Particle and Granule Parameters Affecting Compaction Efficiency in Dry Pressing |
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Authors: | Jingmin Zheng James S. Reed |
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Affiliation: | New York State College of Ceramics, Alfred University, Alfred, New York 14802 |
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Abstract: | The slope of density versus log (pressure) represents the efficiency of compaction forming. A high maximum particle packing density of powders increased the pressing efficiency and the compact density. A high granule density favors a high compact density, whereas, a low granule density favors an increase in the pressing efficiency and the elimination of the intergranular pores; an optimum clearly existed. At a very low forming pressure, the compact density using granules containing a binder was lower; but at a higher forming pressure, the binder acted as a lubricant and assisted particle sliding and rearrangement which increased the pressing efficiency and compact density. |
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