Journal of Materials Science

, Volume 8, Issue 6, pp 770–776 | Cite as

The cold compaction of several mineral powders

Part 2 The time-dependent deformation
  • P. Lawrence


Four mineral powders with widely different mechanical properties have been studied in prolonged cold compaction. An analysis of the time-dependent deformation has been attempted by splitting the finite strain into two components, one a linear function of time. A single compaction equation has been developed and applied to all four powders. The empirical constants of this equation have been examined, proposals concerning the mechanism of compaction under the prolonged application of pressure have been advanced and a correlation between the empirical parameters and the mechanical constants of the materials has been attempted. Suggestions for future work have been made.


Polymer Mechanical Property Linear Function Compaction Empirical Parameter 
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Copyright information

© Chapman and Hall Ltd 1973

Authors and Affiliations

  • P. Lawrence
    • 1
  1. 1.Department of Applied Mineral Sciences, Houldsworth School of Applied ScienceThe UniversityLeedsUK

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