Fabrication methods of advanced metal-ceramiccomposites often require intimate contact between the ceramicreinforcement and the liquid metal matrix. Particulatereinforcement and infiltration techniques, for example, bothrequire that the liquid metal and ceramic reinforcement be incontact for extended periods of time. The interface formed at themetal-reinforcement surface as result of this contact will imposea certain structure and properties on the fabricated MMC. Thisproject is intended to formulate soar understanding into thephenomena which occurs at the interface between the liquidmetal and ceramic reinforcement. The system under reviewconsists of Al metal with 0 or 10 percent Mg alloy addition andZrO_2 and Al_2O_3 ceramic substrate material. This paper willoutline the liquid metal-reinforcement contact experiments anddescribe the microstructural characterization of the interface.Explanations for the appearance of spinel and intermetallics atthe interface are provided by thermodynamic modeling.
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