纹理 PMN-PZ-PT 和 PMN-PIN-PT 压电陶瓷中随时间变化的残余应变弛豫动力学

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2024-10-10 DOI:10.1016/j.rinp.2024.108007

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引用次数: 0

摘要

晶体纹理铅基压电陶瓷，特别是 Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 (PMN-PZ-PT) 和 Pb(Mg1/3Nb2/3)O3-Pb(In1/2Nb1/2)O3-PbTiO3 (PMN-PIN-PT)，因其增强的场致应变响应而在机电应用中发挥着举足轻重的作用。然而，由于纹理晶粒中嵌入的模板导致残余应变（Sr）增加，影响了应变周期的一致性，从而给精确定位带来了挑战。本研究调查了纹理 PMN-PZ-PT 和 PMN-PIN-PT 压电陶瓷中 Sr 随时间变化的松弛动态，重点是通过实验确定 Sr 完全松弛所需的周期之间的松弛时间。我们的研究结果表明，有纹理压电陶瓷的松弛时间明显长于无纹理压电陶瓷，这主要是由于嵌入模板对畴壁的钉扎作用。这项研究深入揭示了压电陶瓷的应变松弛特性，并强调了时间延迟在设计精密定位系统以提高可靠性方面的重要性。

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Time-dependent relaxation dynamics of remanent strain in textured PMN–PZ–PT and PMN–PIN–PT piezoceramics

Crystallographically textured lead-based piezoceramics, particularly Pb(Mg_1/3Nb_2/3)O₃–PbZrO₃–PbTiO₃ (PMN–PZ–PT) and Pb(Mg_1/3Nb_2/3)O₃–Pb(In_1/2Nb_1/2)O₃–PbTiO₃ (PMN–PIN–PT), play a pivotal role in electromechanical applications due to their enhanced field-induced strain responses. However, challenges in precision positioning arise from heightened remanent strain (S_r) caused by embedded templates in the textured grains, impacting strain cycle consistency due to increased time delay for S_r relaxation. This study investigates the time-dependent relaxation dynamics of S_r in textured PMN–PZ–PT and PMN–PIN–PT piezoceramics, focusing on experimentally determining relaxation time between cycles required for complete S_r relaxation. Our findings reveal that the relaxation time in textured piezoceramics is notably longer than that in their non-textured counterparts, primarily due to pinning of domain walls by embedded templates. This work provides insights into the strain relaxation characteristics of piezoceramics and underscores the importance of time delay in designing precision positioning systems for improved reliability.

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

期刊介绍： Results in Physics is an open access journal offering authors the opportunity to publish in all fundamental and interdisciplinary areas of physics, materials science, and applied physics. Papers of a theoretical, computational, and experimental nature are all welcome. Results in Physics accepts papers that are scientifically sound, technically correct and provide valuable new knowledge to the physics community. Topics such as three-dimensional flow and magnetohydrodynamics are not within the scope of Results in Physics. Results in Physics welcomes three types of papers: 1. Full research papers 2. Microarticles: very short papers, no longer than two pages. They may consist of a single, but well-described piece of information, such as: - Data and/or a plot plus a description - Description of a new method or instrumentation - Negative results - Concept or design study 3. Letters to the Editor: Letters discussing a recent article published in Results in Physics are welcome. These are objective, constructive, or educational critiques of papers published in Results in Physics. Accepted letters will be sent to the author of the original paper for a response. Each letter and response is published together. Letters should be received within 8 weeks of the article''s publication. They should not exceed 750 words of text and 10 references.