Structure and microwave dielectric properties of a new niobate Ba3Nd2Ti2 Nb2O15

作     者：Hu, Chang-Zheng Zhu, Wen-Feng Wu, Bo-Lin Zhang, Gui-Ling 

作者机构：Key Lab. of Nonferrous Materials and New Processing Technology Guilin University of Technology Guilin 541004 China Guangxi Key Lab. for Advanced Materials and New Preparation Technology Guilin 541004 China 

出 版 物：《Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology》 (Wuhan Ligong Daxue Xuebao)

年 卷 期：2008年第30卷第1期

页      面：28-31页

核心收录：

主　　题：Dielectric properties New niobate Perovskite-like structure 

摘      要：A new niobate Ba3Nd2Ti2 Nb2O15 was synthesized by high temperature solid state reaction in the BaO-Nd2O3-TiO2- Nb2O5 system. The chemical compositions, crystal structure, microstructure, and microwave dielectric properties of the new compound were characterized. Ba3Nd2Ti2 Nb2O15 crystallizes in trigonal system with space group P3 ml (164) and lattice constants a=5.6532(1) A, c=11.6117(2) A, V=321.377(6) A3, Z=1. The Ba3Nd2Ti2 Nb2O15 ceramic exhibits a high dielectric constant of 40.1, high quality factors (Q) 3390 (at 5.7542 GHz), and low temperature variation of resonant frequency (τf)+12 × 10-6 K-1. Ba3Nd2Ti2 Nb2O15 might be a suitable candidate of high εr microwave dielectric ceramics.