| 低温烧结Ph(Zn1/3Nb2/3)O3基复相陶瓷中的两相共存与介电性能 |
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| 引用本文： | 岳振星,王晓莉,张良莹,姚熹.低温烧结Ph(Zn1/3Nb2/3)O3基复相陶瓷中的两相共存与介电性能[J].无机材料学报,1998,13(2):189-194. |
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| 作者姓名： | 岳振星 王晓莉 张良莹 姚熹 |
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| 作者单位： | 西安交通大学电子材料与器件研究所;西安710049 |
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| 摘 要： | 分别采用氟化物和硼硅玻璃为助烧剂制备了低温烧结ＰＺＮ基复相陶瓷，并借助介电温度特性研究了复相陶瓷中的两相共存与助烧剂的关系。结果表明，添加剂引入的晶格缺陷对复相陶瓷中的两相共存有显著影响。ＬｉＦ助烧剂因引起晶格氧空位促进两相固溶化，而ＭｇＦ２和硼硅玻璃助烧的ＰＺＮ复相陶瓷可保持两相共存。以硼硅玻璃为助烧剂获得了低温烧结、具有Ｘ７Ｒ温度稳定特性的ＰＺＮ基复相陶瓷。
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| 关 键 词： | 铌锌酸铅 弛豫铁电体 介电性 铁电体 复合陶瓷 |
| 收稿时间： | 1997-4-28 |
| 修稿时间： | 1997-6-6 |
Coexistence of Two Phases in Low-firing Ph(Zn1/3Nb2/3)O3 Composite Ceramics and Dielectric Properties |
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| YUE Zhen-Xing,WANG Xiao-Li,ZHANG Liang-Ying,YAO Xi.Coexistence of Two Phases in Low-firing Ph(Zn1/3Nb2/3)O3 Composite Ceramics and Dielectric Properties[J].Journal of Inorganic Materials,1998,13(2):189-194. |
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| Authors: | YUE Zhen-Xing WANG Xiao-Li ZHANG Liang-Ying YAO Xi |
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| Affiliation: | ElectrionicMaterialsResearchLaboratory;XianJiaotongUniversityXian710049China |
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| Abstract: | PZN-based composite ceramics were prepared at lower sintering temperature by using fluorides and borosilicate glass as sintering aids. The correlation between the coexistence of two phases in composite ceramics and sintering aids was studied. The results revealed that the crystal lattice defects caused by additives have detrimental effect on the coexistence of two phases in composites. Incorporation of LiF into PZN crystal lattice promotes the reaction between two phases due to oxygen vacancies, while PZN-based composite ceramics with MgF2 and borosilicate glass aids maintain diphasic microstructure. PZN-based diphasic ceramics with X7R character were obtained at lowe sintering temperature by using borosilicate glass as sintering aids. |
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| Keywords: | lead zinc niobate comosite ceramics relaxor ferroelectrics dielectric properties |
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