Ordering of Nb3Sn layer formed in the bronze process - I

1985 ◽  
Vol 55 (6) ◽  
pp. 563-566 ◽  
Author(s):  
S.K. Agarwal ◽  
A.V. Narlikar
Keyword(s):  
Nb3sn Layer

Ti Redistribution in Multifilamentary Nb/Cu-Sn Composites

2009 ◽  
Vol 283-286 ◽  
pp. 649-656 ◽  
Author(s):  
E.N. Popova ◽  
Vladimir V. Popov ◽  
E.P. Romanov ◽  
S.V. Sudareva ◽  
E.A. Dergunova ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Carrying Capacity ◽  
Fine Particles ◽  
Grain Structure ◽  
High Magnetic Fields ◽  
Superconducting Properties ◽  
Optimal Amount ◽  
Doping Element ◽  
Nb3sn Layer ◽  
Bronze Matrix

Multifilamentary bronze-processed Nb3Sn-based composites have been studied by the methods of TEM and SEM. Ti as a doping element required for an enhancement of superconducting characteristics, especially in high magnetic fields, was inserted either in a bronze matrix, or in Nb filaments of a composite. It has been found that Ti diffuses into the growing Nb3Sn layer in both cases, and affects positively its structure and superconducting characteristics of a composite as a whole, especially in case of the doped matrix. When Ti is added to Nb filaments, it forms fine particles of intermetallic compounds with Sn in the nanocrystalline diffusion layer. When these particles are formed, grain boundaries of the diffusion Nb3Sn layer purify from segregations, and grains in the vicinity of these particles coarsen, which negatively affects the current-carrying capacity of a composite. That’s why an optimal amount of Ti in Nb should be chosen, when Ti mainly dissolves in the Nb3Sn phase increasing its superconducting properties and not deteriorating its grain structure.

Influence of Ge addition on Nb3Sn layer growth and electromagnetic properties in internal tin processed wires

2002 ◽  
Vol 372-376 ◽  
pp. 1299-1302 ◽  
Author(s):  
Dong-Woo Ha ◽  
Nam-Jin Lee ◽  
Sang-Soo Oh ◽  
Hong-Soo Ha ◽  
Eon-Yong Lee ◽  
...  
Keyword(s):  
Layer Growth ◽  
Electromagnetic Properties ◽  
Nb3sn Layer

Ordering of Nb3Sn layer formed in the bronze process - II: The dilemma of kinetics

1986 ◽  
Vol 58 (2) ◽  
pp. 89-92 ◽  
Author(s):  
S.K. Agarwal ◽  
K.C. Nagpal ◽  
A.V. Narlikar
Keyword(s):  
Nb3sn Layer

The study on the critical temperature, composition, and microstresses in a Nb3Sn layer

Cryogenics ◽  
2002 ◽  
Vol 42 (5) ◽  
pp. 279-285 ◽  
Author(s):  
N Kozlenkova ◽  
A Shikov ◽  
V Pantsyrnyi ◽  
A Vorobieva
Keyword(s):  
Critical Temperature ◽  
Nb3sn Layer

Diffusion of tin during growth of the Nb3Sn layer

1980 ◽  
Vol 22 (12) ◽  
pp. 904-907
Author(s):  
A. A. Bochvar ◽  
V. S. Sergeev ◽  
V. G. Kuznetsova ◽  
A. D. Nikulin ◽  
E. A. Klepatskaya ◽  
...  
Keyword(s):  
Nb3sn Layer
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