Characterization of interfacial reaction in squeeze cast SiCw/Mg composites

The interface between a SiC whisker and a magnesium alloy in a squeeze cast SiCw/AZ91 magnesium matrix composite with acid aluminum phosphate (Al(PO 3) 3) binder was studied by transmission electron microscopy (TEM). Fine and discrete MgO particles adhering to SiC whiskers were observed, which were...

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Bibliographic Details
Published in:Materials letters 2001, Vol.47 (3), p.118-124
Main Authors: Zheng, Mingyi, Wu, Kun, Yao, Congkai
Format: Article
Language:English
Subjects:
Applied sciences
Composite
Exact sciences and technology
Fibre reinforced metals
Interfacial reaction
Magnesium alloy
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
SiC whisker
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Summary:The interface between a SiC whisker and a magnesium alloy in a squeeze cast SiCw/AZ91 magnesium matrix composite with acid aluminum phosphate (Al(PO 3) 3) binder was studied by transmission electron microscopy (TEM). Fine and discrete MgO particles adhering to SiC whiskers were observed, which were formed by reaction between the binder and molten Mg. Definite crystalline orientation relationships between MgO and SiC whiskers were observed at the interface.
ISSN:0167-577X
1873-4979
DOI:10.1016/S0167-577X(00)00221-4