Process for preparting a bismuth-type compound oxide superconduc

Details Process for preparting a bismuth-type compound oxide superconduc Process for preparting a bismuth-type compound oxide superconduc

1989-08-30

1990-07-17

Kaplan, G. L.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

156606, 156609, 156610, 20419224, 423593, 423604, 505725, 505730, 505731, 505782, 505784, C01F 1102

Patent

active

049421522

ABSTRACT:
A novel process for preparing superconductor of bismuth-containing compound oxide such as Bi--Sr--Ca--Cu system.
In the present invention, firstly an intermediate compound oxide containing metal elements of the superconductor except bismuth is prepared and then the intermediate compound oxide is contacted with bismuth oxide vapour at a temperature between 750.degree. and 950.degree. C. so that bismuth oxide is reacted with said intermediate compound oxide.

REFERENCES:
S. A. Shaheen et al., Solid State Communications, vol. 66, No. 9, pp. 947-951, 1988.
Brian T. Sullivan et al., Appl. Phys. Lett., 52(23), pp. 1992-1994, Jun. 6, 1988.
A. B. Harker et al., Appl. Phys. Lett., 52(25), pp. 2186-2187, Jun. 20, 1988.
C. E. Rice et al., Appl. Phys. Lett., 52(21), pp. 1828-1830, May 23, 1988.
Osamu Inoue et al., Japanese Journal of Appl. Physics, vol. 27, No. 3, pp. L347-L349 (1988).
R. Gross et al., Nature, vol. 332, pp. 818-819, Apr. 1988.
W. Korczak et al., Solid State Communications, vol. 66, No. 9, pp. 971-973, (1988).
Masao Nakao et al., Japanese Journal of Applied Physics, vol. 27, No. 3, pp. L378-L380 (1988).

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