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《POWDER METALLURGY TECHNOLOGY》 1995-02
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A GENERALIZED POWDER COMPACTION EQUATION AND STATISTICAL ANALYSIS ON ITS VALIDITY

De Rongde (Central South University of Technology, Changsha 410083)  
Based on an analysis of the various compaction equations previously proposed, a generalized differential equation for the compection of powders has been proposed,which is expressed as follows:It has been proven by statistical analysis that the compaction equations derived from the above differential equation with the values of n from 0 to 4 give the correlation coefficients greater than 0.99 in all cases. The results of the quantitative comparison between the compaction equation derived from the value of n taken as zero and the most widely used compaction equations proposed respectively by Balshin, Heckel,and Kawakita have shown that a better quantitative description of the compaction of both metallic and non-metallic powders is given by the compaction equation proposed in the present work.
【CateGory Index】: TF122.5
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