Making niobium intermetallic compounds

Details Making niobium intermetallic compounds Making niobium intermetallic compounds

1983-11-15

1984-08-14

Stallard, W.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

29599, 75 05BB, 75 84, 75 844, 75 845, 420425, 420490, B22F 922, C22C 2702

Patent

active

044655118

ABSTRACT:
NbSn.sub.2 is made by passing NbCl.sub.5 volatilized in an argon stream at 550.degree. C. to liquid tin. The product precipitates as a solid, while the tin chloride by product is carried away by the argon. Nb.sub.6 Sn.sub.5 is made from this NbSn.sub.2 by reacting it with more niobium halide vapor. NbSn.sub.2 or Nb.sub.6 Sn.sub.5 are useful intermediates in making the Al5-structure superconductor Nb.sub.3 Sn.

REFERENCES:
patent: 3290186 (1966-12-01), Rosi et al.
patent: 4005990 (1977-02-01), Newkirk et al.
patent: 4050147 (1977-09-01), Winter
patent: 4054686 (1977-10-01), Newkirk et al.
patent: 4202931 (1980-05-01), Newkirk et al.
patent: 4402768 (1983-09-01), Newkirk et al.

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