Title:
【発明の名称】酸化物超電導体の製造方法
Document Type and Number:
Japanese Patent JP2588200
Kind Code:
B2
Abstract:
PURPOSE:To obtain an oxide superconductor having high density easily, by coagulating melted oxides consisting of elements for constituting the oxide superconductor to a desired shape by cooling, then heating the coagulated product in the atmosphere contg. oxygen. CONSTITUTION:Oxides of elements constituting an oxide superconductor are melted, and then coagulated by cooling to a desired shape. The coagulated product is then heated in O2-contg. atmosphere to obtain a superconductor. Perovskite type oxide superconductors contg. an Ln element (at least one kind among Y, La, Sc, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Lu), AE element (at least one kind among Ba, Ca, and Sr), and Cu are used recently effectively because superconductors having >=100K critical temperature of superconductivity are obtd. from said compsn. The heat-treatment described above is executed usually at 300-700 deg.C, and improved superconducting characteristic is obtd. by cooling slowly down to about 300 deg.C.
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Inventors:
INOMATA KOICHIRO
HASHIMOTO SUSUMU
HASHIMOTO SUSUMU
Application Number:
JP16855787A
Publication Date:
March 05, 1997
Filing Date:
July 08, 1987
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
C04B35/653; C01G1/00; C01G3/00; C04B35/00; C04B35/45; H01B12/00; H01B13/00; H01L39/12; H01L39/24; (IPC1-7): C04B35/45; C01G1/00; C01G3/00; C04B35/653; H01B12/00; H01L39/24
Domestic Patent References:
| JP6433005A | ||||
| JP645945A | ||||
| JP63313430A |
Attorney, Agent or Firm:
Hideaki Tokawa (1 outside)