The Structure and Superconducting Properties of Multifilamentary Nb3Sn Wires Prepared by Internal Sn Diffusion Process Using Sn-Ti Cores

1986 ◽  
pp. 995-1002 ◽  
Author(s):  
S. Miyashita ◽  
K. Yoshizaki ◽  
Y. Hashimoto ◽  
K. Itoh ◽  
K. Tachikawa
Keyword(s):  
Diffusion Process ◽  
Superconducting Properties

Improved superconducting properties for multifilament graphene-doped MgB2 wires by an internal Mg diffusion process

2018 ◽  
Vol 227 ◽  
pp. 305-307 ◽  
Author(s):  
Haoran Liu ◽  
Qingyang Wang ◽  
Fang Yang ◽  
Lihua Jin ◽  
Xiaomei Xiong ◽  
...  
Keyword(s):  
Diffusion Process ◽  
Superconducting Properties ◽  
Mgb2 Wires ◽  
Doped Mgb2

Superconducting properties of Nb3(Sn1−xGax) by a solid‐state diffusion process

1976 ◽  
Vol 28 (12) ◽  
pp. 738-740 ◽  
Author(s):  
O. Horigami ◽  
Thomas Luhman ◽  
C. S. Pande ◽  
M. Suenaga
Keyword(s):  
Solid State ◽  
Diffusion Process ◽  
Solid State Diffusion ◽  
Superconducting Properties ◽  
State Diffusion

scholarly journals Superconducting Properties and Structures of MgB2 Wires Prepared by External Diffusion Process

2016 ◽  
Vol 80 (7) ◽  
pp. 447-451
Author(s):  
Hiroshi Ohuchi ◽  
Yutaka Yamada ◽  
Naoya Kaneda ◽  
Hiroki Fujii ◽  
Hiroaki Kumakura
Keyword(s):  
Diffusion Process ◽  
Superconducting Properties ◽  
External Diffusion

Preparation and Superconducting Properties of Niobium Carbonitride Wires

1975 ◽  
Vol 30 (4) ◽  
pp. 528-532 ◽  
Author(s):  
K.-H. Bernhardt
Keyword(s):  
Transition Temperature ◽  
Diffusion Process ◽  
Optimum Conditions ◽  
Superconducting Properties ◽  
Niobium Carbonitride

Abstract Superconducting niobium carbonitride wires Nb(CyNx) has been prepared by a diffusion process in two steps, first diffusing carbon from methane into niobium wires and then nitrogen into these carbonized samples. The optimum conditions for these preparations have been investigated in detail. All samples have been analysed quantitatively for C, N and Nb. The carbonizing as well as the following nitriding of the wires has been investigated under various conditions. The maximum of the transition temperature of the Nb(CyNx) wires prepared by this two steps diffusion process is reached for the same composition y, x as for sintered samples. But the value is about 0.4 K lower.

Growth mechanism of Ag-foil-based artificially superconducting joints of YBa2Cu3O7 monoliths

2006 ◽  
Vol 21 (10) ◽  
pp. 2534-2541 ◽  
Author(s):  
S. Iliescu ◽  
X. Granados ◽  
T. Puig ◽  
X. Obradors
Keyword(s):  
Critical Current Density ◽  
Diffusion Process ◽  
Growth Mechanism ◽  
Current Density ◽  
Solid Matrix ◽  
Superconducting Properties ◽  
Interface Growth ◽  
Thin Foils ◽  
Complex Shapes ◽  
Perfect Interface

A new method was developed allowing large superconducting YBa2Cu3O7 (YBCO) monoliths having complex shapes to be obtained. This method consists of joining two or more YBCO monoliths, and it is based on the interfacial melting induced by metallic Ag thin foils inserted between YBCO pellets. Studies of the microstructure and the superconducting properties of the joints obtained by using this technology have shown that a perfect interface can be obtained without agglomerations of non-superconducting phases and with a critical current density as high as that of the original blocks. No evidence of Ag precipitates was detected either at the interface or into the YBCO solid matrix, suggesting a migration of Ag. For a better understanding of the interface growth mechanism, we studied the influence of the cooling rate. The knowledge on the Ag diffusion process has enabled us to propose a model for the growth mechanism of the YBCO/Ag/YBCO interfaces.

scholarly journals Superconducting Properties and Structures in Bi-Based High-Tc Oxide Rods Prepared by Diffusion Process

1997 ◽  
Vol 61 (9) ◽  
pp. 836-841 ◽  
Author(s):  
Yutaka Yamada ◽  
Fumiyoshi Yamashita ◽  
Katsuji Wada ◽  
Kyoji Tachikawa
Keyword(s):  
Diffusion Process ◽  
Superconducting Properties
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