Enhanced Performance of Alkaline Niobate-based Ceramics Manufactured by Two-step Sintering

摘要：

　　In this paper,a typical Li-and Ta/Sb-modified alkaline niobate-based ceramics were prepared by conventional sintering and two-step sintering respectively.The ceramics sintered by two-step sintering exhibited better electrical properties than the samples prepared by conventional sintering.The related mechanisms were also discussed in terms of phase-structures and microstructures.Results show that two-step sintering can restrain the volatilization of alkali elements and compositional segregation during the densification of alkaline niobate-based ceramics,and enhance the electrical properties accordingly.Therefore,two-step sintering is a promising approach to achieve high performance alkaline niobate-based ceramics.

关键词： Two-step sintering Conventional sintering Alkaline niobate

作者: Jian Fang Xiaohui Wang Longtu Li

作者单位: State Key Lab of New Ceramics and Fine Processing,Department of Materials Science and Engineering,Tsinghua University,Beijing,100084 China

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 372-376

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）