Preparation of superconducting films and a process for preparing

Details Preparation of superconducting films and a process for preparing Preparation of superconducting films and a process for preparing

1998-08-03

2000-03-21

Kopec, Mark

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

Coating

505741, 427 62, 501123, 501126, A01L 3924, B05D 512

Patent

active

06040275&

ABSTRACT:
A novel ceramic substrate useful for the preparation of superconducting films, said substrate having the formula REBa.sub.2 MO.sub.6 where RE represents rare earth metals--Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and M represents metals Nb, Sb, Sn, Hf, Zr; and a process for the preparation of superconducting YBa.sub.2 Cu.sub.3 O.sub.7-.delta. thick films on new ceramic substrate.

REFERENCES:
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patent: 5741747 (1998-04-01), Koshy et al.
patent: 5856276 (1999-01-01), Koshy et al.
Alford et al., "Low surface resistance YBCO thick films", Supercond. Sci. Technol. 4, 433-435 (1991).
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Brandle et al., "Preparation of perovskite oxides for high T.sub.c superconductor substrates", J. Mater. Res., vol. 5, No. 10, 2160-2164 (1990).
Brousse et al., "Superconducting Screen printed Thick Films of YBa.sub.2 Cu.sub.3 O.sub.7 and Bi.sub.1.6 Pb.sub.0.4 Sr.sub.1.6 Ca.sub.2.4 Cu.sub.3 O.sub.10 on Polycrystalline Substrates", Appl. Phys. A49, 217-220 (1989).
Khare et al., "RF SQUID behaviour in YBCO thick films up to 85 K", Supercond. Sci. Technol. 4, 107-109 (1991).
Koinuma et al., "Chemical Interaction between Ba.sub.2 YCu.sub.3 O.sub.7-.delta. and Substrate Materials in the Solid State", Jpn. J. Appl. Phys., vol.27, No. 7, 1216-1218 (1988).
Kozlowski et al., "Grain growth enhancement in silver-doped YBa.sub.2 Cu.sub.3 O.sub.7-x superconductor", J. Mater. Sci., vol. 26, No. 4, 1056-1060 (1991).
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