Structure and Thermal Expansion Behavior of Dy2-xGdxMo4O15 Solid Solution

M.M. Wu; X.L. Xiao; Y.Z. Cheng; J. Peng; D.F. Chen; Zhong Bo Hu

doi:10.4028/www.scientific.net/KEM.368-372.1665

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 368-372Structure and Thermal Expansion Behavior of...

Structure and Thermal Expansion Behavior of Dy_2-xGd_xMo₄O₁₅ Solid Solution

Abstract:

A new series of solid solutions Dy2-xGdxMo4O15 (x = 0.0-0.9) were prepared. These compounds all crystallize in monoclinic structure with space group P21/c. The lattice parameters a, b, c and unit cell volumes V increase almost linearly with increasing gadolinium content. The intrinsic thermal expansion coefficients of Dy2-xGdxMo4O15 (x = 0.0 and 0.25) were obtained in the temperature range of 25 to 500°C with high-temperature X-ray diffraction. The correlation between thermal expansion and crystal structure was discussed.