The temperature dependence of Young's modulus and the shear modulus of polycrystalline alumina is given over the range of 25 to 1000 °C. Results are expressed in terms of the dimensionless ratio: modulus value at temperature divided by modulus value at 25 °C. These results are intended for use with Standard Reference Material No. 718 which is intended for calibration of apparatus used to determin elastic moduli of solids by a resonance technique. The worst agreement is 9.5 × 10-4 for the flexure and 19.1 × 10-4 for the torsion, between any two individual measurements, and we recommend these as the minimum acceptable limits in using the standards.
Keywords: Alumina; Young’s modulus; elastic modulus; resonance frequency; shear modulus; standard reference material.