Article ID Journal Published Year Pages File Type
1462424 Ceramics International 2012 5 Pages PDF
Abstract

The crystal structure, phase transition and thermal expansion behaviors of solid solutions Sc2−xCrxMo3O12 (0≤x≤2) were investigated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC). At room temperature, samples with x≤0.7 and x≥0.8 crystallize in orthorhombic and monoclinic structures, respectively. DSC result indicates that the phase transition of Sc0.5Cr1.5Mo3O12 from monoclinic to orthorhombic structure occurs at 203.66 °C. The linear thermal expansion coefficient of orthorhombic phases varies from −2.334×10−6 °C−1 to 0.993×10−6 °C−1 when x increases from 0.0 to 1.5. The near-zero linear thermal expansion coefficients of −0.512×10−6 °C−1 and −0.466×10−6 °C−1 are observed for compounds with x=0.5 and 0.7, respectively.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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