Some Elastic and thermal properties of zirconium and tungsten

Publisher Website
Google Scholar
Abstract
The longitudinal and shear wave velocities of 10 Mc/s ultrasonic waves have been measured in polycrystalline specimens of zirconium and tungsten at temperatures between 14° and 300°k and the elastic constants calculated from these measurements. The difference between the specific heats at constant pressure and at constant volume in these metals at various temperatures has been calculated by means of the thermodynamic relation involving the bulk modulus of the metal; this difference is used in the examination of a suggested method of obtaining the γ values, and hence the electronic specific heats of metals. It is found that the γ values for zirconium and tungsten estimated by this method are greater by factors of about 1·3 and 2·8 respectively than the values obtained from low-temperature calorimetric determinations. For a number of reasons, which are discussed, close agreement is not to be expected but no satisfactory explanation for the very wide discrepancy has been found.

This publication has 20 references indexed in Scilit: