On the reaction between aluminium, K2TiF6 and KBF4

The reaction between molten Al and KBF4 and K2TiF6 was analyzed. Additions of the two salts separately, consecutively and simultaneously were made at 800 and 1000 °C. The phases formed were identified and their morphology investigated. When adding K2TiF6 emulsification of the salt occurs. Residual...

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Published in:Journal of alloys and compounds 1999-11, Vol.292 (1-2), p.221-229
Main Authors: EL-MAHALLAWY, N, TAHA, M. A, JARFORS, A. E. W, FREDRIKSSON, H
Format: Article
Language:English
Subjects:
Aluminum
Cross-disciplinary physics: materials science
rheology
Dispersion-, fiber-, and platelet-reinforced metal-based composites
Emulsification
Exact sciences and technology
Globular morphology
Interfaces (materials)
Materials science
Metallic matrix composites
Morphology
Other materials
Physics
Potassium compounds
Salts
Specific materials
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description The reaction between molten Al and KBF4 and K2TiF6 was analyzed. Additions of the two salts separately, consecutively and simultaneously were made at 800 and 1000 °C. The phases formed were identified and their morphology investigated. When adding K2TiF6 emulsification of the salt occurs. Residual salt containing K, Ti, Al and O was found in addition to slag containing K, Al and O. In an emulsified region, a new globular morphology of Al3Ti-type was found. No evidence of emulsification of KBF4 was found. This implies that the two salts react individually with Al. A new morphology of AlB2, in the form of thin plates, formed presumably at the salt/aluminum interface, was also found.
doi_str_mv 10.1016/S0925-8388(99)00294-7
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ispartof Journal of alloys and compounds, 1999-11, Vol.292 (1-2), p.221-229
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subjects Aluminum
Cross-disciplinary physics: materials science
rheology
Dispersion-, fiber-, and platelet-reinforced metal-based composites
Emulsification
Exact sciences and technology
Globular morphology
Interfaces (materials)
Materials science
Metallic matrix composites
Morphology
Other materials
Physics
Potassium compounds
Salts
Specific materials
title On the reaction between aluminium, K2TiF6 and KBF4
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