用于致动器的低温烧结低应变滞后 BCZT-Dy 陶瓷

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2024-10-24 DOI:10.1016/j.matlet.2024.137584

Xinlin Yang , Yun Shen , Bijun Fang , Shuai Zhang , Xiaolong Lu , Jianning Ding

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引用次数: 0

摘要

通过低温烧结技术，采用传统陶瓷工艺制备了掺杂 [(Ba0.85Ca0.15)1-xDyx](Zr0.1Ti0.9)O3（BCZT-xDy，x = 0.001，0.03）的 Ba(Cu0.5W0.5)O3 (BCuW) 陶瓷。由于采用了液相烧结技术，所有陶瓷都获得了相当纯净的包晶结构和致密的形态，并具有不规则的近似球形的晶粒。由于离子置换和添加 BCuW，所有掺杂 BCuW 的 BCZT-xDy 陶瓷都具有明显的介电频率色散和弛豫铁电特性。在优化烧结温度下制备的陶瓷具有相当大的应变和较小的应变滞后，显示了在压电高精度致动器中的应用前景。

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

Ba(Cu_0.5W_0.5)O₃ (BCuW)-doped [(Ba_0.85Ca_0.15)_1-xDy_x](Zr_0.1Ti_0.9)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.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive