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Theory of infiltration of a porous medium under the influence of electric current

  • Theory and Technology of Sintering, Thermal, and Chemicothermal Treatment Processes
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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

A theory of stability is developed for a vertical column of a conducting liquid of negligible surface tension under conditions of passage of a direct current through it. A universal relationship is derived for the shape of the surface of the liquid column. It is shown that the area of a section of the liquid column decreases as the position of the section is lowered. A new similarity criterion is proposed, which is defined as the ratio of the hydrostatic pressure to the current-induced electromagnetic pressure. This quantity may be called a dimensionless number of gravitational-electromagnetic hydrostatics. The view is expressed that the detachment of liquid from pore walls and the electromagnetic pressure due to the passage of current intensify the infiltration of a porous medium by liquid metal.

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Literature cited

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Authors and Affiliations

  1. Institute of Materials Science, Academy of Sciences of the Ukrainian SSR, Ukraine

    A. I. Raichenko

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  1. A. I. Raichenko
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Translated from Poroshkovaya Metallurgiya, No. 4(220), pp. 5–9, April, 1981.

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Raichenko, A.I. Theory of infiltration of a porous medium under the influence of electric current. Powder Metall Met Ceram 20, 240–244 (1981). https://doi.org/10.1007/BF00797262

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  • DOI: https://doi.org/10.1007/BF00797262

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