Thermal expansion properties of Lu2-x FexMo3O12

The structures and thermal expansion properties of Lu2-xFexMo3O12 have been investigated by X-ray diffraction （XRD）. XRD patterns at room temperature indicate that compounds Lu2-xFexMo3O12 with x ≤ 1.3 exhibit an orthorhombic structure with space group Pnca; compounds with x = 1.5 and 1.7 have a mon...

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Bibliographic Details
Published in:中国物理B：英文版 2012-11, Vol.21 (11), p.346-351
Main Author: 武梅梅 彭杰 祖勇 刘荣灯 胡中波 刘蕴韬 陈东风
Format: Article
Language:English
Subjects:
Pnca
X-射线衍射
单斜晶系
正交结构
热膨胀性能
热膨胀特性
线性热膨胀系数
衍射图谱
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Summary:The structures and thermal expansion properties of Lu2-xFexMo3O12 have been investigated by X-ray diffraction （XRD）. XRD patterns at room temperature indicate that compounds Lu2-xFexMo3O12 with x ≤ 1.3 exhibit an orthorhombic structure with space group Pnca; compounds with x = 1.5 and 1.7 have a monoclinic structure with space group P21/a. Studies on thermal expansion properties show that the linear thermal expansion coefficients of orthorhombic phase vary from negative to positive with increasing Fe content. Attempts to make zero thermal expansion materials indicate that zero thermal expansion can be observed in Lu1.3Fe0.7Mo3O12 in the temperature range of 200 400 ℃.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/21/11/116102