Interaction between MoO3 and metals Te, Cd, Sb |
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Authors: | P. N. Namboodiri S. N. Tripathi |
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Affiliation: | 1. Applied Chemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai
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Abstract: | Eighteen compositions of MoO3-Te at 800 °C and seven of each of MoO3-Cd (at 500 °C) and MoO3-Sb (at 600 °C) were heat treated in vacuum-sealed quartz ampules. The phases of the heat-treated compositions were analyzed using x-ray diffraction (XRD) patterns. The interactions in the three systems are summarized. Three phases in equilibrium are (1) in the MnO3-Te system at 800 °C, Te, Mo4O11, TeMo4O13—(0MoO 3<0 889) and MoO3, Mo4O11, TeMo4O13—(0.889MoO 3<1); (2) in the MoO3_Cd system at 500 °C, Cd, MoO2, CdMoO4—(0MoO 3<0.6667) and MoO3, MoO2, CdMoO4—(0.6667MoO 3<1); and (3) in the MoO3-Sb system at 600 °C, Sb, MoO2, Sb4Mo10O31—(0MoO 3<0.734) and MoO3+MoO2+Sb4Mo10O31 (0.734MoO 3<1). The results lead to construction of ternary phase diagrams: Te-MoO3-TeMo4O13, Cd-MoO3-CdMoO4, and Sb-MoO3-Sb4Mo10O31. |
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