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工程科学与技术:2012,44(2):159-163
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二次烧结对KNN-LS-Bi(Mg0.5Ti0.5)O3无铅压电陶瓷性能的影响
(1.桂林电子科技大学 广西信息材料重点实验室;2.中南大学 材料学院)
Influence of Second Sintering Process on the Performance of KNN-LS-Bi(Mg0.5Ti0.5)O3 Lead-free Piezoceramics
(1.Guangxi Key Lab. of Info Material,Guilin Univ. of Electronic Technol;2.College of Material,Central South Univ.)
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投稿时间:2011-09-12    修订日期:2011-11-22
中文摘要: 采用传统固相烧结法和二次烧结工艺制备了xBi(Mg0.5Ti0.5)O3-0.95K0.5Na0.5NbO3-0.05LiSbO3(xBMT-KNN-LS)无铅压电陶瓷,研究了二次烧结工艺对xBMT-KNN-LS陶瓷性能的影响。结果表明:采用传统的陶瓷烧结工艺所得到的性能为压电常数d33=220pC/N、平面机电耦合系数kp=39.6%、介电损耗tan δ=6.38%。而采用二次陶瓷烧结工艺得到的最佳性能为d33=254 pC/N、kp=37.8%、tan δ=4.81%,因此,二次烧结对该体系的压电性能有显著的影响。
中文关键词: 压电陶瓷  铁电体  烧结
Abstract:The xBi(Mg0.5Ti0.5)O3-0.95K0.5Na0.5NbO3-0.05LiSbO3(xBMT-KNN-LS)lead-free piezoceramics were prepared by traditional solid-state reaction sintering process and second sintering process. The influence of second sintering process on the performance of xBMT-KNN-LS piezoceramics was investigated. The results showed that the best performance of traditional sintering process is d33=220 pC/N,kp= 39.6%,tanδ=6.38%,however,after second sintering the best performance is d33=254 pC/N,kp=37.8%,tanδ=4.81%,thus, second sintering process has significant influence on the piezoelectric properties of xBMT-KNN-LSlead-free piezoceramics.
文章编号:201100806     中图分类号:    文献标志码:
基金项目:广西自然科学基金重点资助项目(2010GXNSFD013007);广西自然科学基金资助项目(2010GXNSFB013010);广西教育厅重点资助项目(201012MS083)
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杨华斌,刘心宇,陈婷,李生杰,石登上.二次烧结对KNN-LS-Bi(Mg0.5Ti0.5)O3无铅压电陶瓷性能的影响[J].工程科学与技术,2012,44(2):159-163.
Yang Huabin,Liu Xinyu,Chen Ting,Li Shengjie,Shi Dengshang.Influence of Second Sintering Process on the Performance of KNN-LS-Bi(Mg0.5Ti0.5)O3 Lead-free Piezoceramics[J].Advanced Engineering Sciences,2012,44(2):159-163.