Pressure Effects on Temperature Distribution during Spark Plasma Sintering with Graphite Sample

被引：42
|
作者：
Grasso, Salvatore [1 ,2 ,3 ]
Sakka, Yoshio [1 ,2 ,3 ]
Maizza, Giovanni [4 ]
机构：
[1] Natl Inst Mat Sci, World Premier Int Res Ctr Initiat WPI Initiat Mat, Tsukuba, Ibaraki 3050047, Japan
[2] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3050047, Japan
[3] Natl Inst Mat Sci, Nano Ceram Ctr, Fine Particle Proc Grp, Tsukuba, Ibaraki 3050047, Japan
[4] Politecn Torino, Dipartimento Sci Mat & Ingn Chim, I-10129 Turin, Italy
来源：
MATERIALS TRANSACTIONS | 2009年 / 50卷 / 08期
关键词：
spark plasma sintering; finite element; multiphysics modeling; contact pressure; graphite compact sample; ELECTRICAL CONTACT RESISTANCE; CARBON;
D O I：
10.2320/matertrans.M2009148
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of applied pressures on temperature distribution in punch/die/graphite/sample assembly during SPS current control mode operation was systematically investigated by coupling experiments and computer modeling. Combined experimental and numerical results showed that the peak temperature and the temperature difference existing between the sample and the die outer surface progressively decreased with increasing of applied pressure from 5 to 80 MPa. This behavior wits attributed to the strong change of the electric and thermal contact resistances at the punch/die interface due to punch Poisson deformation. [doi:10.2320/matertrans.M2009148]
引用
收藏
页码：2111 / 2114
页数：4
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