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CuO-BaO掺杂对Ba(Ti_(0.91)Zr_(0.09))O_3介电性能的影响
引用本文:陈涛,丁士华,张红霞,宋天秀,杨秀玲.CuO-BaO掺杂对Ba(Ti_(0.91)Zr_(0.09))O_3介电性能的影响[J].电子元件与材料,2008,27(2):33-35.
作者姓名:陈涛  丁士华  张红霞  宋天秀  杨秀玲
作者单位:西华大学,材料科学与工程学院,四川,成都,610039
基金项目:四川省教育厅资助项目 , 西华大学校科研和教改项目
摘    要:采用固相反应法制备了添加1%(质量分数)CuO-BaO混合物的Ba(Ti0.91Zr0.09)O3铁电陶瓷,研究了r(Cu∶Ba)对Ba(Ti0.91Zr0.09)O3铁电陶瓷烧结特性及介电性能的影响。结果表明:随着r(Cu∶Ba)的增加,Cu开始进入晶格,Ba(Ti0.91Zr0.09)O3陶瓷的密度先增加后减小,r(Cu∶Ba)为1.5时,ρ达最大值5.85g/cm3,斜方-四方相变峰出现介电弛豫现象,居里温度向低温方向移动,电滞回线呈现典型弛豫型铁电体的特征。

关 键 词:无机非金属材料  Ba(Ti_(0.9)1Zr_(0.09))O_3  液相烧结  介电弛豫
文章编号:1001-2028(2008)02-0033-03
收稿时间:2007-10-09
修稿时间:2007年10月9日

Effects of CuO-BaO additives on the dielectric properties of Ba(Ti_(0.91)Zr_(0.09))O_3 ceramics
CHEN Tao,DING Shi-hua,ZHANG Hong-xia,SONG Tian-xiu,YANG Xiu-ling.Effects of CuO-BaO additives on the dielectric properties of Ba(Ti_(0.91)Zr_(0.09))O_3 ceramics[J].Electronic Components & Materials,2008,27(2):33-35.
Authors:CHEN Tao  DING Shi-hua  ZHANG Hong-xia  SONG Tian-xiu  YANG Xiu-ling
Affiliation:CHEN Tao,DING Shi-hua,ZHANG Hong-xia,SONG Tian-xiu,YANG Xiu-ling (College of Materials Science & Engineering,Xihua University,Chengdu 610039,China )
Abstract:1%(mass fraction) CuO-BaO doped Ba(Ti0.91Zr0.09)O3 ferroelectric ceramic was prepared by a traditional solid phase reaction, the microstructures was characterized and dielectric properties was determined. The effects of various r(Cu∶Ba) on the sinterability and dielectric properties of Ba(Ti0.91Zr0.09)O3 ferroelectric ceramic was investigated. The results show that with increasing r(Cu∶Ba), Cu ion start to enter the crystal lattice, density of Ba(Ti0.91Zr0.09)O3 first increases then reduces, dielectric relaxation is found at orthorhombic-tetragonal phase transition peak, tC shifted to low temperature, the P-E hysteresis loops exhibit a typical relaxor ferroelectric behavior.
Keywords:non-metallic inorganic material  Ba(Ti0  91Zr0  09)O3  liquid-phase sinter  dielectric relaxation  
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