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Thermal Stability of (1− x )BiScO 3 − x PbTiO 3 Piezoelectric Ceramics for High‐Temperature Sensor Applications
Author(s) -
Chen Si,
Dong Xianlin,
Mao Chaoliang,
Cao Fei
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01201.x
Subject(s) - phase boundary , materials science , curie temperature , atmospheric temperature range , tetragonal crystal system , piezoelectricity , ceramic , thermal stability , solid solution , mineralogy , condensed matter physics , phase (matter) , analytical chemistry (journal) , composite material , thermodynamics , metallurgy , ferromagnetism , chemistry , physics , organic chemistry , chromatography
High‐temperature piezoelectric (1− x )BiScO 3 − x PbTiO 3 ceramics with composition ( x =0.62, 0.63, 0.64, and 0.65) near the morphotropic phase boundary were fabricated. A thermal depoling experiment was used to investigate the stability of polarization at the temperature range from 200° to 460°C. The results indicated that samples with rhombohedral phase began to depole when the temperature was higher than 300°C, while samples with a tetragonal phase showed good resistance to thermal depoling up to 440°C, close to their Curie temperature.