Critical Current Densities in Superconducting Y-Ba-Cu-O Prepared by Chelating Method

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概要

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• The critical current of superconducting Y-Ba-Cu-O (YBCO) compounds prepared by the chelating method was investigated. The chelating agents used for this study were iminodiacetic acid (IDA), nitrilotriacetic acid (NTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA) and triethylenetetraminehexaacetic acid (TTHA). The precursor YBCO obtained from metal complexes heving large stability constants, such as HEDTA, EDTA, DTPA, and TTHA, had very fine and homogeneous particles. The critical current density of YBCO in a block of 1×4×15 mm^3 which was sintered at 880〜910℃ for 24 h, and then anealed at 500℃ in O_2 flow was estimated to be 500 A/cm^2 at 77 K in zero applied magnetic field.

• 社団法人応用物理学会の論文
• 1990-10-20

著者

• Okuyama Katsuro

  Faculty Of Engineering Yamagata University

• Ohshima Shigetoshi

  Faculty Of Engineering Yamagata University

• FUJISAWA Tadashi

  Faculty of Engineering, Yamagata University

• TAKAGI Akira

  Furukawa Electric Co. Ltd.

• Fujisawa Tadashi

  Faculty Of Engineering Yamagata University

関連論文

• Fabrication and Microstructure of All In-plane Aligned A-Axis Oriented Superconductor/Insulator/Superconductor Junctions
• In-Plane Orientation Control of C-Axis Oriented YBa_2Cu_3O_ Films on MgO Substrates by BaSnO_3 Buffer Layers
• In-plane Orientation of C-Axis Oriented YBa_2Cu_3O_x Films on MgO Substrates
• Structure and Resistivity of BaBiO_y, Ba_<1x>La_xBiO_3, and BaBi_<1x>La_xO_3 (Special Issue on High-Temperature Superconducting Electronics)
• Crystallization of Amorphous YBCO and BSCCO Thin Films by Zone-Melt Technique (Special Issue on High-Temperature Superconducting Electronics)
• Calcium Stearate Thin Films Evaporated onto NaCl
• Invited paper : Design and fabrication of compact superconducting filters and antennas using high quality YBCO films
• Temperature Dependence of the Surface Resistance of a Bi-Sr-Ca-Cu-O Whisker Measured by the Probe-Coupled Microstrip Resonator Method : Superconductors
• Critical Current Densities in Superconducting Y-Ba-Cu-O Prepared by Chelating Method
• Effect of Predeposited Ag, Sn, Bi, Al and Se Nucleation Centers on the Grain Growth of Evaporated Te Films
• Low-Temperature Grain Growth of Evaporated Te Films
• Hall Mobility of Evaporated Tellurium Films
• Annealing Effect in Tellurium Films
• In-plane Orientation of C-Axis Oriented YBa2Cu3Ox Films on MgO Substrates
• Self-Epitaxial Growth of Metastable A15 V3Al on Au-Coated Sapphire Substrates
• Preparation of Superconducting Y–Ba–Cu–O and Bi–Pb–Sr–Ca–Cu–O Compounds by Chelating Method

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