Method of preparation of silver composite high temperature ceram

Details Method of preparation of silver composite high temperature ceram Method of preparation of silver composite high temperature ceram

1991-04-22

1993-06-29

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

419 19, 419 20, 419 21, 419 22, 423604, 423635, 505737, 505738, 505785, C01F 1102, C01G 302

Patent

active

052234800

ABSTRACT:
A novel method for forming homogeneous silver high temperature superconductor (HTS) composites. The novel method comprises a chemical coprecipitation of silver, barium, yttrium, and copper salts solutions, followed by calcination and milling processes. The novel method has an advantage of retaining all the virtues immanent in a composite HTS, for example, increased critical current density (Jc), and improved mechanical properties, while bypassing extant and deficient methodologies for forming a composite, the deficient composites characterized by heterogeneity.

REFERENCES:
patent: 4839339 (1989-06-01), Bunker et al.
patent: 5071826 (1991-12-01), Anderson
Wang et al. "Comparison of Carbonite, Citrate, Oxalite . . . " Inorg. Chem. vol. 26 1987 pp. 1474-1476.
Carim et al. "Nanocrystalline yttrium barium . . . " Mat. Lett. vol. 8(9) pp. 335-339 1989 (Abstract only).
Cukauskas et al. "The properties of yttrium . . . " J. Appl. Phys. vol. 67(11) 1990 pp. 6946-6952 (Abstract only).

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