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

页码：214 / 220

页数：7

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