title: Reinvestigation of the Cd-Gd phase diagram.
abstract: The complete Cd-Gd equilibrium phase diagram was investigated by a combination of powder-XRD, SEM and DTA. All previously reported phases, i.e., CdGd, Cd2Gd, Cd3Gd, Cd45Gd11, Cd58Gd13, and Cd6Gd, could be confirmed. In addition, a new intermetallic compound with a stoichiometric composition corresponding to "Cd8Gd" was found to exist. It was obtained that "Cd8Gd" decomposes peritectically at 465 °C. Homogeneity ranges of all intermetallic compounds were determined at distinct temperatures. In addition, the maximum solubilities of Cd in the low- and high-temperature modifications of Gd were determined precisely as 4.6 and 22.6 at.%, respectively. All invariant reaction temperatures (with the exception of the formation of Cd58Gd13) as well as liquidus temperatures were determined, most probably, Cd58Gd13is formed in a peritectoid reaction from Cd45Gd11and Cd6Gd at a temperature below 700 °C.
authors.affiliation: Department of Inorganic Chemistry (Materials Chemistry), University of Vienna, 1090 Wien, Austria.
authors.forename: Thomas L
authors.initials: TL
authors.lastname: Reichmann
authors.affiliation: Department of Inorganic Chemistry (Materials Chemistry), University of Vienna, 1090 Wien, Austria.
authors.forename: Herbert
authors.initials: H
authors.lastname: Ipser
keywords: Differential thermal analysis; Diffraction (X-ray); Heat treatment; Intermetallics; Microstructure; Phase transformation