| 钙钛矿型低铅压电陶瓷的制备与性能研究 |
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| 引用本文： | 李紫源,何子均,肖定全,吴文娟,朱建国. 钙钛矿型低铅压电陶瓷的制备与性能研究[J]. 功能材料, 2011, 42(10) |
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| 作者姓名： | 李紫源 何子均 肖定全 吴文娟 朱建国 |
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| 作者单位： | 四川大学材料科学与工程学院,四川成都,610064 |
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| 基金项目： | 国家自然科学基金资助项目(50772068,50972095); 博士点基金资助项目(200806100020,20030610035) |
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| 摘 要： | 采用传统陶瓷工艺制备了钙钛矿型低铅压电陶瓷xPbTi0.4716Zr0.4834（Mn1/3Sb2/3）0.0450O3-（1-x）（K0.485Na0.485Li0.03）NbO3[xPMS-（1-x）KNLN],研究了该陶瓷体系的结构和介电、压电与铁电性能以及这些结构和性能与工艺条件的关系。XRD分析表明,随着烧结温度的升高,陶瓷晶相由焦绿石相与赝立方钙钛矿相共存转变为单一的四方钙钛矿相;SEM分析表明,在烧结过程中产生了以（K0.485Na0.485Li0.03）NbO3组分为主的液相,并在烧结温度提高的过程中产生孔洞出现-孔洞消失的现象;电学测试表明,xPMS-（1-x）KNLN陶瓷具有良好的性能,在x=0.75、烧结温度为1250℃时,陶瓷的性能参数为压电常数d33=182pC/N,机电耦合系数kp=34.5%,居里温度TC=165℃,剩余极化强度Pr=21.2μC/cm2,矫顽场强Ec=1.47kV/mm,介电常数εr=1879,介电损耗tanδ=0.92%。
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| 关 键 词： | 压电陶瓷 微观结构 表面形貌 压电性能 铁电性能 |
Preparation,microstructure,piezoelectric and ferroelectric properties of piezoelectric ceramics with low-lead component |
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| LI Zi-yuan,HE Zi-jun,XIAO Ding-quan,WU Wen-juan,ZHU Jian-guo. Preparation,microstructure,piezoelectric and ferroelectric properties of piezoelectric ceramics with low-lead component[J]. Journal of Functional Materials, 2011, 42(10) |
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| Authors: | LI Zi-yuan HE Zi-jun XIAO Ding-quan WU Wen-juan ZHU Jian-guo |
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| Affiliation: | LI Zi-yuan,HE Zi-jun,XIAO Ding-quan,WU Wen-juan,ZHU Jian-guo(College of Materials Science and Engineering,Sichuan University,Chengdu 610064,China) |
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| Abstract: | xPbTi0.4716Zr0.4834(Mn1/3Sb2/3)0.0450O3-(1-x)(K0.485Na0.485Li0.03)NbO3 [xPMS-(1-x)KNLN] ceramics with low-lead component were prepared by using conventional ceramics method.Microstructure,piezoelectric and ferroelectric properties of the low-lead ceramics with different stoichiometry x fabricated at varied sintering temperature were studied.The XRD patterns of the ceramics show that the microstructure of the ceramics transform from a coexistence state of pyrochlore and pseudo-cubic perovskite to tetragonal ... |
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| Keywords: | piezoelectric ceramics microstructure surface morphology piezoelectric properties ferroelectric properties |
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