Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9796400 | Materials Science and Engineering: A | 2005 | 6 Pages |
Abstract
A simple equation is proposed for calculating the effective area in a powder compact at any stage of a uniaxial compression process. In this equation, the effective area is a function of both the sample porosity and the tap porosity of the starting powder. The tap porosity determines to a great extent the pore structure of the compact, since this depends on the size, shape and distribution of powder particles. The proposed equation was evaluated by using a computer simulation of the deformation process for a simple cubic packing, and direct measurements on SEM images of powder compacts prepared at different pressures. Results are in very good agreement with theoretical predictions.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
J.M. Montes, F.G. Cuevas, J. Cintas,