Pyroelectric effect in barium titanate ceramic

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

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

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 languageEnglish
Pages (from-to)4335-4340
Number of pages6
JournalJournal of Applied Physics
Volume40
Issue number11
DOIs
StatePublished - 1 Dec 1969
Externally publishedYes

Fingerprint

Dive into the research topics of 'Pyroelectric effect in barium titanate ceramic'. Together they form a unique fingerprint.

Cite this