Electric current effect during the early stages of field-assisted sintering

2018 ◽  
Author(s):  
Mattia Biesuz ◽  
Davide Rizzi ◽  
Vincenzo M. Sglavo
Keyword(s):  
Electric Current ◽  
Current Effect ◽  
Early Stages ◽  
Field Assisted Sintering ◽  
Electric Current Effect

Electric Current Effect on Metal Surface Layers

1989 ◽  
Vol 151 (1) ◽  
pp. 121-126 ◽  
Author(s):  
A. M. Roshchupkin ◽  
I. L. Bataronov ◽  
O. A. Troitskii ◽  
M. M. Moiseenko
Keyword(s):  
Electric Current ◽  
Metal Surface ◽  
Current Effect ◽  
Surface Layers ◽  
Electric Current Effect

scholarly journals Experimental evaluation of pulse electric current effect on residual stresses in composite-to-copper joints

2008 ◽  
Vol 40 (4) ◽  
pp. 452-457 ◽  
Author(s):  
G. V. Stepanov ◽  
A. I. Babutskii ◽  
I. A. Mameev ◽  
M. Ferraris ◽  
V. Casalegno ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Electric Current ◽  
Experimental Evaluation ◽  
Current Effect ◽  
Pulse Electric Current ◽  
Pulse Electric ◽  
Electric Current Effect

ELECTRIC CURRENT EFFECT ON YBa2Cu3O6.5+δ CERAMICS PROPERTIES AND COMPOSITION

1991 ◽  
Vol 05 (14n15) ◽  
pp. 1019-1024 ◽  
Author(s):  
V. I. NEFEDOV ◽  
A. N. SOKOLOV ◽  
N. K. BELSKY ◽  
L. I. OCHERTYANOVA ◽  
A. V. FILATOV ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Critical Current Density ◽  
Electric Current ◽  
Critical Current ◽  
Current Density ◽  
Sample Length ◽  
Current Effect ◽  
Electrode Polarity ◽  
First Time ◽  
Electric Current Effect

The changes of the YBa 2 Cu 3 O 6.5+δ properties and composition caused by dc and ac treatments at 77 K have been studied. Considerable changes of the cations and oxygen concentrations due to dc effect have been observed for the first time. Elements have been found to migrate both along the sample length according to the electrode polarity and between the sample bulk and the surface. Small impurities such as S, Si, K and Cl have been observed to migrate along the sample length as well. The composition variations are accompanied by changes of magnetic properties and intragrain critical current density. Some aspects of HTSC degradation under these conditions are discussed.

Binder-Free Tungsten Carbide Fabricated by Pulsed Electric Current Sintering

2007 ◽  
Vol 534-536 ◽  
pp. 1153-1156 ◽  
Author(s):  
Koji Shimojima ◽  
Hiroyuki Hosokawa ◽  
Takeshi Nakajima ◽  
Masahiko Mizukami ◽  
Yoshiharu Yamamoto
Keyword(s):  
Mechanical Properties ◽  
Tungsten Carbide ◽  
Electric Current ◽  
Applied Pressure ◽  
High Hardness ◽  
Maximum Temperature ◽  
Pulsed Electric Current ◽  
Binder Free ◽  
Field Assisted Sintering ◽  
Sintering Condition

In this paper, we show some experimental results of binder-free WC sintered by Pulsed Electric Current Sintering (PECS) also known as Field Assisted Sintering Technology (FAST). These binder-free WC have extremely high hardness and stiffness. However, these mechanical properties are dependent on the sintering condition, e.g., maximum temperature, applied pressure, etc. We show some relationship between mechanical properties and sintering condition to improve to sinter the binder-free WC.

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