| 钇掺杂对BSPT高温压电陶瓷铁电性能的影响 |
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| 引用本文： | 李启寿,肖定全,朱建国. 钇掺杂对BSPT高温压电陶瓷铁电性能的影响[J]. 无机材料学报, 2011, 0(2): 185-190 |
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| 作者姓名： | 李启寿 肖定全 朱建国 |
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| 作者单位： | 中国工程物理研究院;四川大学材料科学与工程学院; |
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| 基金项目： | 国家自然科学基金(60771016)~~ |
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| 摘 要： | 利用传统固相法制备了(1-x)Bi(Sc1-yYy)O3-xPbTiO3(BSYPT-x/y)压电陶瓷,采用XRD、SEM、压电工作站等技术表征了体系的晶体结构、微观组织及其铁电性能.发现随着PbTiO3含量的增加,BYSPT-x/y陶瓷相结构由三方结构逐渐转变为四方结构.体系的准同型相界(MPB)位置随BiYO3含量的增加而移向PbTiO3含量更低的一端.在准同型相界附近的BSYPT0.58/0.15陶瓷的电滞回线出现"束腰"现象,这种现象来源于BSYPT0.58/0.15陶瓷内部产生的正极为O2-,负极为Y3+的缺陷偶极子.
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| 关 键 词： | BSYPT-x/y 高温压电陶瓷 铁电性能 |
Effect of Y-doping on the Ferroelectric Properties of BSPT High-temperature Piezoelectric Ceramics |
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| LI Qi-Shou,,XIAO Ding-Quan,ZHU Jian-Guo. Effect of Y-doping on the Ferroelectric Properties of BSPT High-temperature Piezoelectric Ceramics[J]. Journal of Inorganic Materials, 2011, 0(2): 185-190 |
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| Authors: | LI Qi-Shou XIAO Ding-Quan ZHU Jian-Guo |
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| Affiliation: | LI Qi-Shou1,2,XIAO Ding-Quan2,ZHU Jian-Guo2(1.Chinese Academy of Engineering Physics,Mianyang 621900,China,2.College of Material Science and Engineering,Si-chuan University,Chengdu 610064,China) |
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| Abstract: | (1-x)Bi(Sc1-yYy)O3-xPbTiO3(BSYPT-x/y) ceramics were prepared by the conventional mixed oxide method,and their crystal structure,microstructure,and ferroelectric properties were investigated.XRD analyses show that the crystal structure of BSYPT-x/y ceramics changes from rhombohedral to tetragonal symmetry with in-creasing of PbTiO3 amount.The introduction of BiYO3 into BiScO3-PbTiO3 solid solution would cause a shift of morphotropic phase boundary(MPB) of BSYPT-x/y system from x=0.62,y=0.05 to x=0.56,y=0.20.... |
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| Keywords: | BSYPT-x/y high Curie temperature piezoelectric ceramics ferroelectric properties |
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