Development of long REBCO coated conductors with artificial pinning centers by using MPMT–PLD method

Ibi, A.; Miyata, S.; Kuriki, R.; Kobayashi, Hirokazu; Fukushima, Hiroyuki; Kinoshita, A.; Kato, Takumi; Hirayama, Tsukasa; Yamada, Yutaka; Shiohara, Yuh

doi:10.1016/j.physc.2008.05.064

Cited by 23 publications

(5 citation statements)

References 13 publications

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“…Drastic improvements in the length and the current carrying capability of HTS-CC have been accomplished for last several years [2][3][4][5][6][7]. The issues in this field is shifting to securing uniformity and reproducibility of the manufacturing processes, improving flux pinning properties (in-field current carrying properties) [8][9][10][11][12][13] and reducing ac (alternate current) losses [14][15][16][17]. When the HTS-CC is used for ac applications, however, the ac-loss of the conductor becomes as important a factor as the high transport current in a high magnetic field.…”

Section: Introductionmentioning

confidence: 99%

The comparative study of magnetic properties for YBCO coated conductors based on RABiTS and IBAD templates

Song

Kang

Kim

et al. 2010

Physica C: Superconductivity and its Applications

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Section: Introductionmentioning

confidence: 99%

The comparative study of magnetic properties for YBCO coated conductors based on RABiTS and IBAD templates

Song

Kang

Kim

et al. 2010

Physica C: Superconductivity and its Applications

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“…Generally, in typical contact systems heating from the underside of the tape, the surface temperature of a film decreases according to the increase in emissivity with surface roughness of the film [6], the decrease in heat transmission by a thick growing film and so on, during deposition. Furthermore, it is difficult to keep the surface temperature constant during deposition because of the indirect heating from the underside of the tape [7]. On the other hand, the hot-wall heating system can easily keep the surface temperature constant due to the direct radiant heating of the surface of the tape and insulation effectiveness of the closed box structure.…”

Section: Resultsmentioning

confidence: 99%

High-speed deposition of high-quality RE123 films by a PLD system with hot-wall heating

Kakimoto

Igarashi

Hanada

et al. 2009

Supercond. Sci. Technol.

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We have studied the use of a hot-wall heating system for producing GdBa 2 Cu 3 O 7−X (Gd123) films with large critical current (I c ), stably, at high speed, by a pulsed laser deposition (PLD) method. We achieved a material yield from the PLD system with hot-wall heating of about 50% through optimization of the evaporation conditions. With the PLD system, we were able to fabricate a Gd123 film about 20 cm long with a high I c of 997 A (77 K, self-field) at about 6 μm thickness. The maximum I c that we achieved for a Gd123 film about 2 cm long was 1040 A (77 K, self-field) at about 6 μm thickness. Furthermore, we were able to form a Gd123 film about 1 μm thick and 20 cm long with an I c of 352 A (77 K, self-field) at a high speed of 60 m h −1 using high laser power. For the production of long conductors coated with RE123 (REBa 2 Cu 3 O 7−X , where RE stands for rare earth) using hot-wall heating, it was found that RE123 coated conductors over 100 m long with I c of over 200 A had uniform I c distributions with ±2% variations in the direction of the length.

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“…Figure 13 shows the thickness dependences of the in-field I c of PLD- processed CCs. 3,38,39) BaHfO 3 (BHO) was found to work as a much more effective artificial pinning center (APC) than BaZrO 3 (BZO). The introduced BHO forms fine nanorods similarly to BZO APC, as shown in Fig.…”

Section: Superconducting Ccs For Electric Power Systemsmentioning

confidence: 99%

Overview of Materials and Power Applications of Coated Conductors Project

Shiohara

Taneda

Yoshizumi

2011

Jpn. J. Appl. Phys.

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There are high expectations for coated conductors in electric power applications such as superconducting magnetic energy storage (SMES) systems, power cables, and transformers owing to their ability to contribute to stabilizing and increasing the capacity of the electric power supply grid as well as to reducing CO 2 emission as a result of their high critical-current characteristics. Research and development has been performed on wires/tapes and electric power devices worldwide. The Materials and Power Applications of Coated Conductors (M-PACC) Project is a fiveyear national project in Japan started in 2008, supported by the Ministry of Economy, Trade and Industry (METI) and the New Energy and Industrial Technology Development Organization (NEDO), to develop both coated conductors that meet market requirements and basic technologies for the above-mentioned power applications using coated conductors. In this article, research and development results are reviewed and compared with the interim/final targets of the project, and future prospects are discussed. #

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Development of long REBCO coated conductors with artificial pinning centers by using MPMT–PLD method

Cited by 23 publications

References 13 publications

The comparative study of magnetic properties for YBCO coated conductors based on RABiTS and IBAD templates

The comparative study of magnetic properties for YBCO coated conductors based on RABiTS and IBAD templates

High-speed deposition of high-quality RE123 films by a PLD system with hot-wall heating

Overview of Materials and Power Applications of Coated Conductors Project

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