Piezoelectric relaxation in crystals containing point defects
β Scribed by Bhagavantam, S. ;Radhakrishna, S.
- Book ID
- 112978373
- Publisher
- Springer-Verlag
- Year
- 1969
- Tongue
- English
- Weight
- 424 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0370-0089
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π SIMILAR VOLUMES
Isothermal internal friction measurements reveal a relaxation peak in the temperature range 360-470 K for vibration frequencies between 10 -~ and 10 Hz. The temperature range and the fact that the relaxation parameters are not sensitive to the structural state of the specimens indicate a point defec
The mechanical relaxation modes for paired point defects in h.c.p. structures have been calculated by use of group theory methods. The corresponding point group symmetry is D,, for interstitial-interstitial pairs and D,, for substitutional-interstitial or substitutional-substitutional and vacancy-va