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On the reaction between aluminum, K2TiF6 and KBF4
Ain-Sham University, Faculty of Engineering, Cairo, Egypt.
Ain-Sham University, Faculty of Engineering, Cairo, Egypt.
Royal Institute of Technology, Department of Materials Processing, Stockholm, Sweden.ORCID iD: 0000-0002-0101-0062
Royal Institute of Technology, Department of Materials Processing, Stockholm, Sweden.
1999 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 292, no 1-2, p. 221-229Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
1999. Vol. 292, no 1-2, p. 221-229
Keywords [en]
Aluminum, Emulsification, Interfaces (materials), Morphology, Potassium compounds, Salts, Globular morphology, Metallic matrix composites
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-16656DOI: 10.1016/S0925-8388(99)00294-7OAI: oai:DiVA.org:hj-16656DiVA, id: diva2:454558
Available from: 2011-11-07 Created: 2011-11-07 Last updated: 2017-12-08Bibliographically approved

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Jarfors, A. E. W.

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