Effects of high-pressure sintering on critical current density in Co-doped BaFe2As2 wires

2014 ◽  
Vol 504 ◽  
pp. 73-76 ◽  
Author(s):  
Hiroshi Inoue ◽  
Yuji Tsuchiya ◽  
Shinya Tada ◽  
Sunseng Pyon ◽  
Hideki Kajitani ◽  
...  
Keyword(s):  
High Pressure ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
High Pressure Sintering ◽  
Co Doped

scholarly journals Enhancement of critical current density in (Ba,Na)Fe2As2 round wires using high-pressure sintering

2020 ◽  
Vol 33 (6) ◽  
pp. 065001 ◽  
Author(s):  
Sunseng Pyon ◽  
Daisuke Miyawaki ◽  
Tsuyoshi Tamegai ◽  
Satoshi Awaji ◽  
Hijiri Kito ◽  
...  
Keyword(s):  
High Pressure ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
High Pressure Sintering

High Critical Current Density of a MgB2 Bulk Superconductor High-pressure Synthesized Directly from the Elements

2002 ◽  
Vol 17 (3) ◽  
pp. 525-527 ◽  
Author(s):  
C-Q. Jin ◽  
S-C. Li ◽  
J-L. Zhu ◽  
F-Y. Li ◽  
Z-X. Liu ◽  
...  
Keyword(s):  
High Pressure ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Superconducting Transition ◽  
High Critical Current Density ◽  
Bulk Superconductor ◽  
High Pressure Sintering ◽  
Current Densities ◽  
Pressure Synthesis

We report the property studies of a MgB2 superconductor with high critical current density. The MgB2 superconductor was readily fabricated through a direct high-pressure synthesis of the respective elements. The obtained high-density MgB2 undergoes a sharp superconducting transition at 39 K. The bulk critical current density (Jc) of the sample was calculated on the basis of Bean's critical state model, and rather high critical current densities over a wide temperature range were obtained in comparison with the ambient prepared samples. The results highlight that high-pressure sintering would be a promising way to produce and search for this kind of intermetallic boride and the related superconductors.

Effects of High-Pressure Sintering on Critical Current Density in (Ba,K)Fe2As2 PIT Wires

2015 ◽  
Vol 25 (3) ◽  
pp. 1-4 ◽  
Author(s):  
T. Tamegai ◽  
S. Pyon ◽  
Y. Tsuchiya ◽  
H. Inoue ◽  
N. Koizumi ◽  
...  
Keyword(s):  
High Pressure ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
High Pressure Sintering

Effects of high-pressure annealing on critical current density in 1 2 2 type iron pnictide wires

2014 ◽  
Vol 504 ◽  
pp. 69-72 ◽  
Author(s):  
Sunseng Pyon ◽  
Yuji Tsuchiya ◽  
Hiroshi Inoue ◽  
Norikiyo Koizumi ◽  
Hideki Kajitani ◽  
...  
Keyword(s):  
High Pressure ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Iron Pnictide

Enhancement of the critical current density and upper critical field in Zr and Mo co-doped Nb3Sn

2009 ◽  
Vol 23 (2) ◽  
pp. 025016 ◽  
Author(s):  
Bing He ◽  
Cheng Dong ◽  
Wenhuan Cao ◽  
Changzhong Liao ◽  
Lihong Yang ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Critical Field ◽  
Current Density ◽  
Upper Critical Field ◽  
Co Doped

Critical current density and vortex dynamics in uranium irradiated Co-doped BaFe2As2

2011 ◽  
Vol 471 (21-22) ◽  
pp. 790-793 ◽  
Author(s):  
H. Yagyuda ◽  
Y. Nakajima ◽  
T. Tamegai ◽  
Y. Kanai ◽  
T. Kambara
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Vortex Dynamics ◽  
Co Doped

scholarly journals Self-Propagating High Temperature Synthesis of MgB2 Superconductor in High-Pressure of Argon Condition

2017 ◽  
Vol 19 (2) ◽  
pp. 177 ◽  
Author(s):  
S. Tolendiuly ◽  
S. M. Fomenko ◽  
G. C. Dannangoda ◽  
K. S. Martirosyan
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
High Pressures ◽  
Volume Fraction ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Ar Gas

<p>Magnesium diboride can be synthesized under argon ambient, elevated or high pressures. High-pressure syntheses are promising methods for manufacturing of the bulk MgB<sub>2</sub> superconductor material. We have been used high pressure of Ar gas in order to investigate its effect on properties of MgB<sub>2</sub> superconductor such as critical temperature and current density. Bulk MgB<sub>2</sub> superconductor was synthesized from elemental Mg–B powders in thermal explosion mode of self-propagating high-temperature synthesis (SHS) under argon pressure of 25 atm. XRD pattern of the as-synthesized product indicates an almost complete conversion of the reactants to the MgB<sub>2</sub> single phase. Most of the diffractions peaks are related to the MgB<sub>2</sub> polycrystalline bulk material. The impurity fraction is less than 24.3% in total sample and identified as MgO and MgB<sub>4</sub> secondary phases. The positive effect of pressure of Ar gas during synthesis of MgB2 on critical current density JC has been confirmed. The critical current density of the sample was achieved in high pressure reactor was 3.8×10<sup>6</sup> A/cm<sup>2</sup>. A superconducting volume fraction of 16% under a magnetic field of 10 Oe was obtained at 5 K, indicating that the superconductivity was bulk in nature. The succeeded level of superconductor parameters of the high-pressure synthesized MgB<sub>2</sub> and the possibility to produce a large bulk products make this technology very promising for practical applications.</p>

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