Particle-Level Investigation of Densification During Uniaxial Hot Pressing: Continuum Modeling and Experiments

[+] Author and Article Information
R. L. Williamson, J. R. Knibloe, R. N. Wright

Idaho National Engineering Laboratory, EG&G Idaho, Inc., Idaho Falls, Idaho 83415-2218

J. Eng. Mater. Technol 114(1), 105-110 (Jan 01, 1992) (6 pages) doi:10.1115/1.2904129 History: Received April 02, 1991; Revised July 29, 1991; Online April 29, 2008


A combination of continuum models and experiments is used to investigate the deformation of individual particles during hot pressing. Results are described for both monosized and bimodal particle distributions, including a simple bimodal composite system. The effects of pressure and temperature on the densification rate, particle shape, and stress and strain fields are described. The detailed strain fields calculated by the model are useful for predicting microstructural development during the pressing process and thus can aid in the design of optimal pressing cycles.

Copyright © 1992 by The American Society of Mechanical Engineers
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