Microstructure and Piezoelectric Properties of (Na0.85K0.15)0.5Bi0.5TiO3Lead-free Ceramics Prepared by Tape Casting Processing

doi:10.3724/SP.J.1077.2006.01134

Abstract

Abstract: (Na_0.85K_0.15)_0.5Bi_0.5TiO₃lead-free piezoelectric ceramics were prepared by tape casting process. The effects of heat-treatment on the microstructure and piezoelectric properties of ceramics were investigated. The results show that the ceramics with densified microstructure can be prepared by tape casting process.
The microstructure of cross section is not the same dense as that of surface. There are two phases coexist in the ceramics: perovskite phase and K₂Ti₆O₁₃ phase whose appearance is whisker shape. It is difficult to eliminate K₂Ti₆O₁₃ by heat-treatment process. But heat-treatment will improve the microstructure of cross section effectively and decrease piezoelectric constant d₃₃, dielectric constant and ε dielectric loss tanδ . (Na_0.85K_0.15)_0.5Bi_0.5TiO₃(lead-free piezoelectric ceramics show obvious characteristic of ferroelectrics with coercive electric field E_c 2680V/mm and remnant polarization P_r 36.6μC/cm², d₃₃, K_p and Q_m of ceramics are 113pC/N, 0.27 and 154 respectively.

Key words: lead-free piezoelectric ceramics, microstructure, tape casting, piezoelectric properties

GAO Feng,ZHANG Chang-Song,ZHAO Ming,WANG Wei-Min,TIAN Chang-Sheng. Microstructure and Piezoelectric Properties of (Na_0.85K_0.15)_0.5Bi_0.5TiO₃Lead-free Ceramics Prepared by Tape Casting Processing[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2006.01134.

[1]	FAN Wugang, CAO Xiong, ZHOU Xiang, LI Ling, ZHAO Guannan, ZHANG Zhaoquan. Anticorrosion Performance of 8YSZ Ceramics in Simulated Aqueous Environment of Pressurized Water Reactor [J]. Journal of Inorganic Materials, 2024, 39(7): 803-809.
[2]	CHEN Qian, SU Haijun, JIANG Hao, SHEN Zhonglin, YU Minghui, ZHANG Zhuo. Progress of Ultra-high Temperature Oxide Ceramics: Laser Additive Manufacturing and Microstructure Evolution [J]. Journal of Inorganic Materials, 2024, 39(7): 741-753.
[3]	JIANG Lingyi, PANG Shengyang, YANG Chao, ZHANG Yue, HU Chenglong, TANG Sufang. Preparation and Oxidation Behaviors of C/SiC-BN Composites [J]. Journal of Inorganic Materials, 2024, 39(7): 779-786.
[4]	ZHENG Yawen, ZHANG Cuiping, ZHANG Ruijie, XIA Qian, RU Hongqiang. Fabrication of Boron Carbide Ceramic Composites by Boronic Acid Carbothermal Reduction and Silicon Infiltration Reaction Sintering [J]. Journal of Inorganic Materials, 2024, 39(6): 707-714.
[5]	XUE Yifan, LI Weijie, ZHANG Zhongwei, PANG Xu, LIU Yu. Process Control of PyC Interphases Microstructure and Uniformity in Carbon Fiber Cloth [J]. Journal of Inorganic Materials, 2024, 39(4): 399-408.
[6]	SUN Chuan, HE Pengfei, HU Zhenfeng, WANG Rong, XING Yue, ZHANG Zhibin, LI Jinglong, WAN Chunlei, LIANG Xiubing. SiC-based Ceramic Materials Incorporating GNPs Array: Preparation and Mechanical Characterization [J]. Journal of Inorganic Materials, 2024, 39(3): 267-273.
[7]	ZHENG Jiaqian, LU Xiao, LU Yajie, WANG Yingjun, WANG Zhen, LU Jianxi. Functional Bioadaptability in Medical Bioceramics: Biological Mechanism and Application [J]. Journal of Inorganic Materials, 2024, 39(1): 1-16.
[8]	HE Danqi, WEI Mingxu, LIU Ruizhi, TANG Zhixin, ZHAI Pengcheng, ZHAO Wenyu. Heavy-Fermion YbAl₃ Materials: One-step Synthesis and Enhanced Thermoelectric Performance [J]. Journal of Inorganic Materials, 2023, 38(5): 577-582.
[9]	WU Shuang, GOU Yanzi, WANG Yongshou, SONG Quzhi, ZHANG Qingyu, WANG Yingde. Effect of Heat Treatment on Composition, Microstructure and Mechanical Property of Domestic KD-SA SiC Fibers [J]. Journal of Inorganic Materials, 2023, 38(5): 569-576.
[10]	XIE Jiaye, LI Liwen, ZHU Qiang. Contrastive Study on in Vitro Antibacterial Property and Biocompatibility of Three Clinical Pulp Capping Agents [J]. Journal of Inorganic Materials, 2023, 38(12): 1449-1456.
[11]	LI Jianbo, TIAN Zhen, JIANG Quanwei, YU Lifeng, KANG Huijun, CAO Zhiqiang, WANG Tongmin. Effects of Different Element Doping on Microstructure and Thermoelectric Properties of CaTiO₃ [J]. Journal of Inorganic Materials, 2023, 38(12): 1396-1404.
[12]	WU Dongjiang, ZHAO Ziyuan, YU Xuexin, MA Guangyi, YOU Zhulin, REN Guanhui, NIU Fangyong. Direct Additive Manufacturing of Al₂O₃-TiC_p Composite Ceramics by Laser Directed Energy Deposition [J]. Journal of Inorganic Materials, 2023, 38(10): 1183-1192.
[13]	ZHANG Ye, ZENG Yuping. Progress of Porous Silicon Nitride Ceramics Prepared via Self-propagating High Temperature Synthesis [J]. Journal of Inorganic Materials, 2022, 37(8): 853-864.
[14]	XIA Qian, SUN Shihao, ZHAO Yiliang, ZHANG Cuiping, RU Hongqiang, WANG Wei, YUE Xinyan. Effect of Boron Carbide Particle Size Distribution on the Microstructure and Properties of Reaction Bonded Boron Carbide Ceramic Composites by Silicon Infiltration [J]. Journal of Inorganic Materials, 2022, 37(6): 636-642.
[15]	HONG Du, NIU Yaran, LI Hong, ZHONG Xin, ZHENG Xuebin. Tribological Properties of Plasma Sprayed TiC-Graphite Composite Coatings [J]. Journal of Inorganic Materials, 2022, 37(6): 643-650.

Microstructure and Piezoelectric Properties of (Na_0.85K_0.15)_0.5Bi_0.5TiO₃Lead-free Ceramics Prepared by Tape Casting Processing

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments