Achieving ultrahigh piezoelectric coefficient and good temperature stability in (K,Na)NbO3-based laminated ceramic composites

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-03-06 DOI:10.1063/5.0258383

Xudong Chen, Lu Li, Jialiang Zhang, Wenbin Su

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引用次数: 0

Abstract

The (K,Na)NbO3-based ceramics are a promising type of lead-free piezoelectric material, but simultaneously achieving an ultrahigh piezoelectric coefficient d33 and good temperature stability in them is extremely difficult due to the phase transitions. An approach of fabricating the engineered piezoelectric materials of laminated ceramic composites (LCCs) was proposed to break the bottleneck instead. Two or more piezoelectric ceramic layers are stacked in the order of alternatively opposite polarizations and are combined together by electrodes, which are connected as in the cases of bimorph or laminated multilayer ceramic capacitors. Experimentally, a compositional series of (1 − x)(K0.48Na0.52)(Nb0.96Sb0.04)O3–x(Bi0.50Na0.50)ZrO3 (KNNS-xBNZ) ceramics and a textured 0.965(K0.48Na0.52)0.99Li0.01(Nb0.98Sb0.02)O3-0.035(Bi0.50Na0.50)ZrO3 (KNLNS-BNZ) ceramic were used to verify this approach. The four-layer LCC with thin ceramic plates of different KNNS-xBNZ compositions shows an averaged d33 of 1230 pC/N, and temperature stability of d33 changes within ±5% up to 120 °C. The three-layer LCC of KNLNS-BNZ textured ceramic exhibits d33 of 1100 pC/N at room temperature with d33 changes of less than 8.1% up to 190 °C. This work provides an innovative strategy to obtain some unprecedentedly piezoelectric materials with extraordinarily excellent performance thereby getting more possibilities in device applications.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.