0.94(Bi0.5Na0.5)TiO3-0.06Ba(Zr0.25Ti0.75)O3陶瓷的制备、表征与热释电性能

兰州理工大学学报 ›› 2022, Vol. 48 ›› Issue (1): 1-7.

• 材料科学与工程 • 下一篇

0.94(Bi_0.5Na_0.5)TiO₃-0.06Ba(Zr_0.25Ti_0.75)O₃陶瓷的制备、表征与热释电性能

张晖¹, 张露尹^1,2, 孔令斌¹, 赵坤^*1

1.兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室, 甘肃兰州 730050;
2.甘肃农业大学理学院, 甘肃兰州 730070

收稿日期:2021-07-13 出版日期:2022-02-28 发布日期:2022-03-09
通讯作者: 赵坤(1984-),男,甘肃会宁人,博士.Email:zhaokun@lut.edu.cn
基金资助:
甘肃省高校创新基金(2020A-018),中国博士后科学基金(2021M693836)

Preparation,characterization and pyroelectric properties of 0.94(Bi_0.5Na_0.5)TiO₃-0.06Ba(Zr_0.25Ti_0.75)O₃ ceramics

ZHANG Hui¹, ZHANG Lu-yin^1,2, KONG Ling-bin¹, ZHAO Kun¹

1. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou Univ. of Tech., Lanzhou 730050, China;
2. College of Science, Gansu Agricultural University, Lanzhou 730070, China

Received:2021-07-13 Online:2022-02-28 Published:2022-03-09

摘要/Abstract

摘要： 以BaCO₃、Na₂CO₃、TiO₂、ZrO₂和Bi₂O₃为原料,通过固相反应法合成了铁电粉末材料0.96(Bi_0.5Na_0.5)TiO₃-0.04Ba(Zr,Ti)O₃(BNT-BZT),采用常压烧结法制备了BNT-BZT陶瓷片.考察压力和烧结温度对陶瓷致密性的影响,并对BNT-BZT粉末和陶瓷片的结构、形貌和成分进行了表征.设计基于BNT-BZT材料的热释电纳米发电机并研究了其性能.结果表明:在压力为7 MPa、烧结温度为1 210 ℃的条件下制备的陶瓷片具有最佳的致密性及较大的晶粒.构建的ITO/BNT-BZT/Ag热释电纳米发电机在周期性制冷和加热条件下,器件输出峰值电流/电压分别达到－18.5 nA/－0.9 V和16.7 nA/0.8 V,证明BNT-BZT材料具有优异的热释电性能.

关键词: BNT-BZT, 固相反应法, 铁电材料, 热释电纳米发电机

Abstract: The ferroelectric powder 0.96(Bi_0.5Na_0.5)TiO₃-0.04Ba(Zr,Ti)O₃(BNT-BZT) was synthesized by the solid-phase reaction method using BaCO₃, Na₂CO₃, TiO₂, ZrO₂ and Bi₂O₃ as raw materials, and the BNT-BZT ceramic plate was prepared by the atmospheric sintering method. The effects of pressure and sintering temperature on the compactness of ceramics were investigated, and the structure, morphology and composition of BNT-BZT powder and ceramic plate were characterized.A pyroelectric nanogenerator based on BNT-BZT ceramicwas designedand its performance was studied. The results showed that the ceramic plate has the best compactness prepared under the conditions of a pressure of 7 MPa and a sintering temperature of 1 210 ℃. Under periodic cooling and heating conditions, the output peak current/voltage of the device reaches －18.5 nA/－0.9 V and 16.7 nA/0.8 V, respectively, which has excellent pyroelectric performance.

Key words: BNT-BZT, solid phase reaction, ferroelectric materials, pyroelectric nanogenerator

中图分类号:

TB383.1

张晖, 张露尹, 孔令斌, 赵坤. 0.94(Bi_0.5Na_0.5)TiO₃-0.06Ba(Zr_0.25Ti_0.75)O₃陶瓷的制备、表征与热释电性能[J]. 兰州理工大学学报, 2022, 48(1): 1-7.

ZHANG Hui, ZHANG Lu-yin, KONG Ling-bin, ZHAO Kun. Preparation,characterization and pyroelectric properties of 0.94(Bi_0.5Na_0.5)TiO₃-0.06Ba(Zr_0.25Ti_0.75)O₃ ceramics[J]. Journal of Lanzhou University of Technology, 2022, 48(1): 1-7.

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0.94(Bi_0.5Na_0.5)TiO₃-0.06Ba(Zr_0.25Ti_0.75)O₃陶瓷的制备、表征与热释电性能

Preparation,characterization and pyroelectric properties of 0.94(Bi_0.5Na_0.5)TiO₃-0.06Ba(Zr_0.25Ti_0.75)O₃ ceramics

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