Effects of Dopants on Phase Formation and Microstructure of Bismuth Sodium Titanate-Potassium Sodium Niobate Ceramics

被引：2
|
作者：
Wongsaenmai, S. [1 ]
Yimnirun, R. [2 ,3 ]
Laoratanakul, P. [4 ]
机构：
[1] Maejo Univ, Fac Sci, Mat Sci Program, Chiang Mai, Thailand
[2] Suranaree Univ Technol, Inst Sci, Sch Phys, Nakhon Ratchasima 30000, Thailand
[3] NANOTECH SUT Ctr Excellence Adv Funct Nanomat, Nakhon Ratchasima 30000, Thailand
[4] Natl Met & Mat Technol Ctr MTEC, Pathum Thani, Thailand
来源：
FERROELECTRICS | 2014年 / 458卷 / 01期
关键词：
BNT-KNN; oxide additive; conventional mixed-oxide; dielectric properties; FREE PIEZOELECTRIC CERAMICS; LEAD-FREE PIEZOCERAMICS; FERROELECTRIC CERAMICS; ELECTRICAL-PROPERTIES;
D O I：
10.1080/00150193.2013.850975
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, the solid solution of (0.93)(Bi0.5Na0.5)TiO3-(0.07)(K0.5Na0.5)NbO3 ceramics were prepared by a conventional mixed-oxide method. The influence of 0.5mol% MnO2, Sb2O5 and Li2O3 addition on phase formation, microstructure and dielectric properties of BNT-KNN has been investigated. It was found that the BNT-KNN ceramics exhibited the perovskite structure with pseudo-cubic symmetry. The microstructure showed grain shape depending additive; the pure BNT-KNN the round shape grains were seen, while with the oxide additive square or rectangular shape grains appeared. The oxide addition into BNT-KNN ceramics resulted in the difference dielectric properties and Curie temperatures.
引用
收藏
页码：214 / 220
页数：7
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