T. Kaneko

The University of Tokyo

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Kazuhiko Hayashi

Osaka University

K. Sato

The University of Tokyo

S. Kobayashi

Ashikaga University

H. Yamauchi

International Superconductivity Technology Center

M. Ueyama

Sumitomo Electric Industries (Japan)

N. Ayai

Sumitomo Electric Industries (Japan)

H. Takei

Hitachi (Japan)

J. Fujikami

Sumitomo Electric Industries (Japan)

Nobuhiro Saga

Sumitomo Electric Industries (United States)

Shōji Tanaka

Kyoto University Hospital

Cooperative Institutions

The University of Tokyo

Tohoku University

Osaka University

Sumitomo Electric Industries (Japan)

Nagoya University

Kyoto University

International Superconductivity Technology Center

Sumitomo Electric Industries (United States)

Toshiba (Japan)

National Institute of Advanced Industrial Science and Technology

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AC Loss of Transposed HTS Cable Conductors

Springer eBooks (1998)

Nobuhiro Saga S. Hahakura J. Fujikami M. Ueyama T. Kaneko

10.1007/978-4-431-66879-4_211

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Citations (4)

New copper oxides, (Ba,Ca)8CaCu4O13+Z

Physica C Superconductivity (1991)

K. Hanada Takahiro Wada Ataru Ichinose T. Kaneko H. Yamauchi

Orthorhombic crystal system

Lattice constant

Copper oxide

Powder Diffraction

Lattice (music)

10.1016/0921-4534(91)92108-n

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Citations (3)

Development of the industrial scale Ag/Bi-2223 tape

Physica C Superconductivity (2002)

J. Fujikami T. Kaneko N. Ayai S. Kobayashi Kazuhiko Hayashi

Liquid nitrogen

Alternating current

10.1016/s0921-4534(02)01585-x

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Citations (8)

Mechanical Properties of Y-Ba-Cu-O Blocks Welded by Silver-Added Y-Ba-Cu-O Solder

T. Kaneko Kazuki Iida Tomio Kôno Naoto Sakai M. Murakami

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Development of Ag-sheathed Bi-2223 superconducting wires and their applications

IEEE Transactions on Applied Superconductivity (2001)

Kazuhiko Hayashi Takeshi Hikata T. Kaneko M. Ueyama A. Mikumo

Silver-sheathed multifilamentary BiPbSrCaCuO 2223 superconducting wires with long length and high Jc of over 3/spl times/10/sup 4/ A/cm (77.3 K, 0 T) were developed by using the powder-in-tube method. For future industrial applications, high Jc with high Ic wires, high strength wires and low AC loss wires were also developed for large scale magnet applications and electric apparatus for AC use. In the case of AC conductor, twist effect was investigated in order to reduce the wire AC loss, PVF coating technology was applied to high strength wire. PVF coating technology made it possible to obtain amperage parallel conductor with low AC loss, because each strand is electrically insulated. As a progress of technology, we could fabricate many application prototypes. In the high amperage conductor application, current leads and cable conductors were developed. In the magnet application, pancake magnets cooled by GM refrigerator and operated at around 20 K were developed, We have also developed the transformer as an AC application operated in the liquid nitrogen.

Liquid nitrogen

10.1109/77.919763

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Citations (36)

Development of Bi-2223 superconducting wires

Physica C Superconductivity (2001)

S. Kobayashi T. Kaneko N. Ayai Kazuhiko Hayashi H. Takei

10.1016/s0921-4534(01)00523-8

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Citations (14)

Photoelectron Spectroscopic Study of Tl-2201, Tl-2212, Tl-2223, and Tl-2234 High-Tc Superconductors

Springer eBooks (1993)

R. Itti Makoto Itoh T. Kaneko Kazuto Ikeda Jun‐ichi Fujita

Density of states

10.1007/978-4-431-68305-6_16

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Joining of different Y–Ba–Cu–O blocks

Physica C Superconductivity (2003)

K. Iida T. Kono T. Kaneko K. Katagiri N. Sakai

10.1016/j.physc.2003.09.083

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Citations (13)

Structure and Superconducting Properties of

H. Yamauchi Takahiro Wada Ataru Ichinose Yuji Yaegashi T. Kaneko

A variety of new oxide superconductors that can be represented by the fonnula, [(LnI .• Ln· .)I/'1(B ..... ,Sr,)I/3CeI/J.CU,O. (Ln, Ln·= lanthanide elements), have been prepared. The crystallographic structures cf the oxides were a1l tetragonal and of the (Ln+, Ce).{Ln+' Ba).Cu,O. (Ln+ = Nd, Sm or Eu) type which had been previously discovered by Sawa et al. As the Sr content, y, increased when Ln=Ln·=Nd, the oxygencontent, z, monotonically increased and the superconducting transition temperature, Te' varied exhibiting a maximum. When z was controlled direcdy by means ofhigh oxygen pressure sintering techniques, Tc was changed accordingly. Tc's of sampies with different combinations of Ln and Ln· and different values of x and y were found to depend on the magnitude of the bond valence sum for a Cu atom located in the bottom plane of the Cu-Os pirarnid. Transport and magnitization measurements were carried out to investigate the magnetic fielddependence of superconducting properties and to determine the superconductivity material parameters. The Hall coefficients were positive below room temperature and varied yielding a maximum with respect to temperature.

Tetragonal crystal system

Transition temperature

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Superconducting Properties of (GdCe)4(LaBaSr)4Cu6O18.8

Springer eBooks (1990)

T. Kaneko Takahiro Wada Ataru Ichinose Yuji Yaegashi S. Ikegawa

Critical field

10.1007/978-4-431-68117-5_135

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Citations (2)