Constitutive modeling of spark-plasma sintering of conductive materials

被引：166
作者：
Olevsky, Eugene
Froyen, Ludo
机构：
[1] San Diego State Univ, Powder Technol Lab, San Diego, CA 92182 USA
[2] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Heverlee, Belgium
来源：
SCRIPTA MATERIALIA | 2006年 / 55卷 / 12期
基金：
美国国家科学基金会;
关键词：
sintering; electromigration; diffusion; powder consolidation;
D O I：
10.1016/j.scriptamat.2006.07.009
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A constitutive model for spark-plasma sintering (SPS) taking into consideration various mechanisms of material transport is developed. The contributions of sintering stress (surface tension), external load, and electromigration to sintering shrinkage are jointly analyzed. It is shown that electromigration-related material flux can be a significant component of the electric-current-accelerated diffusion. A spark-plasma sintering mechanism transport map is designed for aluminum powder. The results of modeling agree satisfactorily with the experimental data on Al powder's SPS in terms of shrinkage kinetics. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1175 / 1178
页数：4
相关论文
共 19 条
[1]   Fundamental investigations on the spark plasma sintering/synthesis process - II. Modeling of current and temperature distributions [J].
Anselmi-Tamburini, U ;
Gennari, S ;
Garay, JE ;
Munir, ZA .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 394 (1-2) :139-148
[2]  
Ashby M.F., 1982, DEFORMATION MECH MAP
[3]   RHEOLOGY OF POROUS ALUMINA AND SIMULATION OF HOT ISOSTATIC PRESSING [J].
BESSON, J ;
ABOUAF, M .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (08) :2165-2172
[4]   STRESS GENERATION BY ELECTROMIGRATION [J].
BLECH, IA ;
HERRING, C .
APPLIED PHYSICS LETTERS, 1976, 29 (03) :131-133
[5]  
FEDORCHENKO IM, 1977, DOKL AKAD NAUK SSSR+, V236, P585
[6]  
GERMAN RM, 1996, SINTERGING THEORY PR
[7]   Sintering activation by external electrical field [J].
Groza, JR ;
Zavaliangos, A .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 287 (02) :171-177
[8]  
HUMMEL RE, 1994, INT MATER REV, V39, P97, DOI 10.1179/095066094790326194
[9]   The modeling of electric-current-assisted sintering to produce bulk nanocrystalline tungsten [J].
McWilliams, B ;
Zavaliangos, A ;
Cho, KC ;
Dowding, RJ .
JOM, 2006, 58 (04) :67-71
[10]   MASS-TRANSPORT AT INTERFACES IN SINGLE-COMPONENT SYSTEMS [J].
MULLINS, WW .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (08) :1917-1929
12