Abstract
IT has been suggested by Breckenridge1 that one of the main reasons for the absorption of energy in a.c. fields by alkali halide crystals is the presence in these crystals of pairs of associated lattice defects on adjacent sites. Breckenridge carried out measurements on various halide crystals, and he found in some cases that it was necessary to heat-treat a crystal at a temperature within 25° C. of its melting point, following this treatment by fairly rapid cooling, in order to produce a sufficient number of lattice defect pairs for the energy absorption to be measurable.
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References
Breckenridge, R. G., J. Chem. Phys., 16, (10), 959 (1948).
Brit. Pat. Applic. No. 23298/53.
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RAWSON, H. Reduction in the Loss Factor of Certain Ceramics by Heat Treatment. Nature 173, 447 (1954). https://doi.org/10.1038/173447a0
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DOI: https://doi.org/10.1038/173447a0
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