Biaxially aligned YBa2Cu3O7−x thin film tapes

Iijima, Y.; Tanabe, Nari; Ikeno, Y.; Kohno, O.

doi:10.1016/0921-4534(91)91104-c

Cited by 94 publications

(33 citation statements)

References 6 publications

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“…Since the discovery of a high temperature superconductor [1][2][3], lots of effort has been made to realize the HTS applications [4][5][6][7][8][9][10][11][12][13][14][15]. Among the applications, those using the HTS tape are expected as the promising ones, since the tapes could give a flexible shape for variable performances corresponding to the applications.…”

Section: Introductionmentioning

confidence: 99%

Progress in R＆D of coated conductor in M-PACC project

Izumi¹,

Ibi²,

Nakaoka³

et al. 2014

Progress in Superconductivity and Cryogenics

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The five-year national project in Japan for R&D of coated conductors and applications, named as the Materials and Power Applications of Coated Conductors (M-PACC) project, was finished at the end of FY2013. The project consists of four sub-themes as cable, transformer, SMES and coated conductors. In the theme of coated conductors, the fabrication process had been developed to satisfy the requirements from the applications such as in-field I c performance, low AC loss in the long tapes etc. Through the project, the remarkable progress was achieved as follows; a high in-field minimum I c value over 54A/cm-width under 3T at 77K was realized in a 200m long EuBCO tape with artificial pinning centers of BaHfO 3 by the pulsed laser deposition (PLD) technique on the IBAD template. On the other hand, the AC loss reduction was confirmed in the tapes fabricated by both PLD and the metal organic deposition (MOD) techniques by scribing 100m tapes into 10-filamments. Additionally, the mechanism of the delamination phenomenon was systematically investigated and the strength was improved by eliminating the origins of the weak points in the films. Through the development, all targeted goals were accomplished and the several results were appreciated as a world champion data.

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Section: Introductionmentioning

confidence: 99%

Progress in R＆D of coated conductor in M-PACC project

Izumi¹,

Ibi²,

Nakaoka³

et al. 2014

Progress in Superconductivity and Cryogenics

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“…Long-length REBa 2 Cu 3 O 7Àx (RE-123) conductors with high I c and J c have been fabricated by using a reel-to-reel system in the world, after an ion-beam-assisted deposition (IBAD) was developed for RE-123 conductors using yttrium stabilized zirconia (YSZ), which have fluorite structures [1,2]. Then, it is discovered that MgO and TiN align biaxially in nm thickness by IBAD [3,4], and recently long-length IBAD-MgO films are produced at a rate of hundreds meter per hour [5].…”

Section: Introductionmentioning

confidence: 99%

Long-length IBAD-MgO buffer layers for high performance RE-123 coated conductors by a large ion beam source

Hanyu

Tashita

Hayashida

et al. 2010

Physica C: Superconductivity and its Applications

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“…Two different routes have been developed to realize biaxially textured microstructure in a RE-123 film. In one route, biaxially-aligned RE123 film is achieved by utilizing textured buffer layers on non-textured substrates such as IBAD (Ion Beam Assisted Deposition) [2] and ISD (Inclined Substrate Deposition) [3], and in the other one it is obtained using RABiTS (Rolling Assisted and Biaxially Textured Substrate) [4]. Hastelloy has been applied to the IBAD and ISD process and this leads to high stress tolerance in the coated conductors.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Strain Tolerance in RE-123 Coated Conductors by Controlling the Yielding Behavior of Hastelloy C-276 Substrates

Sugano

Osamura

Prusseit³

et al. 2007

IEEE Trans. Appl. Supercond.

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Mechanical properties of Hastelloy C-276 substrate with different pre-treatment were investigated. Discontinuous yielding was observed in the solution treated substrate after annealing at the maximum process temperature of IBAD and ISD. In the smooth rolled substrates, yield strength higher than 1 GPa can be attained and even after annealing continuous yielding can be maintained. Annealing enlarges elastic limit by pinning of the mobile dislocations. Microstructure observation using transmission electron microscopy shows that two kinds of candidates for the pinning site of the dislocations exist such as precipitates and short range ordering region in the discontinuous yielding substrate. Improvement of strain at quenching was confirmed by utilizing continuous yielding substrate with higher elastic limit.

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Biaxially aligned YBa2Cu3O7−x thin film tapes

Cited by 94 publications

References 6 publications

Progress in R＆D of coated conductor in M-PACC project

Progress in R＆D of coated conductor in M-PACC project

Long-length IBAD-MgO buffer layers for high performance RE-123 coated conductors by a large ion beam source

Improvement of Strain Tolerance in RE-123 Coated Conductors by Controlling the Yielding Behavior of Hastelloy C-276 Substrates

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