| Autor: |
Pisarenko, G., Firsov, V., Khaustov, V., Derbaremdiker, L., Kramarov, S. |
| Zdroj: |
Strength of Materials; Apr1990, Vol. 22 Issue 4, p568-575, 8p |
| Abstrakt: |
The influence of cyclic loading on the domain sructure of ferroelectric ceramic of the TsTS system was investigated by methods of transmission electron microscopy. It was observed that high-frequency cyclic deformation leads to partial depolarization of the material. This is most clearly expressed at points of application of the maximum mechanical stresses. A microstructural parameter with which may be characterized both the degree of damage and the polarized condition of the ceramic is proposed. On the basis of the results obtained a phenomenological description of the fatigue process in a piezoelectric ceramic is presented. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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