中国物理B ›› 2012, Vol. 21 ›› Issue (11): 116102-116102.doi: 10.1088/1674-1056/21/11/116102
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
武梅梅, 彭杰, 祖勇, 刘荣灯, 胡中波, 刘蕴韬, 陈东风
Wu Mei-Mei (武梅梅), Peng Jie (彭杰), Zu Yong (祖勇), Liu Rong-Deng (刘荣灯), Hu Zhong-Bo (胡中波), Liu Yun-Tao (刘蕴韬), Chen Dong-Feng (陈东风 )
摘要: 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 orthorhombic structure with space group Pnca; compounds with x=1.5 and 1.7 have 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 ℃.
中图分类号: (X-ray diffraction)