Moving finite-element mesh model for aiding spark plasma sintering in current control mode of pure ultrafine WC powder

2009 ◽  
Vol 44 (5) ◽  
pp. 1219-1236 ◽  
Author(s):  
G. Maizza ◽  
S. Grasso ◽  
Y. Sakka
2017 ◽  
Vol 116 ◽  
pp. 504-514 ◽  
Author(s):  
Youssef Achenani ◽  
Malika Saâdaoui ◽  
Abdelkhalek Cheddadi ◽  
Guillaume Bonnefont ◽  
Gilbert Fantozzi

2015 ◽  
Vol 47 (2) ◽  
pp. 1263-1273 ◽  
Author(s):  
Maxime Schwertz ◽  
Aurélien Katz ◽  
Emmanuel Sorrel ◽  
Sébastien Lemonnier ◽  
Elodie Barraud ◽  
...  

2019 ◽  
Vol 286 ◽  
pp. 04002 ◽  
Author(s):  
Youssef Achenani ◽  
Abdelkhalek Cheddadi ◽  
Malika SaÂdaoui ◽  
Gilbert Fantozzi

In the present work, we investigate the stresses distribution using a high pressure die during SPS (Spark Plasma Sintering) experiments. In this context, we used a finite element modeling (FEM) in the case of the sintering of an alumina sample, chosen as an electrically insulator ceramic material. A thermal sintering cycle is imposed using a control pyrometer of temperature at the SiC inner die surface.


2013 ◽  
Vol 833 ◽  
pp. 111-114
Author(s):  
Xiao Cong Feng ◽  
Dao Yuan Yang ◽  
Yuan Chao Qu ◽  
Ting Wang ◽  
Cun Bao Zhang

The current distribution had remarkable effect on the microstructure and properties of MgAlON composites in the process of spark plasma sintering (SPS). MgAlON composites, using alumina, magnesia and aluminum as starting materials, were prepared by SPS. Based on the current distribution method, the current distribution model on samples and single grain was established, and the basic electric current control principle was analyzed. It was found that the current conveyance by sample or single Al grain could be expressed by a formula including B and I.In the formula, B was the Al volume fraction and I was the total current. When the Al volume fraction was controlled within 12%, the current conveyance by sample increased significantly with the Al addition increasing. Meanwhile, the current conveyance by single Al grain decreased significantly. The sintering speed and properties of MgAlON composites by SPS would show a significantly change.


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