新型无铅BST改性0.995BNKT-0.005LN陶瓷的电气和能量收集性能的改善

IF 2.2 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Asian Ceramic Societies Pub Date : 2023-01-02 DOI:10.1080/21870764.2022.2156668

P. Wannasut, P. Jaiban, P. Jaita, M. Promsawat, O. Khamman, A. Watcharapasorn

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引用次数: 0

摘要

摘要采用两步烧结法制备了新型无铅(1-y)[0.95 bi0.5 (Na0.80K0.20)0.5TiO3-0.005LiNbO3]-y[(Ba0.7Sr0.3)TiO3]或(1-y)[0.95 bnkt -0.005 ln]-y[BST](其中y = 0、0.01、0.02、0.03、0.04和0.05 mol分数)陶瓷。在1125℃下烧结2小时，陶瓷的最佳相对密度为~98%，线收缩率为~18%。x射线衍射图表明，所有陶瓷都具有纯钙钛矿相，并具有菱形和四边形结构共存。添加0.03 mol分数的BST (d 33 = 287 pC/N, d*33 = 440 pm/V, g33 = 13.40 × 10−3 V/mN, FoM = 3.85 pm2/N)改善了0.995BNKT-0.005LN陶瓷的电和能量收集性能。从观察结果来看，0.97[0.995BNKT-0.005LN]-0.03[BST]陶瓷是无铅压电传感器-执行器和能量收集器的理想候选材料。

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Improvement of electrical and energy harvesting properties of new lead-free BST modified 0.995BNKT–0.005LN ceramics

ABSTRACT New lead-free (1-y)[0.995Bi0.5(Na0.80K0.20)0.5TiO3-0.005LiNbO3]-y[(Ba0.7Sr0.3)TiO3] or (1-y)[0.995BNKT-0.005LN]-y[BST] (where y = 0, 0.01, 0.02, 0.03, 0.04 and 0.05 mol fraction) ceramics were fabricated by a conventional sintering method with two calcination steps. All ceramics sintered at 1125°C for 2 hours showed an optimum relative density of ~98% and a linear shrinkage of ~18%. X-ray diffraction patterns indicated that all ceramics possessed a pure perovskite phase with coexisting rhombohedral and tetragonal structures. Electrical and energy harvesting properties of 0.995BNKT–0.005LN ceramics were improved with 0.03 mol fraction BST addition (d 33 = 287 pC/N, d*33 = 440 pm/V, g33 = 13.40 × 10−3 V/mN and FoM = 3.85 pm2/N). From the observed results, the 0.97[0.995BNKT-0.005LN]-0.03[BST] ceramic is a promising candidate for lead-free piezoelelectric sensor-actuator and energy harvester.

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来源期刊

Journal of Asian Ceramic Societies Materials Science-Ceramics and Composites

CiteScore

5.00

自引率

4.30%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Asian Ceramic Societies is an open access journal publishing papers documenting original research and reviews covering all aspects of science and technology of Ceramics, Glasses, Composites, and related materials. These papers include experimental and theoretical aspects emphasizing basic science, processing, microstructure, characteristics, and functionality of ceramic materials. The journal publishes high quality full papers, letters for rapid publication, and in-depth review articles. All papers are subjected to a fair peer-review process.