无机材料学报2018，Vol.33Issue(1)：87-92,6.DOI:10.15541/jim20170144
(1-x)K0.48Na0.52NbO3-xBi0.45Nd0.05(Na0.92Li0.08)0.5ZrO3 无铅压电陶瓷相结构及压电性能
Phase Structure and Piezoelectric Property of (1–x)K0.48Na0.52NbO3-xBi0.45Nd0.05(Na0.92Li0.08)0.5ZrO3 Lead-free Piezoceramics
摘要
Abstract
To enhance the piezoelectric properties and maintain relatively higher Curie temperature (TC), (1–x)K0.48Na0.52NbO3-x Bi0.45Nd0.05(Na0.92Li0.08)0.5ZrO3 ((1–x) KNN-xBNNLZ) ceramics were prepared by conven-tional solid-state method. The effects of BNNLZcontent on the phase structure and electrical properties of the ce-ramics were investigated in details. The results show that all ceramic samples exhibit higher TC(>300℃). With the increase of BNNLZ content, both orthorhombic-tetragonal phase transition temperature (TO-T) and rhombo-hedral-orthorhombic phase transition temperatures (TR-O) shift to room temperature simultaneously, and finally the R-T phase coexistence is constructed near room temperature in the compositions range of 0.05<x<0.07. The phase transitions of the ceramics caused by BNNLZ addition lead to values ofd33,εr,Pr, andkp increase firstly and then decrease. The ceramic withx=0.06 exhibits optimal properties:d33=313 pC/N,kp=42％,Pr=25.48μC/cm2,εr=1353, tanδ=2.5％, together with a higher TC of 327℃.关键词
KNN/压电性能/相界构建Key words
potassium-sodium niobate (KNN)/piezoelectric properties/phase boundary construction分类
信息技术与安全科学引用本文复制引用
赵林,马健,张俊,吴波,肖定全..(1-x)K0.48Na0.52NbO3-xBi0.45Nd0.05(Na0.92Li0.08)0.5ZrO3 无铅压电陶瓷相结构及压电性能[J].无机材料学报,2018,33(1):87-92,6.基金项目
西南民族大学中央高校基本科研业务费专项资金项目(2015NZYQN48) Fundamental Research Funds for the Central Universities, Southwest Minzu University (2015NZYQN48) （2015NZYQN48）
