期刊
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
卷 213, 期 8, 页码 1327-1336出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2013.02.003
关键词
SPS; Thermal and electrical measurement; Modeling, FEM
Current, voltage and temperature measurements were performed at different points of the system to identify the controlling parameters of the spark plasma sintering (SPS) process. The very low inductance effects despite the high intensity current circulating through the SPS column justifies the use of Joule heating to characterize the phenomenon. The measurements also enabled the improvement and validation of an earlier electro-thermal numerical model developed using the finite element method (FEM). It has been shown that the electrical resistivity and the thermal conductivity of each of the elements are crucial parameters for the simulations. These parameters strongly modify the current modeled, thereby affecting the temperature distribution throughout the SPS column. (c) 2013 Elsevier B.V. All rights reserved.
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