Two-step sintering of new potassium sodium niobate ceramics: a high d33 and wide sintering temperature range

被引：27

作者：

Wu, Jiagang ^{[1
]}

Wang, Yumei ^{[1
]}

机构：

[1] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China

来源：

DALTON TRANSACTIONS | 2014年 / 43卷 / 34期

基金：

美国国家科学基金会;

关键词：

LEAD-FREE CERAMICS; FREE PIEZOELECTRIC CERAMICS; CONSTANT GRAIN-SIZE; FREE PIEZOCERAMICS; BATIO3;

D O I：

10.1039/c4dt01712a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this work, the two-step sintering technique is used to realize a high piezoelectric constant (d(33)) and wide sintering temperature range (T-s) in the 0.955(K0.42Na0.58)(Nb0.96Sb0.04)O-3-0.045-(Bi0.5K0.5)(0.90)Zn0.10ZrO3 lead-free ceramics. Dense microstructures were developed in the ceramics by two-step sintering. In the T-s range of 800-1130 degrees C, the rhombohedral-tetragonal phase boundary was well maintained, and these ceramics possess enhanced dielectric; ferroelectric, and piezoelectric properties. It is of great interest to note that a d(33) of 323-416 pC/N could be attained in a temperature gap range of 330 degrees C. We believe that the two-step sintering could both widen the sintering temperature and obtain a high d(33) for this material system.

引用

页码：12836 / 12841

页数：6

共 44 条

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