Dielectric properties of CaCu3Ti4O12 prepared by sol-gel self combustion technique

被引：25

作者：

Kumar, C. ^{[1
]}

机构：

[1] Univ Madras, Dept Phys, LN Govt Coll, Ponneri 601204, Tamil Nadu, India

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2011年 / 22卷 / 06期

关键词：

CERAMICS; MICROSTRUCTURE; CONSTANTS;

D O I：

10.1007/s10854-010-0179-7

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The preparation of Calcium copper titanate (CCTO) nanopowder was carried out by a sol-gel self combustion method. The X-ray diffraction analysis indicated that the samples calcined at 800 A degrees C were fully crystallized in the CCTO phase. The results of atomic force microscope showed the particles size of CCTO was in the range of 60-80 nm. The absorption bands corresponding to vibrations of Cu-O, Ti-O-Ti and nu Ca-O were observed at 512, 450 and 562 cm(-1) using FTIR. The samples sintered at 950 A degrees C showed the densities as high as 97% of theoretical density. The grain sizes of sintered pellets were determined by HRSEM. The dielectric properties of prepared samples were studied by LCR meter.

引用

页码：579 / 582

页数：4

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