Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 394, Issue 1-2, Pages 139-148Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2004.11.019
Keywords
spark plasma sintering method; SPS; modeling; temperature and current distributions
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Modeling and experimental analyses were carried out to investigate current and temperature distributions under typical spark plasma sintering (SPS) conditions. The simulation utilized two sample materials with widely differing electrical conductivities, alumina and copper. Current and heat generation gradients were evaluated in the radial and axial directions for both cases. Radial gradients result in significant differences in temperature between the surface of the graphite die and its center, in agreement with experimental measurements. Axial gradients are shown to influence the homogeneity of the product. (c) 2004 Elsevier B.V. All rights reserved.
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