Thermal expansion in relaxor ferroelectrics
- 1 March 1988
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 79 (1) , 149-152
- https://doi.org/10.1080/00150198808229418
Abstract
Thermal expansion of PMN single crystals, modified PMN ceramics, and PLZT 8/65/35 ceramics was measured between 20 °C and 550 °C. Deviations from linear behaviour at high temperatures occur at about 350 °C, i.e. in the same region as for the index of refraction. This invar-effect is compared with the thermal expansion of glasses in the transformation region.Keywords
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