| LaMO_3-AB_2O_4复合陶瓷材料及其复合机制的研究 |
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| 引用本文： | 章天金,刘树英,周东祥.LaMO_3-AB_2O_4复合陶瓷材料及其复合机制的研究[J].湖北大学学报(自然科学版),2000(3). |
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| 作者姓名： | 章天金 刘树英 周东祥 |
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| 作者单位： | 湖北大学物理学与电子技术学院!湖北武汉430062(章天金)，华中科技大学电子科学与技术系!湖北武汉430074(刘树英，周东祥) |
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| 摘 要： | 研究了钙钛矿型 (ABO3 )陶瓷与尖晶石型 (AB2 O4 )陶瓷材料的复合机制 ,实验发现 :钙钛矿型陶瓷与尖晶石型陶瓷材料以一定的比例进行复合 ,在高温烧结过程中有离子迁移发生 ,离子迁移主要在B位间进行 .复合体电导率与离子迁移后所形成的结构状态有关 ,当复合体产生高电导结构时 ,复合体电阻率降低 ,反之 ,电阻率增高 .
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| 关 键 词： | 钙钛矿 尖晶石 复合电子陶瓷 复合机制 离子迁移 |
Study on composite mechanism of LaMO_3-AB_2O_4 composite ce ramics |
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| Zhang Tianjin-,Liu Shuying-,Zhou Dongxiang-.Study on composite mechanism of LaMO_3-AB_2O_4 composite ce ramics[J].Journal of Hubei University(Natural Science Edition),2000(3). |
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| Authors: | Zhang Tianjin- Liu Shuying- Zhou Dongxiang- |
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| Institution: | Zhang Tianjin-1,Liu Shuying-2,Zhou Dongxiang-2 |
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| Abstract: | The compose mechanism of perovskite (ABO 3) and sp inel (AB 2O 4) system was investigated. It shows that ions migration exited in per ovsk ite (ABO 3) and spinel (AB 2O 4) composes ceramics sintered at high temperat ure, an d the ions migration took place between B sites and B sites. The conductivity of compose ceramics was related to the structure states which formed by ion migrat ion. The resistivity of compose ceramics reduced when the high conductivity phas e formed, otherwise, the resistivity of compose ceramics increased. |
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| Keywords: | perovskite spinel compose ceramics compose mechani sm ion migration |
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