The Characteristics of Ferroelectric Sr0.4Ba0.6Nb2-xVxO6 Dielectrics
In this study,it would be interesting to investigate ceramic material based on Sr0.4Ba0.6Nb2O6 composition,V2O5 was used to substitute Nb2O5 to form the compositions of Sr0.4Ba0.6Nb2-xVxO6,where 0 ≤ x ≤ 0.3.The prepared Sr0.4Ba0.6Nb2-xVxO6 ceramics were sintered from 1060℃ to 1300℃,and the needed sintering temperatures were dependent on V2O5 content.The SEM micrographs showed that even 1220℃ was used as the sintering temperature of Sr0.4Ba0.6Nb2O6 ceramics,the pores were still observed.The crystal intensities of some (h,k,l) planes,for example (3,2,0) and (5,5,0) planes,apparently increased with the increase of V2O5 content and slightly decreased with the increase of sintering temperatures.The temperature-dependent dielectric characteristics were measured from 25℃ to 300℃ at 1MHz as a function of sintering temperatures and V2O5 content.The studied results would show that the sintering temperatures and V2O5 content also had large influence on the maximum dielectric constants (revealed at Curie temperatures) and the temperature-dielectric curves of Sr0.4Ba0.6Nb2-xVxO6 ceramics.
Grain growth X-ray diffraction Sr0.4Ba0.6Nb2-xVxO6 Dielectric properties
Yao-Sheng Yang Wen-Cheng Tzou Guan-Hung Wu Cheng-Fu Yang Chern-Hwa Chen Chien-Chen Diao
Department of Electronic Engineering,Kao Yuan University,Kaohsiung,Taiwan Department of Electro-Optical Engineering,Southern Taiwan University of Technology,Tainan,Taiwan Department of Chemical and Materials Engineering,National University of Kaohsiung,Kaohsiung,Taiwan Department of Civil and Environmental Engineering,National University of Kaohsiung,Kaohsiung,Taiwan
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
136-139
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）