Refractories and Industrial Ceramics

, Volume 37, Issue 11, pp 399–403 | Cite as

Mathematical model of pressing double-phase powders

  • V. E. Vernikovskii


A phenomenological equation describing the compressibility of double-phase powders without a liquid that is binder based on continuity theory is suggested. It is established that in the case of a smooth experimental curve the parameters of a unified compressibility equation for all pressing stages can be calculated. The numerical parameters of the equation are determined for six powders with particles of various hardnesses. The greatest deviation of the calculated values of the relative density from the experimental values amounts to 11% in the first pressing stage and does not exceed 2.2 – 6.4% in the other regions of the compressibility curve.


Mathematical Model Relative Density Compressibility Experimental Curve Continuity Theory 
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Copyright information

© Plenum Publishing Corporation 1997

Authors and Affiliations

  • V. E. Vernikovskii
    • 1
  1. 1.St. Petersburg Institute of RefractoriesSt. PetersburgRussia

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