Phase relations, crystal structure, and phase transformation of In1-xNb1-xTi2xO4 (0 ≤ x < 0.45) in In2O3-Nb2O5-TiO2 ternary system
Rapid progress in mobile telecommunication and information technologies is intensively required development of high performance microwave dielectric materials over the past two decades.Currently,crystal structures and microwave dielectric properties of compounds with general formula A3+B4+C5+O6, for example, RENb/TaTiO6 (RE=La-Yb, Y, Sc) ”1, 2”, have been comprehensively investigated, but little information associated with In2O3-Nb2O5-TiO2 ternary system was reported, in which In2O3 has similar physical-chemical properties as RE2O3.In order to explore novel microwave dielectric materials with optimum performance in In2O3-Nb2O5-TiO2 system, the phase relationship of this ternary system was systematically investigated via solid-state reactions in this study.Five three-phase regions, ten two-phase regions, and six single-phase solid solutions (In2TiO5-SS, TiO2-SS, M-In1-xNb1-xTi2xO4 (0 ≤ x ＜ 0.35),O-In1-xNb1-xTi2xO4 (0.35 ＜ x ＜ 0.45), Nb2TiO7-SS, and Nb2O5-SS) were determined by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and electron probe micro-analysis (EPMA).
Liumei Su Xing Fan Gemei Cai Zhanpeng Jin
School of Materials Science and Engineering, Central South University, Changsha, 410083 Education Ministry Key Laboratory of Non-ferrous Materials Science and Engineering, Central South Un
国内会议
桂林
英文
345-346
2015-11-03（万方平台首次上网日期，不代表论文的发表时间）