The corresponding defect mechanism could be evaluated from structural data collected with single-crystal XRD. For the phase Cd 3Pr it was found that the lattice parameter a changes linearly with increasing Cd content, following Vegard’s rule. DTA results of alloys located in the adjacent two-phase fields of Cd 2Pr suggested a phase transformation between 893 and 930☌. Additionally, single-crystal X-ray diffraction was employed to investigate structural details of Cd 2Pr it is isotypic to the AlB 2-type structure with a z value of the Cd site of 0.5. The homogeneity range of the high-temperature allotropic modification of Pr could be determined precisely and a limited solubility of 22.1 at.% Cd was derived. The corresponding phase boundaries were determined at distinct temperatures. ![]() ![]() All intermetallic compounds within this system, already reported in literature, could be confirmed: CdPr, Cd 2Pr, Cd 3Pr, Cd 45Pr 11, Cd 58Pr 13, Cd 6Pr and Cd 11Pr. ![]() ![]() The complete Cd-Pr equilibrium phase diagram was investigated with a combination of powder-XRD, SEM and DTA.
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