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Wetting of ceramic particulates with liquid aluminum alloys: Part I. Experimental techniques

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Abstract

An experimental technique for evaluation of wettability of solid particulates with liquid metal was developed. Uniformly packed powder specimens were prepared with a tamping device specially made for the present experiment, and wetting tests were conducted by pressure infiltration of liquid Al-alloys into the powder specimens. The threshold pressure for infiltration was used as a measure of wettability. With this technique, wettabilities were measured for 10 μm diameter SiC and B4C particulates by several Al-based alloys. Threshold pressures obtained from this technique showed reproducibility to approximately ±7 kPa. Microstructures of infiltrated powder specimens indicated planar front infiltration with no disruption of powder compact during infiltration test and virtually no porosity.

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Authors and Affiliations

  1. Massachusetts Institute of Technology, 02139, Cambridge, MA

    S. Y. Oh (Research Associate, Department of Materials Science and Engineering), J. A. Cornie (Principal Research Associate, Energy Laboratory) & K. C. Russell (Professor of Metallurgy and Nuclear Engineering)

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  1. S. Y. Oh
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  2. J. A. Cornie
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  3. K. C. Russell
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Oh, S.Y., Cornie, J.A. & Russell, K.C. Wetting of ceramic particulates with liquid aluminum alloys: Part I. Experimental techniques. Metall Trans A 20, 527–532 (1989). https://doi.org/10.1007/BF02653932

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  • DOI: https://doi.org/10.1007/BF02653932

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