Pyroelectric Li2Si2O5glass-ceramics
- 1 June 1981
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 33 (1) , 155-163
- https://doi.org/10.1080/00150198108008081
Abstract
Highly oriented surface layers of lithium disilicate crystals were grown by crystallizing glasses of the composition Li2O: SiO2. The thickness of the oriented layer was a function of the thermal treatment. The crystallites in these layers were oriented with their c-axes perpendicular to the sample surface. These layers were found to be pyroelectric as determined by the Chynoweth technique. The pyroelectric responses of the glass-ceramics crystallized in a thermal gradient were approximately four times larger than that of a tourmaline crystal of similar dimensions.Keywords
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