Abstract
The adiabatic elastic constants of single-crystal ammonium bromide have been measured as functions of temperature and pressure by a pulse-superposition technique. The values at 1 atm and 300°K are: c11 = 3.414, C′ = (c11—c12)/2 = 1.316, and c44 = 0.722, in units of 1011 dyn cm−2. Measurements of c11 and C′ were not made below the lambda transition at 234.5°K because of a sudden increase in attenuation; c44 was not attenuated in this manner and was measured from 105° to 320°K. The elastic constants were measured as functions of pressure between 0 and 12 kbar at constant temperatures which ranged from 255° to 315°K. In this region, which is far from the lambda line, disordered ammonium bromide behaves like a normal CsCl-type crystal.
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Dates
Type | When |
---|---|
Created | 20 years, 7 months ago (Jan. 9, 2005, 3:17 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 8, 2024, 7:36 p.m.) |
Indexed | 11 months, 2 weeks ago (Sept. 5, 2024, 11:01 a.m.) |
Issued | 59 years, 6 months ago (Feb. 1, 1966) |
Published | 59 years, 6 months ago (Feb. 1, 1966) |
Published Print | 59 years, 6 months ago (Feb. 1, 1966) |
@article{Garland_1966, title={Temperature and Pressure Dependence of the Elastic Constants of Ammonium Bromide}, volume={44}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1726795}, DOI={10.1063/1.1726795}, number={3}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Garland, C. W. and Yarnell, C. F.}, year={1966}, month=feb, pages={1112–1120} }