DIELECTRIC-PROPERTIES OF SOL-GEL DERIVED LEAD MAGNESIUM NIOBATE CERAMICS

被引：23
|
作者：
RAVINDRANATHAN, P
KOMARNENI, S
BHALLA, AS
ROY, R
机构：
[1] Materials Research Laboratory, The Pennsylvania State University, PA, 16802, University Park
来源：
FERROELECTRICS LETTERS SECTION | 1990年 / 11卷 / 06期
关键词：
D O I：
10.1080/07315179008200828
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Lead magnesium niobate (PMN) was prepared by a sol-gel 1990 Gordon and Breach Science Publishers S.A. technique. The gel calcined at 850'C for 2hr resulted in 98 of perovskite phase. About 98% of the theoretical density was achieved for pellets sintered at 1200°C for 4hr. The room temperature dielectric constant of the pellets sintered at 1250°C for 4hr showed a maximum value of 11686 at 1 KHz. The dielectric constant increased with increasing grain size of the samples sintered at various temperatures. © 1990, Taylor & Francis Group, LLC. All rights reserved.
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页码：137 / 144
页数：8
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