Low-temperature sintering BCZT-Dy ceramics with low strain hysteresis for actuator application

•Low-temperature sintering was realized in BCZT-xDy ceramics due to adding BCuW.•Densified morphology was due to liquid-phase sintering.•Relaxor ferroelectric characteristic was due to ion substitution and adding BCuW.•Rather large strain and low strain hysteresis at low-electric field were achieved...

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Bibliographic Details
Published in:Materials letters 2025-01, Vol.378, p.137584, Article 137584
Main Authors: Yang, Xinlin, Shen, Yun, Fang, Bijun, Zhang, Shuai, Lu, Xiaolong, Ding, Jianning
Format: Article
Language:English
Subjects:
Ba(Cu0.5W0.5)O3 sintering additive
BCZT-xDy
Electrical properties
Low-temperature sintering
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Summary:•Low-temperature sintering was realized in BCZT-xDy ceramics due to adding BCuW.•Densified morphology was due to liquid-phase sintering.•Relaxor ferroelectric characteristic was due to ion substitution and adding BCuW.•Rather large strain and low strain hysteresis at low-electric field were achieved. Ba(Cu0.5W0.5)O3 (BCuW)-doped [(Ba0.85Ca0.15)1-xDyx](Zr0.1Ti0.9)O3 (BCZT-xDy, x = 0.001, 0.03) ceramics were prepared by conventional ceramic processing via low-temperature sintering technique. Rather pure perovskite structure and densified morphology with irregular nearly spherical-shape grains are achieved in all ceramics due to liquid-phase sintering. All BCuW-doped BCZT-xDy ceramics present apparent dielectric frequency dispersion and relaxor ferroelectric characteristic due to ion substitution and adding BCuW. The ceramics prepared at optimized sintering temperatures have rather large strain and small strain hysteresis, showing prospect application in piezoelectric high-precision actuators.
ISSN:0167-577X
DOI:10.1016/j.matlet.2024.137584