Thermal Grüneisen parameters of CdAl2O4, β–Si3N4, and other phenacite-type compounds
- 1 October 1982
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 53 (10) , 6817-6822
- https://doi.org/10.1063/1.330070
Abstract
The thermal expansion coefficients of a number of phenacites [Be2SiO4, β-Si3N4, β-Sialon, α-LiAlSiO4, Zn2SiO4, CdAl2O4, and Zn2GeO4] at temperatures at and above the Debye temperature are analyzed in terms of the thermal Grüneisen parameter γ. The phenacites have γ values intermediate between adamantine crystals and quartz. Values of γ between 0.3 and 0.7 are found. A useful correlation exists between γ and the average volume per anion bond W. Values of γ approaching zero occur for sufficiently large values of W.This publication has 37 references indexed in Scilit:
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