ELASTIC CONSTANTS OF CsBr, CsI, RbBr, AND RbI
The elastic constants of two body-centered halides, CsBr and CsI, were determined as a function of temperature at 300 to 73 deg K. The velocity measurements were obtained with an ultrasonic interferometer constructed according to the design principles of Williams and Lamb. Room temperature constants of RbBr and RbI samples were also measured. The values of C/sub 11/, C/ sub 12/, and C/sub 44/ in units of 10/sup 1/ s/sup 1/ d/cm/sup 2/ at22 deg C for these salts are given in the following table: The temperature dependence of all the cesium salt constants was negative and nearly linear over the temperature range investigated. It was found that with decreasing temperatures C/sub 44/ increased more rapidly than C/sub 12/ for the two cesium salts examined. The elastic constant data of the sodium chloride type halides, compiled from the literature, are compared with those of the cesium chloride type salts. (anth)
- Research Organization:
- Rensselaer Polytechnic Inst., Troy, N.Y.
- NSA Number:
- NSA-15-031401
- OSTI ID:
- 4840430
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 123; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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