.32 (×1010N/m2) at 77 K. The data agree well with the values measured earlier up to 223 K. Brief mention is also made of the low temperature bonding problems in these soft crystals.
Volume 96, 2022
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