Abstract
This paper brings out the temperature coefficients of synthetic-quartz elastic constants at liquid helium temperature. The method is based on the relationship between the resonance frequencies of a quartz acoustic cavity and the elastic constants of the material. The temperature coefficients of the elastic constants are extracted from experimental frequency-temperature data collected within the very useful cryogenic range [4 K–15 K] from a set of resonators of various cut angles, because of the anisotropy of quartz.
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