Journal
INTERMETALLICS
Volume 77, Issue -, Pages 14-22Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2016.07.002
Keywords
Aluminides; Order/disorder transformation; Thermodynamic properties; Density functional theory; Ab-initio calculations; Differential scanning calorimetry
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Funding
- German Research Foundation [A03, A04, SFB 920]
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The heat capacity of Fe2Al5 was calculated using first principle methods and was measured on four compositions between 71.17 at.% Al and 72.17 at.% Al in the temperature range between 235 K and 1073 K. An order/disorder reaction in eta-AlFe was found occurring in the range between 523 K and 553 K. Excellent agreement between the calculated and measured c(p) values were found for the ordered eta-AlFe phase whereas the calculated heat capacity is slightly smaller in comparison to the c(p) of the disordered phase. (C) 2016 Elsevier Ltd. All rights reserved.
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