The Infiltration Kinetics of Aluminum in Silicon Carbide Compacts.
COLORADO SCHOOL OF MINES GOLDEN CENTER FOR WELDING RESEARCH
Pagination or Media Count:
Although metal matrix composites have been fabricated by various techniques, the most successful are solid state processes such as powder metallurgy and diffusion bonding. Liquid metal processes such as compucasting, pultrusion, and infiltration, while less successful, are potentially more economical. The advantages of producing silicon carbide-aluminum matrix composites by liquid metal infiltration techniques can not be fully realized without an improved understanding of the infiltration behavior and the fibermatrix bonding mechanisms. This paper reports on infiltration models which consider the physical properties of the liquid and preform either porous compact or capillarytube bundle. These properties include viscosity, density, surface tension, and wettability pore shape and size in the case of the porous compact. The models have been assessed in terms of their ability to predict infiltration behavior from known physical properties of the materials.
- Laminates and Composite Materials
- Metallurgy and Metallography