Open AccessPiezoelectric, ferroelectric and pyroelectric properties of (100 − x)Pb(Mg1/3Nb2/3)O3 − xPbTiO3 ceramics
Author(s) -
Chuan Chen,
Yan Wang,
Jiajiu Li,
Chaofeng Wu,
Guanrong Yang
Publication year - 2022
Publication title -
journal of advanced dielectrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.38
H-Index - 13
eISSN - 2010-135X
pISSN - 2010-1368
DOI - 10.1142/s2010135x22500023
Subject(s) - pyroelectricity , ferroelectricity , materials science , piezoelectricity , ceramic , content (measure theory) , perovskite (structure) , piezoelectric coefficient , condensed matter physics , physics , analytical chemistry (journal) , crystallography , dielectric , composite material , mathematical analysis , mathematics , optoelectronics , chemistry , chromatography
A series of (100[Formula: see text]Pb(Mg[Formula: see text]Nb[Formula: see text]O[Formula: see text]PbTiO 3 (PMN[Formula: see text]PT, [Formula: see text]= 24, 25, 26) ceramics were prepared by solid-state reaction technique using MgNb 2 O 6 precursor. The results of the detailed characterizations reveal that the content of PT has negligible influence on the grain size, and all samples possess the perovskite structure. As the PT content increases, the samples changed from the normal ferroelectric phase to the ergodic relaxor state at room temperature. As a result, PMN–[Formula: see text]PT ceramics are endowed with electro-strain of 0.08% at a relatively low electric field of 2 kV/mm, and effective piezoelectric coefficient of 320 pm/V was obtained. Simultaneously, the PMN–[Formula: see text]PT ceramics have exceptional pyroelectric performance, exhibiting a high pyroelectric coefficient [Formula: see text][Formula: see text]5.5 – 6.3 × 10[Formula: see text] C⋅cm[Formula: see text]⋅K[Formula: see text]. This study demonstrates the great potential of PMN–[Formula: see text]PT for piezoelectric and pyroelectric device applications.