Patro, Debdutt and Jayaram, Vikram (2008) Kinetics of Pressureless Infiltration of Al-Mg Melts into Porous Alumina Preforms. In: Metallurgical and Materials Transactions B, 39 (1). pp. 108-115.
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Effective “hydrodynamic” radii governing infiltration kinetics of reactive Al-Mg melts into alumina preforms were found to be three orders of magnitude smaller than the average pore size of the packed bed and also smaller compared with the kinetics for a nonreactive system. A sinusoidal capillary model was developed to predict flow kinetics within the packed bed. For the reactive system, two factors were ascribed for additional melt retardation: (1) different intrinsic wettabilities of the two liquids on alumina, thereby leading to significantly different “effective” local contact angles; and (2) local solute depletion from the meniscus, which was incorporated as a time-dependent contact angle.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to The Minerals, Metals & Materials Society.|
|Department/Centre:||Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)|
|Date Deposited:||24 Mar 2010 07:21|
|Last Modified:||19 Sep 2010 05:58|
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