一维冲击下试样厚度和截面积对挠曲电效应的影响

IF 1.3 4区 物理与天体物理 Q4 PHYSICS, CONDENSED MATTER Ferroelectrics Letters Section Pub Date : 2022-05-04 DOI:10.1080/07315171.2022.2076471
Taotao Hu, Yu Li, Peng Tu
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引用次数: 0

摘要

摘要冲击波在冲击过程中由于挠曲电效应在试样中产生应变梯度和相应的电极化。目前已有学者研究了不同冲击速度的影响规律,但不同试样厚度和横截面积对挠曲电效应的影响仍是空白。在这封信中,我们研究了不同厚度和横截面积的钛酸钡样品在一定冲击速度下的电压变化。结果表明:挠曲电效应引起的最大电压值随厚度的增加而增大,且基本成正比;它随直径的增大而减小,两者成反比。本研究为柔性电传感器的研制奠定了理论基础。
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Influence of sample thickness and cross-sectional area on flexoelectric effect under one-dimensional impact
Abstract The shock wave generates the strain gradient and consequent electric polarization in samples due to the flexoelectric effect during the impact process. At present, some scholars have studied the influence law of different impact velocities, but the influence of different thickness and cross-sectional area of samples on flexoelectric effect is still blank. In this letter, we have studied the voltage variation of barium titanate samples with different thickness and cross-sectional area under a certain impact velocity. The results show that the maximum voltage value caused by flexoelectric effect increases as the thickness increases, which is basically in positive proportion; it decreases with the increase of diameter, which is in inverse proportion. This research will lay a theoretical foundation for the fabrication of flexoelectricity sensor.
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来源期刊
Ferroelectrics Letters Section
Ferroelectrics Letters Section 物理-物理:凝聚态物理
CiteScore
1.10
自引率
0.00%
发文量
1
审稿时长
4.8 months
期刊介绍: Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.
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