Electro-thermal measurements and finite element method simulations of a spark plasma sintering device
Electro-thermal measurements and finite element method simulations of a spark plasma sintering device
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DOI：
10.1016/j.jmatprotec.2013.02.003
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发表时间：
2013-08-01
影响因子：
6.3
通讯作者：
Estournes, C.
中科院分区：
文献类型：
--
作者：
Pavia, A.;Durand, L.;Estournes, C.
在系统的不同点进行电流、电压和温度测量，以识别放电等离子烧结（SPS）过程的控制参数。尽管高强度电流循环通过SPS柱，但非常低的电感效应证明使用焦耳加热来表征该现象是合理的。这些测量结果还使早期使用有限元法（FEM）开发的电热数值模型得以改进和验证。已经表明，每个元件的电阻率和热导率是模拟的关键参数。这些参数强烈修改电流建模，从而影响整个SPS柱的温度分布。(c)2013 Elsevier B.V.保留所有权利。
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.