The effects of sintering temperature on the properties of (Na0.5K0.5)NbO3-CaTiO3 based lead-free ceramics

被引：58

作者：

Chang, Ren-Chuan

Chu, Sheng-Yuan ^{[1
]}

Lin, Yi-Fang

Hong, Cheng-Shong

Kao, Po-Ching

Lu, Chun-Hsien

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Ctr Micronano Sci & Technol, Tainan 701, Taiwan

[3] Chien Kuo Technol Univ, Dept Elect Engn, Changhua 500, Taiwan

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2007年 / 138卷 / 02期

关键词：

(Na; K)NbO3; CaTiO3; sintering temperature; perovskites; piezoelectric;

D O I：

10.1016/j.sna.2007.05.020

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：

Lead-free (Na0.5K0.5)NbO3 ceramics doped with 0.5 mol% CaTiO3 have been prepared by the conventional mixed-oxide method with sintering temperature at 1040-1120 degrees C in this paper. The samples are characterized by X-ray diffraction analysis and scanning electron microscopy. The dielectric, piezoelectric and ferroelectric properties are also investigated. The results present that the increase of the sintering temperature is very effective in improving the density and electric properties. However, the properties of the samples would be deteriorated as they are sintered over the optimum temperature. The NKN-0.5%CT ceramics show excellent properties with sintering temperature at 1100 degrees C. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：355 / 360

页数：6

共 21 条

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