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Preparation of cast aluminum alloy-mica particle compositesA method for making aluminum-mica particle composites is presented in which mica particles are stirred in molten aluminum alloys followed by casting in permanent molds. Magnesium is added either as an alloying element or in the form of pieces to the surface of the alloy melts to disperse up to 3 wt% mica powders in the melts and to obtain high recoveries of mica in the castings. The mechanical properties of the aluminum alloy-mica composite decrease with increasing mica content; however, even at 2.2% it has a tensile strength of 14.22 kg/sq mm with 1.1% elongation, a compression strength of 42.61 kg/sq mm, and an impact strength of 0.30 kgm/sq cm. Cryogenic and self-lubricating bearing are mentioned applications.
Document ID
19800048462
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Deonath, MR.
(Banaras Hindu University Varanasi, India)
Bhat, R. T.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Rohatgi, P. K.
(Indian Institute of Science Bangalore, India)
Date Acquired
August 10, 2013
Publication Date
May 1, 1980
Publication Information
Publication: Journal of Materials Science
Volume: 15
Subject Category
Composite Materials
Distribution Limits
Public
Copyright
Other
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