Effect of Gd2O3 and La2O3 on BaTiO3 -Based Ceramics
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第3期
论文作者：Wang Hongru Wu Xiawan WANG Dapeng Li Lingxia Zhang Zhiping
Key words：rare-earth oxides; Gcl2O3; La2O3; chemical nonhomogenous property; chemical homogeneous property;
Abstract: The addition of rare-earth oxides Gd2O3 and La2O3 to BaTiO3-based ceramics can restrain the growth of grain size, which obtained small grain size below 1 μm and high density. The dielectric constant at room temperature increased and the curve of ε-T was flattened which illustrated that the ferroelectricity of BaTiO3-based ceramics was weakened. In addition, it is illustrated that Gd2O3 leads to chemical nonhomogeneous property, i.e. core-shell structure and La2 O3 leads to chemical homogenous property, which take different effects on capacitance- temperature characteristic.
Wang Hongru1，Wu Xiawan1，WANG Dapeng1，Li Lingxia1，Zhang Zhiping1
(1.School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China)
Abstract:The addition of rare-earth oxides Gd2O3 and La2O3 to BaTiO3-based ceramics can restrain the growth of grain size, which obtained small grain size below 1 μm and high density. The dielectric constant at room temperature increased and the curve of ε-T was flattened which illustrated that the ferroelectricity of BaTiO3-based ceramics was weakened. In addition, it is illustrated that Gd2O3 leads to chemical nonhomogeneous property, i.e. core-shell structure and La2 O3 leads to chemical homogenous property, which take different effects on capacitance- temperature characteristic.
Key words:rare-earth oxides; Gcl2O3; La2O3; chemical nonhomogenous property; chemical homogeneous property;
【全文内容正在添加中】
