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Structural, Dielectric, and Pyroelectric Properties of (1− x )PbSc 0.5 Ta 0.5 O 3 –( x )PbHfO 3 Ceramics
Author(s) -
Liu Wei,
Wang Genshui,
Cao Sheng,
Mao Chaoliang,
Dong Xianlin
Publication year - 2010
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.1551-2916.2010.03996.x
Subject(s) - pyroelectricity , dielectric , ceramic , materials science , sintering , lattice constant , hot pressing , analytical chemistry (journal) , mineralogy , metallurgy , optics , optoelectronics , chemistry , physics , ferroelectricity , diffraction , chromatography
The solid solutions of (1− x )PbSc 0.5 Ta 0.5 O 3 –( x )PbHfO 3 (PSTH( x )) with pure perovskite structure were fabricated by hot‐pressing sintering method. The structural, dielectric, and pyroelectric properties of the PSTH( x ) ceramics were investigated. It was found that the long‐range ordering decreased and the grain size increased with the increase of x . The maximum dielectric constant of 21 000 at 100 Hz and the highest pyroelectric coefficient of 615 × 10 −8 C·(cm 2 ·K) −1 were obtained for an x value of 0.15, where the PSTH( x ) ceramic showed the largest lattice distortion.