Development of a mixer to fabricate particle stabilized aluminium matrix emulsions and monotectic alloys

Aluminum matrix monotectic alloys with a homogeneous distribution of the second phase droplets can be obtained in large ingots, if the droplets are stabilized by solid particles of optimized wettability at the interface of the two, immiscible liquid metals. In this paper, Al‐matrix emulsions with Cd...

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Bibliographic Details
Published in:Materialwissenschaft und Werkstofftechnik 2012-04, Vol.43 (4), p.345-349
Main Author: Budai, I.
Format: Article
Language:English
Subjects:
aluminium
cadmium
emulsification
Emulsionsbildung
Mischer
mixer
monotectic alloys
monotektische Legierungen
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Summary:Aluminum matrix monotectic alloys with a homogeneous distribution of the second phase droplets can be obtained in large ingots, if the droplets are stabilized by solid particles of optimized wettability at the interface of the two, immiscible liquid metals. In this paper, Al‐matrix emulsions with Cd‐rich droplets, stabilized by Al4Sr intermetallic particles are prepared, based on our previous paper. The new information in the present paper is the development of a new type of a mixer, allowing increased rotational speed, and hence, more efficient emulsification without the danger of mixing the liquid metals out of the crucible. As the comparative experiments proved, the ratio of emulsified Cd‐rich liquid was found to increase considerably when the old mixer was replaced by the new one. Particularly, there is no 1‐phase Cd‐rich sedimentation found at the bottom of the crucible when the mixer of the new design is applied.
ISSN:0933-5137
1521-4052
DOI:10.1002/mawe.201200952