| 含铅弛豫铁电材料合成过程中的烧录石相 |
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| 引用本文： | 李承恩,薛军民.含铅弛豫铁电材料合成过程中的烧录石相[J].功能材料与器件学报,1996,2(2):71-77. |
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| 作者姓名： | 李承恩 薛军民 |
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| 作者单位： | 中国科学院上海硅酸盐研究所，上海功能材料实验室 |
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| 摘 要： | Ｐｂ（Ｂ１、Ｂ２）Ｏ３型弛豫铁电材料由于其优异的介电性能而日益受到关注，但是，由于烧录石相的存在，很难获得纯钙钛矿相的Ｐｂ（Ｂ１Ｂ２）Ｏ３材料，因而笃这类材料的研究及其应用。本文以ＰＭＮ为例，从动力学和热力学角度阐述了烧录石相的形成原因，并且介绍了几种去除烧录石相的方法。以求对含铅弛豫铁电材料中烧录石相的形成有一个较全面的认识。
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| 关 键 词： | 含铅 弛豫铁电材料 烧录石相 钙钛矿相 |
PYROCHLORE IN SYNTHESIS PROCESS OF LEAD-BASED FERROELECTRIC RELAXOR |
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| LI Chengen,XUE Junming,NI Huanyao,YIN Zhiwen.PYROCHLORE IN SYNTHESIS PROCESS OF LEAD-BASED FERROELECTRIC RELAXOR[J].Journal of Functional Materials and Devices,1996,2(2):71-77. |
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| Authors: | LI Chengen XUE Junming NI Huanyao YIN Zhiwen |
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| Abstract: | Compositions in the perovskite family, having the general formula Pb(B_1,B_2)O_3 and known as ferroelectric relaxors are of considerable interest. However, such materials are difficult to be fabricated without the appearance of a pyrochlore phase.In this paper, recent works on the kinetics and thermodynamics of the perovskite vs pyrochlore formation specially for PMN are analysed, and several methods of preparing pure perovskite phase are presented. |
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| Keywords: | Lead-based ferroelectric relaxor pyrochlore perovskite |
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