Effect of CeO2 and CuO sintering additives on the properties of KNN-based piezoelectric ceramics

被引：9
作者：
Li, Chenwei [1 ]
Lu, Zhenlin [1 ]
机构：
[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian, Shaanxi, Peoples R China
来源：
MATERIALS TECHNOLOGY | 2018年 / 33卷 / 07期
关键词：
Sodium niobate; barium zirconate titanate; lead-free piezoelectric ceramics; electrical properties; sintering aids; MICROSTRUCTURE; BEHAVIOR;
D O I：
10.1080/10667857.2018.1460706
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The 0.95 (K-0.5 Na-0.5)NbO3-0.05Ba(Zr0.05Ti0.95)O-3-xCeO(2)/yCuO ceramics were prepared by traditional ceramic method. The effects of sintering additives on the microstructure and electric properties of the ceramics were investigated. The results indicate that CeO2 and CuO additives can lower the sintering temperature and effectively improve the densification and electric properties of the ceramics. CuO is more appropriate than CeO2 as a sintering aid for preparing 0.95(K0.5Na0.5) NbO3-0.06Ba(Zr0.05Ti0.95)O-3 ceramics that possess optimum properties: d(33) = 82 pC/N, k(p) = 52%, epsilon(r) = 1300, tan delta = 0.0208 and T-c = 295 degrees C.
引用
收藏
页码：474 / 478
页数：5
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