Abstract
From the phenomenological point of view classic press molding of ceramic bodies from loose ceramic powders is a process of dense packing of fine grains in rigid form. The non-uniformity in the thickening of the samples pressed along the direction of the pressure applied is the greatest shortcoming of the classic die pressing. It results from the non-uniform distribution of the pressing forces in the sample, which is the effect of friction forces between the ceramic powder particles, and also between the ceramic powder particles and walls of the matrix.
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