Temperature Response Features of Ferroelectric Ceramics in Electrocaloric Effect Study
IF 0.8
4区 物理与天体物理
Q4 PHYSICS, APPLIED
引用次数: 0
Abstract
Temperature response of a material to an external electric field is the main method for electrocaloric effect study in ferroelectrics. In this work, for 0.65PbFe2/3W1/3O3–0.35PbTiO3 solid solution as a model object, it is shown that with an increase in the electric field strength, current fomentation effect can occur. It leads to formation of local regions of increased conductivity in the sample. The associated thermal effect have short characteristic times, due to the small volume of the filament. They are comparable to the times of the electrocaloric response of the material, and can lead to significant errors in the detection of the electrocaloric effect.
电致发光效应研究中铁电陶瓷的温度响应特性
摘要 材料对外部电场的温度响应是研究铁电体电致冷效应的主要方法。本文以 0.65PbFe2/3W1/3O3-0.35PbTiO3 固溶体为模型对象，研究表明随着电场强度的增加，会产生电流煽风效应。这导致在样品中形成导电率增加的局部区域。由于灯丝体积小，相关热效应的特征时间很短。它们与材料的电致冷反应时间相当，可能导致在检测电致冷效应时出现重大误差。
本文章由计算机程序翻译，如有差异，请以英文原文为准。
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来源期刊
Technical Physics Letters
物理-物理：应用
CiteScore
1.50
自引率
0.00%
发文量
44
审稿时长
2-4 weeks
期刊介绍：
Technical Physics Letters is a companion journal to Technical Physics and offers rapid publication of developments in theoretical and experimental physics with potential technological applications. Recent emphasis has included many papers on gas lasers and on lasing in semiconductors, as well as many reports on high Tc superconductivity. The excellent coverage of plasma physics seen in the parent journal, Technical Physics, is also present here with quick communication of developments in theoretical and experimental work in all fields with probable technical applications. Topics covered are basic and applied physics; plasma physics; solid state physics; physical electronics; accelerators; microwave electron devices; holography.
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