Study of Phase and Chemical Composition of Bi1-xNdxFeO3 Powders Derived by Pressureless Sintering

Archives of Metallurgy and Materials

A. Lisinska-Czekaj¹  A. Zarycka¹  D. Czekaj¹  J. Dzik¹ 

[1] UNIVERSITY OF SILESIA, DEPARTMENT OF MATERIALS SCIENCE, 2 SNIEZNA ST., 41-200 SOSNOWIEC, POLAND

关键词: Keywords: BiFeO3 ceramics;    Nd3+ doping;    X-ray phase and structural analysis;   

DOI  :  10.2478/amm-2013-0177

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

In the present paper studies on Bi1-xNdxFeO3 for x =0.1-0.4 are reported. The mixed oxide method followed with pressureless sintering was employed for ceramics fabrication. Thermal behavior of stoichiometric mixtures of simple oxide powders, viz. Bi2O3, Nd2O3 and Fe2O3 was studied by simultaneous thermal analysis. It was found that with an increase in neodymium content the weight loss increased from 0.75% to 3.16% for x =0.1 and x =0.4, respectively. It was found that weight loss took place mainly within two temperature ranges, namely ΔT1 ≈(300-400)0C and ΔT2 ≈(600-800)°C. Bi1-xNdxFeO3 ceramics was studied in terms of its phase composition (X-ray phase analysis) and chemical composition (EDS method) at room temperature. It was found that Bi1-xNdxFeO3 suffered structural phase transition from rhombohedral to orthorhombic symmetry with an increase in neodymium concentration x within the range x =(0.2-0.3).

【 授权许可】

Unknown