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Internal-friction anisotropy in a real crystal and construction of characteristic internal-friction surfaces


General trends are examined for the anisotropy in the background amplitude-independent internal friction in a real crystal with space and time dispersion. A variational criterion is formulated to define the limits of application of the theory, and a method is proposed for constructing the characteristic internal-friction surfaces.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 3, pp. 94–99, March, 1975.

I am indebted to Dr. N. A. Tyapunina and Dr. S. M. Khzardzhyan for a discussion of the results and valueable advice.

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Naimi, E.K. Internal-friction anisotropy in a real crystal and construction of characteristic internal-friction surfaces. Soviet Physics Journal 18, 371–375 (1975).

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  • Anisotropy
  • General Trend
  • Internal Friction
  • Variational Criterion
  • Real Crystal