Article ID Journal Published Year Pages File Type
1463088 Ceramics International 2013 5 Pages PDF
Abstract

A SiCp/Al composite was fabricated by the pressureless infiltration of an Al–Mg–Si alloy into the pre-oxidized SiC preform at 1000 °C for one hour. The composite fully infiltrated and a homogenous distribution of SiC particles was confirmed. MgAl2O4 was found as the interfacial reaction product, its formation deriving from the reactions: 2Mg+SiO2=2MgO+Si2Mg+SiO2=2MgO+Si and 2MgO+4Al+3SiO2=2MgAl2O4+3Si2MgO+4Al+3SiO2=2MgAl2O4+3Si. The factors influencing the spontaneous infiltration process were also discussed.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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