Abstract
Polar Sr2TiSi2O8 glass-ceramics were prepared by recrystallizing glasses in a steep temperature gradient. The dielectric, piezoelectric and pyroelectric properties were studied as a function of temperature in the temperature range −150 to 200‡ C. The sign of the pyroelectric coefficient is positive at room temperature and is attributed to the dominance of the secondary pyroelectric effect over the primary effect. Anomalies were observed in the dielectric, pyroelectric and piezoelectric properties and a large hysteresis was observed in all these properties. Probable causes for the anomalies are discussed.
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Halliyal, A., Bhalla, A.S., Cross, L.E. et al. Dielectric, piezoelectric and pyroelectric properties of Sr2TiSi2O8 polar glass-ceramic: A new polar material. J Mater Sci 20, 3745–3749 (1985). https://doi.org/10.1007/BF01113783
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DOI: https://doi.org/10.1007/BF01113783