Processing and properties of QMG materials

Morita, Mitsuru; Sawamura, Mitsuru; Takebayashi, S.; Kimura, Kazuhiro; Teshima, Hidekazu; Tanaka, Masamoto; Miyamoto, K.; Hashimoto, M.

doi:10.1016/0921-4534(94)91350-1

Cited by 131 publications

(51 citation statements)

References 11 publications

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“…High temperature superconductors (HTS conductors) have been developed for high performance superconducting devices [1][2][3][4][5][6][7][8][9]. Understanding of mechanical, electric and magnetic properties of HTS conductors and improvements of evaluation techniques for these properties are important for the development of superconducting devices.…”

Section: Introductionmentioning

confidence: 99%

Stress–strain behavior under static loading in Gd123 high-temperature superconductors at 77K

et al. 2013

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Section: Introductionmentioning

confidence: 99%

Stress–strain behavior under static loading in Gd123 high-temperature superconductors at 77K

et al. 2013

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“…The texturing during growth difficulty is reduced by using, e.g. a magnetic field [1][2][3][4][5][6]. Two main advantages of the seed method are (i) that large monodomains can be grown up to a few centimeter wide and (ii) the orientation of the sample can be controlled by adjusting the orientation of the seed before the thermal cycle.…”

Section: Introductionmentioning

confidence: 99%

“…Two main advantages of the seed method are (i) that large monodomains can be grown up to a few centimeter wide and (ii) the orientation of the sample can be controlled by adjusting the orientation of the seed before the thermal cycle. In fact, disks and toroids have already been made through single or multi seeding techniques [3][4][5][6]. For deciding about the quality of a sample, beside comparing the microstructure of various samples one relies on measurements, like the (I,V) characteristics, the electrical resistance and the Meissner effect.…”

Section: Introductionmentioning

confidence: 99%

Magneto-transport characterization of Dy123 monodomain superconductors

et al. 2005

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The following report considers textured materials of the DyBa 2 Cu 3 O 7 type seeded with a Nd123 seed as initiator. They are grown with an excess 20% Dy211 phase on a Dy 2 O 3 substrate. We report chemical characterizations, electrical resistivity, thermoelectric power and thermal conductivity over a broad temperature range as a function of an applied magnetic field up to 6 T. We show that specific features appear on the magneto thermal transport properties different in these materials from those found in single crystals and polycrystalline samples. We propose that two vortex regimes can be distinguished in the mixed phase, -due to the intrinsic microstructure. We calculate the viscosity, entropy and figure of merit of the samples.

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“…We prepared two types of Gd-123 bulk; one is a standard bulk, and another is a densified bulk. The standard bulk was heat-treated in air [4], and the densified bulk of which the void density is very low was heat-treated in oxygen at the first melt stage then in air at the second crystal growth stage [12]. We name it a two-step regulated atmosphere heat treatment tentatively.…”

Section: Methodsmentioning

confidence: 99%

“…The melt-textured GdBa 2 Cu 3 O x (GdBaCuO, Gd-123) system superconductors with Gd 2 BaCuO 5 (Gd-211) which are grown by means of a top seeding and temperature gradient method have high potential for applied superconductivity, since they exhibit higher J c in high magnetic field compared to melt-textured YBaCuO (Y-123) superconductors [1][2][3][4][5]. Gd-123 bulk superconductor, therefore, is expected for large-scale applications such as flywheels, magnetic bearings, and magnetic separation, etc.…”

Section: Introductionmentioning

confidence: 99%