| Zn-B玻璃掺杂的(K0.5Na0.44Li0.06)(Nb0.84Ta0.1Sb0.06)O3陶瓷相变及电学性能研究 |
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| 引用本文： | 范桂芬,吕文中,王允祺,汪小红,梁飞.Zn-B玻璃掺杂的(K0.5Na0.44Li0.06)(Nb0.84Ta0.1Sb0.06)O3陶瓷相变及电学性能研究[J].压电与声光,2011,33(3). |
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| 作者姓名： | 范桂芬 吕文中 王允祺 汪小红 梁飞 |
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| 作者单位： | 华中科技大学电子科学与技术系,湖北武汉430074;华中科技大学电子信息功能材料教育部重点实验室(B类)湖北武汉430074 |
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| 基金项目： | New Century Excellent Talents in University，Hubei Provincial Natural Science Foundation(2008CDB283)新世纪人才基金资助项目，湖北省自然科学基金资助项目 |
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| 摘 要： | 研究了Zn-B玻璃掺杂的(K0.5Na0.44Li0.06)(Nb0.84Ta0.1Sb0.06)O3(KNLNTS)陶瓷的制备、相变及电学性能.研究发现,Zn-B玻璃能够有效地促进铌酸钾钠基无铅压电陶瓷的烧结特性.XRD结果显示Zn-B玻璃掺杂的KNLNTS陶瓷为正交-四方共存结构,随掺杂量的增加正交结构相的含量逐渐增加;并且降低烧结温度能够有效地抑制第二相的产生.介电温谱测试结果显示Zn-B玻璃掺杂的KNLNTS陶瓷其居里温度先降后增在x=0.1时达到最小值.在1050℃保温5 h条件下烧结可以获得最佳的压电性能:d33=197 pC/N,kp=0.37,εr=975,tanδ=0.028.
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| 关 键 词： | 压电 无铅 相变 铌酸钾钠 |
Phase Transition and Electrical Properties of (K0.5Na0.44Li0.06 )( Nb0.84Ta0.1Sb0.06)O3 Ceramics with Zn-B Glass Sintering Aid |
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| FAN Guifen,LV Wenzhong,WANG Yunqi,WANG Xiaohong,LIANG Fei.Phase Transition and Electrical Properties of (K0.5Na0.44Li0.06 )( Nb0.84Ta0.1Sb0.06)O3 Ceramics with Zn-B Glass Sintering Aid[J].Piezoelectrics & Acoustooptics,2011,33(3). |
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| Authors: | FAN Guifen LV Wenzhong WANG Yunqi WANG Xiaohong LIANG Fei |
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| Affiliation: | FAN Guifen1,2,LV Wenzhong1,WANG Yunqi1,WANG Xiaohong1,LIANG Fei1,2(1.Dept.of Electronic Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China,2.Key Lab.of Functional Materials for Electronic Information,MOE,China) |
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| Abstract: | The preparation, phase transition and electrical properties of (K0. 5 Na0. 44 Li0. 06 ) ( Nb0. 84 Ta0. 1 Sb0.06 )O3 (KNLNTS) lead-free piezoelectric ceramics with Zn-B glass sintering aid were studied in this paper. It was fount that the addition of Zn-B glass could greatly enhance the sintering properties of KNLNTS ceramics. The XRD results showed that Zn-B doped KNLNTS ceramics had the coexistence structure of the orthorhombic and tetragonal phase, and the orthorhombic phase increased gradually with the amount of Zn-B doping increasing. Lowering the sintering temperature could inhibit the production of the second phase. The dielectric spectrum test results showed that the Curie temperature of the Zn-B-doped KNLNTS ceramics first decreases and then increases, it reaches the minimum at x=0.1. At the sintering temperature of 1 050 ℃ with the soaking time of 5 h, the Zn-B doped KNLNTS-x ceramics obtained the optimum piezoelectric properties of d33 = 197 pC/N, kp =0.37, εr = 975 and tan δ=0.028. |
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| Keywords: | piezoelectric lead-free phase transition sodium potassium niobate |
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