Constitutive modeling of cold compaction and sintering of hardmetal
Article Abstract:
The pertinent thermodynamics background with particular emphasis on a rational definition of the 'sintering stress' is established. A numerical investigation of the compaction and sintering of a specimen, whereby the model is calibrated, conclude the study using experimental data from free and uniaxially loaded sintering experiments.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2003
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Constitutive data for powder compaction modeling
Article Abstract:
The compaction behavior of steel powders, hard metals and ceramic powders is investigated using a newly developed high-pressure triaxial testing facility. Results from isostatic compaction, simulated closed die compaction, and compaction along different radial loading paths in stress space are presented for six commercial powders.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2001
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Near-net-shape forming of ceramic powder under cold combination pressing and pressureless sintering
Article Abstract:
Near-net-shape forming of zirconia powder was investigated under the combination of cold die and isostatic pressing and pressureless sintering. Finite element results were obtained by using the constitutive models proposed by Kim and co-workers for densification of ceramic powder under cold compaction and pressureless sintering.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2001
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