Phase transition of (Nd, Sm)AlO3

被引:0
|
作者
Horiuchi, H [1 ]
Saitow, A [1 ]
Tanaka, M [1 ]
Toetsu, S [1 ]
Yoshikawa, A [1 ]
Fukuda, T [1 ]
Mizota, T [1 ]
机构
[1] Hirosaki Univ, Fac Educ, Hirosaki, Aomori 0368560, Japan
来源
JAPAN INSTITUTE OF METALS, PROCEEDINGS, VOL 12, (JIMIC-3), PTS 1 AND 2: SOLID - SOLID PHASE TRANSFORMATIONS | 1999年
关键词
perovskite; phase transition; (Nd-x; Sm1-x)AlO3; rare earth aluminate; X-ray diffraction; DSC;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Solid solution of (Nd-x, Sm1-x)AlO3 was synthesized by a solid state reaction and the structural change caused by the substitution of Nd for Sm was investigated by X-ray powder diffraction at room temperature. Phase transitions from orthorhombic to trigonal forms were also observed by the use of a high-temperature powder X-ray diffraction and a differential scanning calorimetry. The phase transition temperatures T-c are linearly related to the amount of the substitution of Nd for Sm. Thus, T-c and the structural characteristics such as lattice distortion are controllable by an appropriate amount of substitution of Nd for Sm. It is concluded that the phase transitions belong to a first-order transition from the structural relationship between low and high temperature forms.
引用
收藏
页码:1397 / 1400
页数:4
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