Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Materials for Mechanical Engineering》 2009-04
Add to Favorite Get Latest Update

Effect of B Site Substitution on Dielectric Properties of Bi_2(Zn_(1/3)Nb_(2/3))O_7 Based Ceramics

ZHANG Hong-xia,DING Shi-hua,CHEN Tao,SONG Tian-xiu,ZHANG Dong,YANG Xiu-ling(Xihua University,Chengdu 610039,China)  
The Bi2(Zn1/3Nb2/3-xMx)2O7(M was Sn,Zr,Ti) ceramics were prepared by traditional second solid phase reaction method.The effect of B site substitution of Sn4+,Ti4+,Zr4+ on the sintering temperature,microstructure and dielectric properties was investigated by means of XRD,SEM and dielectric property testing analyzer.The results show that the ceramic kept single monoclinic pyrochlore phase when Sn4+,Zr4+ and Ti4+ substitution content was no more than 0.25.The sintering temperature for the density ceramics substituted with Zr4+ and Ti4+ was both 1 000 ℃,but it was 1 020 ℃ for them substituted with Sn4+.The temperature coefficient of dielectric constant decreased gradually with the increase of substitution content of Sn4+,Zr4+.While it increased firstly and then decreased with the increase of substitution content,and its value was always positive.
【Fund】: 四川省教育厅科技基金资助项目(2006C025)
【CateGory Index】: TQ174.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved