Very Low Loss Tangent and High Dielectric Permittivity in Pure-CaCu3Ti4O12 Ceramics Prepared by a Modified Sol-Gel Process

被引：126

作者：

Vangchangyia, Somsack ^{[1
]}

Swatsitang, Ekaphan ^{[1
,2
]}

Thongbai, Prasit ^{[1
,2
]}

Pinitsoontorn, Supree ^{[1
,2
]}

Yamwong, Teerapon ^{[3
]}

Maensiri, Santi ^{[4
]}

Amornkitbamrung, Vittaya ^{[1
,2
]}

Chindaprasirt, Prinya ^{[5
]}

机构：

[1] Khon Kaen Univ, Fac Sci, Mat Sci & Nanotechnol Program, Khon Kaen 40002, Thailand

[2] Khon Kaen Univ, Fac Sci, Dept Phys, Integrated Nanotechnol Res Ctr INRC, Khon Kaen 40002, Thailand

[3] Natl Met & Mat Technol Ctr MTEC, Pathum Thani 12120, Thailand

[4] Suranaree Univ, Inst Sci, Sch Phys, Nakhon Ratchasima 30000, Thailand

[5] Khon Kaen Univ, Dept Civil Engn, Sustainable Infrastruct Res & Dev Ctr, Khon Kaen 40002, Thailand

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2012年 / 95卷 / 05期

关键词：

CACU3TI4O12; CERAMICS; BEHAVIOR;

D O I：

10.1111/j.1551-2916.2012.05147.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a simple strategy to achieve excellent dielectric and nonlinear currentvoltage properties for pureCaCu3Ti4O12 ceramics prepared by a modified solgel method with different calcining conditions. At 1kHz and room temperature, the best CCTO ceramic can exhibit a high dielectric constant (e') of 9516 with a very low dielectric loss, tan d 0.020. The minimum value of tan d is 0.018 at 2.5kHz with e' 9433. High breakdown field of 4032V/cm and nonlinear coefficient of 7.05 were obtained.

引用

页码：1497 / 1500

页数：4

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