作者:A. Saccone、A.M. Cardinale、S. Delfino、G. Cacciamani、R. Ferro
DOI:10.1016/s0925-8388(00)01378-5
日期:2001.4
Phase equilibria in the R-rich regions of the R-Cu and R-Zn binary systems (R=Pr and Gd) have been investigated by differential thermal analysis, X-ray powder diffractometry, metallographic analysis and quantitative electron probe microanalysis. In these regions, the lowering (DeltaT) of the melting and transformation temperatures of the rare earth metals by addition of copper and zinc resulted in eutectic and catatectic or eutectoidal type reactions. The DeltaT observed in these systems are discussed and compared with those reported in the literature for the binary systems of Pr and Gd with Mg and with the elements from the 9th to the 14th group of the Periodic Table. In order to complete this systematics, a few Pr-rich Pr-Cd alloys have also been prepared and analysed. (C) 2001 Elsevier Science B.V. All rights reserved.