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Determination of pore size of filter materials from nonspherical powders

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    For porous materials from nonspherical metal powders, the order of pore sizes determined by different techniques is Dmicr > Dmax> Dhydr.

  2. 2.

    The tortuosity coefficient of the pore passages of materials produced by sintering fine powder with a filler increases with increase in the particle size of the filler.

  3. 3.

    For a porous material from nonspherical powder, filtration fineness (the maximum size of escaping particles) is much less than Dmax, the difference between the two magnitudes becoming greater with increase in the specific surface area of the material.

  4. 4.

    The magnitude Dmax cannot serve as a filtration fineness characteristic of a porous material from nonspherical powder. It would appear that the filtration fineness of filters from nonspherical powders depends, in a general case, on the specific surface area of the material.

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Literature cited

  1. A. A. Gatushkin and S. M. Solonin, Poroshkovaya Met., No. 7 (1966).

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Authors and Affiliations

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

    S. M. Solonin, N. P. Sleptsova & L. I. Chernyshev

Authors
  1. S. M. Solonin
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  2. N. P. Sleptsova
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  3. L. I. Chernyshev
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Additional information

Translated from Poroshkovaya Metallurgiya, No. 1 (97), pp. 38–44, January, 1971.

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Solonin, S.M., Sleptsova, N.P. & Chernyshev, L.I. Determination of pore size of filter materials from nonspherical powders. Powder Metall Met Ceram 10, 30–34 (1971). https://doi.org/10.1007/BF00798043

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  • DOI: https://doi.org/10.1007/BF00798043

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