Accession Number : ADP001515

Title :   Elastic Constants of Quartz and Their Temperature Coefficients,

Corporate Author : ROME AIR DEVELOPMENT CENTER HANSCOM AFB MASS SOLID STATE SCIENCES DIV

Personal Author(s) : Kahan,Alfred

Report Date : 1982

Pagination or Media Count : 11

Abstract : The frequency and temperature dependencies of singly and doubly rotated crystal cuts are determined by the elastic, piezoelectric, and dielectric constants of the material and their temperature coefficients. We have subjected the data set from which the currently derived accepted values of these constants are derived to a least square analysis. We find extensive differences between currently listed constants and the least square derived values. The major differences occur in the elastic constants c13 and c33. We derive a new set of temperature coefficients of elastic constants based on a data set of 100-120 experimental data points. These computations point out the need to redetermine these constants on a geometrically consistant sample set, and on statistically significant number of doubly rotated disks and resonators.

Descriptors :   *Frequency, *Control, *Symposia, *Quartz, *Constants, *Least squares method, Elastic properties, Temperature coefficients, Rotation, Crystals, Tables(Data), Frequency standards, Resonators

Distribution Statement : APPROVED FOR PUBLIC RELEASE