Pyroelectric effect in barium titanate ceramic

Sidney B. Lang; Lynn H. Rice; Steven A. Shaw

doi:10.1063/1.1657195

Pyroelectric effect in barium titanate ceramic

Sidney B. Lang, Lynn H. Rice, Steven A. Shaw

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Abstract

The pyroelectric coefficient (at constant stress) of a 95 wt% BaTiO ₃, 5 wt% CaTiO₃ ceramic composition (Clevite Ceramic B) was measured over the temperature range from 4.9°to 400°K. Extrema in the pyroelectric coefficient were observed at the rhombohedral-orthorhombic transition point (150°-170°K), the orthorhombic-tetragonal transition point (240°-260°K), and the tetragonal-cubic transition point (Curie point, at 387°K). The pyroelectric coefficient showed no anomalous behavior below 150°K. A spontaneous polarization curve derived from the pyroelectric results is compared with published single-crystal measurements. The ceramic results can be completely interpreted by means of a model describing switching of domain orientations at phase transitions.

Original language	English
Pages (from-to)	4335-4340
Number of pages	6
Journal	Journal of Applied Physics
Volume	40
Issue number	11
DOIs	https://doi.org/10.1063/1.1657195
State	Published - 1 Dec 1969
Externally published	Yes

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Physics and Astronomy (all)

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title = "Pyroelectric effect in barium titanate ceramic",

abstract = "The pyroelectric coefficient (at constant stress) of a 95 wt% BaTiO 3, 5 wt% CaTiO3 ceramic composition (Clevite Ceramic B) was measured over the temperature range from 4.9°to 400°K. Extrema in the pyroelectric coefficient were observed at the rhombohedral-orthorhombic transition point (150°-170°K), the orthorhombic-tetragonal transition point (240°-260°K), and the tetragonal-cubic transition point (Curie point, at 387°K). The pyroelectric coefficient showed no anomalous behavior below 150°K. A spontaneous polarization curve derived from the pyroelectric results is compared with published single-crystal measurements. The ceramic results can be completely interpreted by means of a model describing switching of domain orientations at phase transitions.",

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T1 - Pyroelectric effect in barium titanate ceramic

AU - Lang, Sidney B.

AU - Rice, Lynn H.

AU - Shaw, Steven A.

PY - 1969/12/1

Y1 - 1969/12/1

N2 - The pyroelectric coefficient (at constant stress) of a 95 wt% BaTiO 3, 5 wt% CaTiO3 ceramic composition (Clevite Ceramic B) was measured over the temperature range from 4.9°to 400°K. Extrema in the pyroelectric coefficient were observed at the rhombohedral-orthorhombic transition point (150°-170°K), the orthorhombic-tetragonal transition point (240°-260°K), and the tetragonal-cubic transition point (Curie point, at 387°K). The pyroelectric coefficient showed no anomalous behavior below 150°K. A spontaneous polarization curve derived from the pyroelectric results is compared with published single-crystal measurements. The ceramic results can be completely interpreted by means of a model describing switching of domain orientations at phase transitions.

AB - The pyroelectric coefficient (at constant stress) of a 95 wt% BaTiO 3, 5 wt% CaTiO3 ceramic composition (Clevite Ceramic B) was measured over the temperature range from 4.9°to 400°K. Extrema in the pyroelectric coefficient were observed at the rhombohedral-orthorhombic transition point (150°-170°K), the orthorhombic-tetragonal transition point (240°-260°K), and the tetragonal-cubic transition point (Curie point, at 387°K). The pyroelectric coefficient showed no anomalous behavior below 150°K. A spontaneous polarization curve derived from the pyroelectric results is compared with published single-crystal measurements. The ceramic results can be completely interpreted by means of a model describing switching of domain orientations at phase transitions.

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Pyroelectric effect in barium titanate ceramic

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