Heat capacity and T-p phase diagram of Cs2NH4GaF6 elpasolite
Idioma
en
Article de revue
Este ítem está publicado en
Solid State Sciences. 2002, vol. 4, n° 1, p. 15-18
Elsevier
Resumen en inglés
Cs2NH4GaF6 prepared by solid-state reaction exhibits at room temperature a cubic FmView the MathML sourcem elpasolite structure with a0=9.167 Å. Calorimetric measurements have shown the presence of a first order phase ...Leer más >
Cs2NH4GaF6 prepared by solid-state reaction exhibits at room temperature a cubic FmView the MathML sourcem elpasolite structure with a0=9.167 Å. Calorimetric measurements have shown the presence of a first order phase transition at T0=161 K. Pressure dependence of the phase transition temperature has been studied by DTA under pressure. The data are analyzed in the framework of orientational disordering of [NH4]+ and [GaF6]3− ions.< Leer menos
Palabras clave en inglés
Fluorides
Elpasolite
Cryolite
Structural phase transition
Adiabatic calorimetry
Pressure
Orígen
Importado de HalCentros de investigación