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Communications: The Pressure of Al^sub 2^O and Al in Equilibrium with a Al^sub 2^O^sub 3^-Al^sub 4^C^sub 3^ (Saturated) Slag at 1950 °C to 2020 °C
- Article from:
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Metallurgical and Materials Transactions
- Article date:
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October 1, 2004
- Author:
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;
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Copyright informationCopyright Minerals, Metals & Materials Society and ASM International Oct 2004. Provided by ProQuest LLC. (Hide copyright information)
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Knowledge of the vapor pressures of Al^sub 2^O and Al in equilibrium with Al^sub 4^C^sub 3^-Al^sub 2^O^sub 3^ slags at high temperatures (1950 °C to 2020 °C) is critical for evaluation and control of carbothermic reduction for producing aluminum, and those pressures were measured in this study. The slags were heated and held at temperature and the CO evolved was continuously measured with a mass spectrometer along with the weight loss and weight of condensates. From this, the pressures were computed. The measured values are in reasonable agreement with thermodynamic predictions.
There have been no direct measurements of the activities in the Al^sub 2^O^sub 3^-Al^sub 4^C^sub 3^ system or ...
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