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Design of ceramics powder compaction process parameters (Part Ⅰ : Finite element analysis)  

Jung S. C. (Department of Precision Mechanical Engineering, Graduate School in Hanyang University)
Keum Y. T. (Division of Mechanical Engineering, Hanyang University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.15, no.1, 2005 , pp. 21-26 More about this Journal
Abstract
In order to simulate the powder compaction process and to assess the effects of packing randomness and particle arrangement 2-dimensional model of rod array compaction using quasi-random multiparticle array is introduced. The elastic modulus of porous ceramics is computed by the homogenization method. With 3 Al₂O₃ and 3 Al particles the compaction processes associated with the porosities are simulated by the explicit finite element method, based on the elastic modulus found by the homogenization method. The simulation results are compared with both previous analytical ones and experimental measurements. Finally, in order to find the relationship between the friction coefficient of powder particles and the relative density, the sensitivity analysis is performed.
Keywords
Ceramics powder compaction; Homogenized method; Quasi-random multi-particle array; 2-Dimensional rod array; Finite element analysis;
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