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J. Korean Ceram. Soc. > Volume 42(11); 2005 > Article
Journal of the Korean Ceramic Society 2005;42(11): 703.
doi: https://doi.org/10.4191/kcers.2005.42.11.703
Infiltration Processing of Ceramic-Metal Composites: The Role of Wettability, Reaction, and Capillary Flow
Asthana Rajiv , Singh Mrityunjay 1, Sobczak Natalia 2
Engineering and Technology Department, University of Wisconsin-Stout
1QSS Group, Inc., NASA Glenn Research Center
2Department of Physical Chemistry of Metals and Alloys, Foundry Research Institute, Krakow, POLAND
ABSTRACT
The infiltration of ceramics by liquid metals to fabricate ceramic-metal composites is discussed. In particular, the complexity of infiltrating ceramics by liquid metals at high temperatures due to interfacial reactions, metal oxidation, pore modulation and closure, and transient capillary forces has been highlighted. The role of these factors is discussed in the context of reactive infiltration with examples from ceramic/metal composites of practical interest. In addition to flow through porous ceramics, reactive penetration of dense ceramics via chemical dissolution and reaction is also discussed.
Key words: Infiltration, Ceramic-Metal Composite, Wettability, Penetration, Capillary flow, Joining
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