Title:
RARE EARTH OXIDE SUPERCONDUCTOR AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/088653
Kind Code:
A1
Abstract:
RE superconductive layer excelling in Jc and Tc is formed on an interlayer capable of preventing cracking and diffusion of substrate-constituting Ni element into YBCO layer and excelling in crystallinity and surface smoothness. The interlayer is formed by coating a surface of metal substrate with a mixed solution composed of an organometallic acid salt of cerium, an organometallic acid salt of a solid solution formation element capable of forming a solid solution with cerium and an organometallic acid salt of a charge compensation element capable of compensating for a charge mismatch attributed to a difference between the electron valences of respective ions of cerium and the solid solution formation element and subsequently carrying out heat treatment in a reducing atmosphere of 900 to 1200°C whose pressure ranges from 0.1 Pa to below atmospheric pressure. Thereafter, a rare earth oxide superconductive layer is formed on the interlayer.
Inventors:
AOKI YUJI (JP)
TAKAHASHI YASUO (JP)
HASEGAWA TAKAYO (JP)
TAKAHASHI YASUO (JP)
HASEGAWA TAKAYO (JP)
Application Number:
PCT/JP2004/003264
Publication Date:
September 22, 2005
Filing Date:
March 12, 2004
Export Citation:
Assignee:
INT SUPERCONDUCTIVITY TECH (JP)
SHOWA ELECTRIC WIRE & CABLE CO (JP)
AOKI YUJI (JP)
TAKAHASHI YASUO (JP)
HASEGAWA TAKAYO (JP)
SHOWA ELECTRIC WIRE & CABLE CO (JP)
AOKI YUJI (JP)
TAKAHASHI YASUO (JP)
HASEGAWA TAKAYO (JP)
International Classes:
H01B12/06; H01B13/00; H01L39/24; (IPC1-7): H01B12/06; H01B13/00
Foreign References:
| JP2002203439A | 2002-07-19 |
Other References:
TAKAHASHI Y. ET AL: "MOD-ho Mochiita YBCO Senzaiyo Chukanso no Kaihatsu.", MEETING ON CRYOGENICS AND SUPERCONDUCTIVITY., 3 December 2003 (2003-12-03), pages 21, XP002992417
Attorney, Agent or Firm:
Moriya, Kazuo (Watanabe and Company Lots Wako Bldg., 1-13,
Nihonbashi-Honcho 3-chom, Chuo-ku Tokyo, JP)
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