Superconducting Properties of MgB2 Bulk Shaped by Spark Plasma Sintering

2016 ◽  
Vol 3 (2) ◽  
pp. 545-549 ◽  
Author(s):  
J.G. Noudem ◽  
L. Dupont ◽  
L. Gozzelino ◽  
P. Bernstein
Keyword(s):  
Spark Plasma Sintering ◽  
Superconducting Properties ◽  
Mgb2 Bulk ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Mechanical Properties of MgB2 Bulk Fabricated by Spark Plasma Sintering

2015 ◽  
Vol 65 ◽  
pp. 77-80 ◽  
Author(s):  
A. Murakami ◽  
J. Noudem ◽  
Z. Guesmi ◽  
T. Kudo ◽  
A. Iwamoto
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Mgb2 Bulk ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Synthesis of Dense MgB2 Superconductor via In Situ and Ex Situ Spark Plasma Sintering Method

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7395
Author(s):  
Joseph Longji Dadiel ◽  
Sugali Pavan Kumar Naik ◽  
Paweł Pęczkowski ◽  
Jun Sugiyama ◽  
Hiraku Ogino ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Microstructural Characterization ◽  
Ex Situ ◽  
Synthesis Methods ◽  
Mgb2 Bulk ◽  
Bulk Superconductors ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Sintering Conditions

In this study, high-density magnesium diboride (MgB2) bulk superconductors were synthesized by spark plasma sintering (SPS) under pressure to improve the field dependence of the critical current density (Jc-B) in MgB2 bulk superconductors. We investigated the relationship between sintering conditions (temperature and time) and Jc-B using two methods, ex situ (sintering MgB2 synthesized powder) and in situ (reaction sintering of Mg and B powder), respectively. As a result, we found that higher density with suppressed particle growth and suppression of the formation of coarse particles of MgB4 and MgO were found to be effective in improving the Jc-B characteristics. In the ex situ method, the degradation of MgB2 due to pyrolysis was more severe at temperatures higher than 850 °C. The sample that underwent SPS treatment for a short time at 850 °C showed higher density and less impurity phase in the bulk, which improved the Jc-B properties. In addition, the in situ method showed very minimal impurity with a corresponding improvement in density and Jc-B characteristics for the sample optimized at 750 °C. Microstructural characterization and flux pinning (fP) analysis revealed the possibility of refined MgO inclusions and MgB4 phase as new pinning centers, which greatly contributed to the Jc-B properties. The contributions of the sintering conditions on fP for both synthesis methods were analyzed.

Properties of ex-situ MgB2 bulk samples prepared by uniaxial hot pressing and spark plasma sintering

2018 ◽  
Vol 551 ◽  
pp. 48-54 ◽  
Author(s):  
W. Häßler ◽  
J. Scheiter ◽  
P. Hädrich ◽  
S. Kauffmann-Weiß ◽  
B. Holzapfel ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Hot Pressing ◽  
Ex Situ ◽  
Mgb2 Bulk ◽  
Plasma Sintering ◽  
Spark Plasma

Superconducting properties of polycrystalline MgB2 superconductors fabricated by spark plasma sintering

2005 ◽  
Vol 426-431 ◽  
pp. 588-593 ◽  
Author(s):  
K.J. Song ◽  
C. Park ◽  
S.W. Kim ◽  
R.K. Ko ◽  
H.S. Ha ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Superconducting Properties ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Mgb2 Superconductors

Fabrication and Mechanical Properties of ultra fine WC-6wt.%Co by Spark Plasma Sintering Process

2011 ◽  
Vol 49 (01) ◽  
pp. 40-45 ◽  
Author(s):  
Hyun-Kuk Park ◽  
Seung-Min Lee ◽  
Hee-Jun Youn ◽  
Ki-Sang Bang ◽  
Ik-Hyun Oh
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Sintering Process ◽  
Plasma Sintering ◽  
Spark Plasma

Effect of spark plasma sintering temperature on structure and phase composition of Ti-Al-Nb-based alloys

2017 ◽  
Vol 59 (11-12) ◽  
pp. 1033-1036 ◽  
Author(s):  
Sherzod Kurbanbekov ◽  
Mazhyn Skakov ◽  
Viktor Baklanov ◽  
Batyrzhan Karakozov
Keyword(s):  
Phase Composition ◽  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
Plasma Sintering ◽  
Spark Plasma
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