Ceramic‐Metal Composite Produced by Melt Infiltration
- 1 January 1990
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 73 (1) , 97-101
- https://doi.org/10.1111/j.1151-2916.1990.tb05097.x
Abstract
A new ceramic‐metal composite with continuous interconnected ceramic and metal phases has been fabricated from sintered aluminum nitride infiltrated with aluminum metal. A dense, lightweight, hard material with high strength has been obtained. Advance of the infiltration front was linear with time. The activation energy of the process was very high (330 kJ/mol), suggesting that a chemical interaction rather than viscous flow was rate‐controlling. The infiltration rate was observed to be inversely proportional to the pore size. Thermal and mechanical properties of the composite were promising.Keywords
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