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TECHNICAL PAPERS

Cold Compaction of Composite Powders

[+] Author and Article Information
K. T. Kim, J. H. Cho, J. S. Kim

Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea

J. Eng. Mater. Technol 122(1), 119-128 (Jul 16, 1999) (10 pages) doi:10.1115/1.482775 History: Received April 13, 1998; Revised July 16, 1999
Copyright © 2000 by ASME
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References

Figures

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Scanning electron micrographs of (a) Cu powder and (b) W powder
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Uniaxial stress-plastic strain relation for dense copper
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Uniaxial stress-plastic strain relation for dense tungsten
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Optical micrographs of 40 vol% of W in Cu composite powder compacts at various hydrostatic pressure
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Optical micrographs of composite powder compacts with various vol% of W in Cu under cold isostatic pressing at 250 MPa
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Comparisons between experimental data and theoretical predictions from the proposed model for the variation of relative density with hydrostatic pressure of composite powders with various vol% of W in Cu under cold isostatic pressing
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Comparisons between experimental data and theoretical predictions from various models for the variation of relative density with hydrostatic pressure of (a) 20 (b) 40 (c) 60 (d) 80 vol% of W in Cu under cold isostatic pressing
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Optical micrographs of 40 vol% of W in Cu composite powder compacts at various pressures
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Optical micrographs of composite powder compacts with various vol% of W in Cu under cold die compaction at 300 MPa
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Comparisons between experimental data and theoretical predictions from the present model for the variations of relative density with pressure of composite powders with various vol% of W in Cu under cold die compaction
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Comparisons between epxerimental data and theoretical predictions from the present model and the model by Storåkers et al. 17 for the variations of relative density with pressure of composite powders with various vol% of W in Cu under cold die compaction

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