Pyroelectric glass-ceramics
- 15 May 1980
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 36 (10) , 817-818
- https://doi.org/10.1063/1.91328
Abstract
Highly oriented surface layers of lithium disilicate crystals were grown by crystallizing glasses of composition Li2Si2O5 in a temperature gradient. The polar c axes of the crystallites were oriented parallel to the temperature gradient and perpendicular to the sample surface. The pyroelectric response of the glass‐ceramic crystallized in a thermal gradient was approximately four times larger than that of a touramaline crystal of similar dimensions. The time dependence of the pyroelectric signal obeys the thin‐film equivalent circuit model developed by Chynoweth.Keywords
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