• 제목/요약/키워드: coated conductors

검색결과 210건 처리시간 0.043초

YBCO CC 적층 및 BSCCO tape 적층선재에서 수직자화 손실 값을 이용한 임의 방향 자화손실 평가 (Magnetization Loss Characteristics at Arbitrary Directional Magnetic Field by Perpendicular Magnetization Loss in YBCO CC and BSCCO Stacked Conductors)

  • 이지광;임형우;박명진;차귀수
    • 전기학회논문지
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    • 제56권2호
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    • pp.282-288
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    • 2007

  • Magnetization loss of high temperature superconductoring BSCCO tape and YBCO coated conductor(YBCOCC) is most important issue in the development of superconducting power devices. In this paper, the measured results of magnetization losses under various angles of external magnetic field in BSCCO tape stacked conductors and YBCO CC stacked conductors are presented and compared with each other. Also, we present the compared results of magnetization losses measured at arbitrary reaction magnetic fields and analyzed with perpendicular magnetic field components of those. The results show that magnetization losses of YBCO CC single and stacked conductors agree well with the analyzed value by it's perpendicular magnetic field component, but BSCCO single and stacked conductors are not.

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R&D trends of high current REBCO conductor

  • Oh, Sang-Soo
    • 한국초전도ㆍ저온공학회논문지
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    • 제24권1호
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    • pp.1-7
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    • 2022

  • So far, large-scale scientific devices such as nuclear fusion tokamaks and high energy circular accelerators were constructed using high-current conductors made of metallic superconducting wires. Recently, as REBCO superconducting wires usable in high magnetic fields have been developed by several companies, researchesto apply high current cable type REBCO conductors to next-generation large superconducting magnets were also started. High critical currents of several kA or more in high magnetic fields have been successfully demonstrated on test samples of REBCO cable conductors by several research groups. In this review article, the main features and properties of the representative high current REBCO conductors such as CORC(Conductor On Round Core), TSTC(Twisted Stacked-Tape Cable) and RACC(Roebel-Assembled Coated Conductor), which are currently being developed at abroad are briefly introduced. Research activities of high-current density REBCO MHOS(Multi HTS layers on One Substrate) conductor at KERI, whose structure is different from other cable type REBCO conductors are also shortly introduced.

  • https://doi.org/10.9714/psac.2022.24.1.001 인용 PDF KSCI

MOD-processed YBCO coated conductor on the IBAD-MgO template

  • Shin, Geo-Myung;Ko, Rock-Kil;Song, Kyu-Jeong;Yoo, Jai-Moo;Oh, Sang-Soo;Moon, Seung-Hyun;Yoo, Sang-Im
    • 한국초전도ㆍ저온공학회논문지
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    • 제9권4호
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    • pp.16-18
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    • 2007

  • We report the results of MOD-processed YBCO coated conductors on the IBAD-MgO template. The precursor solution was coated on the $CeO_2-buffered$ IBAD-MgO template using a slot-die coating method, calcined at a temperature of $550^{\circ}C$, and fired at high temperatures for 2.5 h in a reduced oxygen atmosphere. The $J_C$ value of YBCO coated conductors was found to be very sensitive to the microstructure, and thus higher $J_C$ value could be achieved when the in-plane texture was higher and the difference in $T_{C,zero}$. was negligible. Optimally processed YBCO coated conductor exhibited $J_C$ value of $0.75MA/cm^2$ at 77 K in self-field, which might be due to somewhat depressed $T_{C,zero}$ of 87.3 K caused by possible $Sm^{3+}$ substitution on the $Ba^{2+}$ site.

  • https://doi.org/10.9714/psac.2007.9.4.016 인용 PDF KSCI