Study of the ternary system Al–H– RE ( RE = Er, La and Y) in liquid state

Autor: Michel Latroche, Jean-Marc Joubert, Jocelyn Prigent
Přispěvatelé: Institut de Chimie et des Matériaux Paris-Est (ICMPE), Institut de Chimie du CNRS (INC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Constellium Technology Center (C-TEC), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Constellium CRV, CRV Voreppe
Rok vydání: 2017
Předmět:
Zdroj: International Journal of Hydrogen Energy
International Journal of Hydrogen Energy, Elsevier, 2017, 42 (35), pp.22348-22352. ⟨10.1016/j.ijhydene.2017.01.002⟩
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2017.01.002
Popis: Hydrogen is the only gas able to dissolve in aluminum. The solubility S of hydrogen in Al obeys the Sieverts' law and S is much larger in the liquid phase (above 660.4 °C) than in the solid one. This might lead to the formation of porosity during aluminum casting. In the present work, the ternary system Al–H– RE ( RE = Er, La, Y) is investigated. The equilibria between the different phases are determined in the presence of liquid Al, RE and H 2 gas by both experimental measurements and phase diagram calculations. The possible formation of metallic hydrides and the change in the hydrogen solubility S are discussed regarding pressure and temperature determining the thermodynamics of the system.
Databáze: OpenAIRE