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

Thermal expansion properties of Lu2-x FexMo3O12

武梅梅, 彭杰, 祖勇, 刘荣灯, 胡中波, 刘蕴韬, 陈东风   

  1. a China Institute of Atomic Energy, Beijing 102413, China;
    b Experimental Physics Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
    c College of Materials and Photoelectric Technology, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2012-02-21 修回日期:2012-03-15 出版日期:2012-10-01 发布日期:2012-10-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10905095, 11105159, and 11075220) and the National Basic Research Program of China (Grant No. 2010CB833101).

Thermal expansion properties of Lu2-x FexMo3O12

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 )   

  1. a China Institute of Atomic Energy, Beijing 102413, China;
    b Experimental Physics Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
    c College of Materials and Photoelectric Technology, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2012-02-21 Revised:2012-03-15 Online:2012-10-01 Published:2012-10-01
  • Contact: Wu Mei-Mei E-mail:mmwu@ciae.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10905095, 11105159, and 11075220) and the National Basic Research Program of China (Grant No. 2010CB833101).

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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 ℃.

关键词: X-ray diffraction, thermal expansion, crystal structure

Abstract: 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 ℃.

Key words: X-ray diffraction, thermal expansion, crystal structure

中图分类号:  (X-ray diffraction)

  • 61.05.cp
65.40.De (Thermal expansion; thermomechanical effects)