How can I get the heat of mixing for the Al-C system?

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Alwin David Popular answer

For details

Article A Thermodynamic Analysis of the Al-C-Fe System

Abd Elhamid Mohamed Abd Elhamid

Check this

Solubility of Carbon in Liquid Al and Stability of Al4C3 / December 1994 Journal of Alloys and Compounds 216(1):55–60

DOI: 10.1016/0925-8388(94)91042-1

Alwin David