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Pyroelectric and Electrostrictive Properties of (1 – x – y ) PZN · x BT · y PT Ceramic Solid Solutions
Author(s) -
Kumar Umesh,
Cross L. Eric,
Halliyal Arvind
Publication year - 1992
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.1151-2916.1992.tb04478.x
Subject(s) - electrostriction , pyroelectricity , ceramic , materials science , solid solution , barium titanate , ferroelectricity , titanate , analytical chemistry (journal) , dielectric , mineralogy , composite material , optoelectronics , metallurgy , piezoelectricity , chemistry , chromatography
The pyroelectric and electrostrictive properties of lead zinc niobate–lead titanate–barium titanate (PZN–BT–PT) ceramic solid solution were investigated. These properties of the (1 – x )PZN · x BT series were qualitatively explained with a composition fluctuation model. The pyroelectric depolarization temperatures of (1 – x – y )PZN · x BT · y PT ceramics were utilized to select compositions for room‐temperature electrostrictive applications. Among them, 0.85PZN · 0.10BT · 0.05PT ceramic with Q 11 = 0.018 m 4 / C 2 , Q 12 =−0.0085 m 4 /C 2 , s 2 at 25 kV/cm =−6.1 × 10 −4 , T max = 75°C at 1kHz, and T t = 27°C shows optimum properties for micropositioner applications.