Fine Grinding—Size Distribution, Particle Characterization, and Mechanical Methods

  • Thomas P. Meloy
Part of the Sagamore Army Materials Research Conference Proceedings book series (SAMC, volume 15)


Fine grinding is a complex engineering art about which little is known. The general comminution theories are reviewed. These include comminution of homogeneous substances considering particle shape, and heterogeneous materials broken under uniform stress as well as non-uniform stress. A general theorem is proven, demonstrating that the size distribution in the finer sizes is independent of many parameters that affect the larger size distribution. Recent three-dimensional comminution model work is reviewed, and its implication on the effect of particle characteristics such as shape are discussed. Fine particle grinding by conventional means such as jet and hammer milling are reviewed against the background of modern comminution theory. A discussion of recognitive and non-recognitive properties of fine particles is presented in the light of the need of better particle characterization. Recent work in experimental particle characterization is also reviewed.


Particle Shape Flaw Model Crack Density Particle Characteristic Hammer Mill 
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Copyright information

© Syracuse University Press Syracuse, New York 1970

Authors and Affiliations

  • Thomas P. Meloy
    • 1
  1. 1.Melpar, Inc.Falls ChurchUSA

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