Formation enthalpy of intermetallic phases from Al–Fe system measured with solution calorimetric method

Autor:	Zbigniew Moser, Adam Dębski, Władysław Gąsior
Rok vydání:	2012
Předmět:	Diffraction Materials science Mechanics of Materials Mechanical Engineering Phase (matter) Enthalpy Materials Chemistry Metals and Alloys Analytical chemistry Intermetallic Thermodynamics General Chemistry Crystal structure
Zdroj:	Intermetallics. 24:99-105
ISSN:	0966-9795
Popis:	The solution calorimetric method was used for the determination of the formation enthalpy of Al 2 Fe and Al 5 Fe 2 intermetallic phases. The phases were prepared in a very pure Ar atmosphere by melting the calculated amounts of Al and Fe in alumina crucibles. Their crystal structure was confirmed with the X-ray diffraction method. A very low amount of Al 5 Fe 2 phase was found in the Al 2 Fe phase. The calorimetric experiments were carried out using an Al bath at temperature 1271 K. The formation enthalpies of the Al 5 Fe 2 and Al 2 Fe phases obtained at room temperature were −30.5 and −27.8 kJ/mol of atoms, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c5ec87970d5fa10c556ffb75026c7622 https://doi.org/10.1016/j.intermet.2012.02.001 Zobrazit plný text záznamu Full Text from ScienceDirect