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AssigneeNippon Telegraph and Telephone Corporation
InventorsShuichi Shibata, Takeshi Kitagawa, Hisaaki Okazaki, Takao Kimura, Masaharu Horiguchi
Estimating the term…
Fine and homogeneous oxide particles for superconductors which can be sintered at a low temperature are prepared in a liquid phase by the sol-gel method using alkoxides as starting materials. By forming a buffer layer between a substrate and a superconducting film, good-quality and oriented superconducting film can be fabricated. Highly c-axis-oriented superconducting film and bulk products can be prepared from particular starting compositions in Ln-Ae-Cu-O and Bi-Ae-Cu-O systems. The oriented film can be produced by painting a paste of such starting compositions on a substrate followed by sintering, and the bulk form can be produced by pressing the pre-sintered powder of such starting compositions.
A process for preparing a superconducting oxide, comprising the steps of:
A process for preparing a superconducting oxide, comprising the steps of:
A process for preparing an oxide superconductor having its crystalline c-axis oriented perpendicular to a surface thereof, the process comprising:
A process for preparing a Bi-Ae-CuO series oxide superconductor having its crystalline c-axis oriented perpendicular to a surface thereof in which Ae is at least one alkaline earth metal, the process comprising:
Dependencies are inferred from the claim text.