Elastic Moduli of Germanium Versus Hydrostatic Pressure at 25.0°C and −195.8°C

Abstract

Ultrasonicwavevelocities and elastic moduli for high purity germanium have been measured as a function of hydrostaticpressure and temperature in the ranges 0 to 30 000 psi and −195.8° to 25°C. The high degree of self‐consistency of results provides a further check on the pulse superposition method used. [H. J. Mc‐Skimin and P. Andreatch, J. Acoust. Soc. Am. 34, 609 (1962).] The results obtained should prove valuable in increasing the accuracy of third‐order elastic moduli determinations.