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Wetting and Reaction Characteristics of Al 2 O 3 /SiC Composite Refractories by Molten Aluminum and Aluminum Alloy
Author(s) -
Xu Jing,
Liu Xingbo,
Barbero Ever,
Hemrick James G,
Peters Mark
Publication year - 2007
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2007.02177.x
Subject(s) - wetting , materials science , sessile drop technique , alloy , contact angle , aluminium , silicon carbide , composite number , metallurgy , carbide , composite material , drop (telecommunication) , refractory (planetary science) , telecommunications , computer science
The reactive wetting behavior in molten aluminum and Al alloy was investigated by the sessile drop method for three alumina‐silicon carbide composites, namely TC, TQ, and MC. The initial contact angle for all the three refractory substrates was obtuse in spite of a gradual decrease with time in the first hour of the experiment. TC showed a higher contact angle than TQ and MC. The difference in wetting properties among these refractories is attributed to their compositional and microstructural variations. The effects of magnesium in the molten Al alloy on the wetting kinetics and the reaction with the refractory substrates are also discussed.