본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Journal of electrical engineering & technology v.1 no.3, 2006년, pp.371 - 375   피인용횟수: 1

Electrical Properties of a High Tc Superconductor for Renewed Electric Power Energy

Lee Sang-Heon    (Department of Electronic Engineering, Sun Moon University  );
  • 초록

    Effects of $Ag_2O$ doping on the electromagnetic properties in the BiSrCaCuO superconductor. The electromagnetic properties of doped and undoped $Ag_2O$ in the BiSrCaCuO superconductor were evaluated to investigate the contribution of the pinning centers. It was confirmed experimentally that a larger amount of magnetic flux was trapped in the $Ag_2O$ doped sample than in the undoped one, indicating that the pinning centers of magnetic flux are related closely to the occurrence of the magnetic effect. We have fabricated superconductor ceramics by the chemical process. A high Tc superconductor with a nominal composition of $Bi_2Sr_2Ca_2Cu_3O_y$ was prepared by the organic metal salts method. Experimental results suggest that the intermediate phase formed before the formation of the superconductor phase may be the most important factor. The relation between electromagnetic properties of Bi HTS and the external applied magnetic field was studied. The electrical resistance of the superconductor was increased by the application of the external magnetic field. But the increase in the electrical resistance continues even after the removal of the magnetic field. The reason is as follows; the magnetic flux due to the external magnetic field penetrates through the superconductor and the penetrated magnetic flux is trapped after the removal of the magnetic flux. During the sintering, doped $Ag_2O$ was converted to Ag particles that were finely dispersed in superconductor samples. It is considered that the area where normal conduction takes place increases by adding $Ag_2O$ and the magnetic flux penetrating through the sample increases. The results suggested that $Ag_2O$ acts to amplify pinning centers of magnetic flux, contributing to the occurrence of the electromagnetic properties.


  • 주제어

    Bi HTS .   Electric power .   Electrical property .   Magnetic force .   Magnetic flux.  

  • 참고문헌 (11)

    1. M. Murakami, T. Oyama, H. Fujimoto, T. Taguchi, S.Gotoh, Y. Shiohara, N. Koshizuki, and S. Tanaka, 'Large Levitation Force due to Flux Pinning in YBaCuO Superconductors Fabricated by Melt- Powder-Melt-Growth Process ', Jpn. J. Appl. Phys., Vol. 29, No. 11, L1991, 1990 
    2. M. K. Wu, J. R. Ashburn, C. J. Torng, P. H. Hor, R. L. Meng, L. Lao, Z. J. Huang, Y. Q. Wang, and C. W. Chu, 'Superconductivity at 93 K in a New Mixedphase Y-Ba-Cu-O Compound System at Ambient Pressure', Phys. Rev. Lett., Vol. 58, No. 9, p. 908, 1987 
    3. Y. Iijima, M. Hosaka, N. Tanabe, N. Sadakata, T. Saitoh, O. Kohno, and K. Takeda, J. Mater. Res., 'Biaxial alignment control of YBCO films on random Ni-based alloy with textured YSZ films formed by ion-beam-assisted deposition', Vol. 12, p. 2913, 1997 
    4. S. Jin, T. H. Tiefel, R. C. Sherwood, R. B. van Dover, M. E. Davis, G. W. Kammlott, and R. A. Fastnacht, 'Melt-textured Growth of Polycrystalline $YBa_2Cu_3O_{7-\delta}$- with High Transport Jc at 77 K', Phys. Rev. B, Vol. 37, No. 13, p. 7850, 1988 
    5. G. W. Kammlott, T. H. Tiefel, and S. Jin, 'Recovery of 90 K Superconductivity in Transition-melt-doped Y-Ba-Cu-O', Appl. Phys. Lett., Vol. 56, No. 24, p. 2459, 1990 
    6. S.X.Dou, 'Improvement of Critical Current Density in YBa2Cu3O6+x Superconductor by Ag Addition', Jpn. J. Appl. Phys., Vol. 29, No. 9, p. L1621, 1990 
    7. K.Y.Lee, J.S.Yang, Y.S.Choi, D.H.Park, 'Specific Heat and Thermal Conductivity Measurement of XLPE Insulator and Semiconducting Materials', KIEE Transactions of the Korean Institute of Electrical Engineers, Vol. 55, No. 1, p. 6, 2006     
    8. G.H.Pack, J.C.Lee, M.K.Hwang, Y.S.Choi, D.H.Park, 'Xe Plasma Property with Flat Lamp by Langmuir Probe', KIEE Transactions of the Korean Institute of Electrical Engineers, Vol. 55, No. 1, p. 50, 2006     
    9. Y. Dimitriev and E. Kashchieva, 'Charge-density transport properties', J. Mater. Sci., Vol. 10, No. 2, p. 1419, 1995 
    10. H. Asaoka and H. Takei, 'Crystal Growth Mechanism of $YBa_2Cu_3O_x$ from Coexisting Region of Solid with Melt', Jpn. J. Appl. Phys., Vol. 33, No. 7A, p. 923, 1994 
    11. P. N. Peters, R. C. Sick, E. W. Urban, C. Y. Huang, and M. M. Wu, 'Observation of Enhanced Properties in samples of Silver Oxide doped $YBa_2Cu_3O_7$', Appl. Phys. Lett., Vol. 52, p. 2066, 1988 
  • 이 논문을 인용한 문헌 (1)

    1. 2009. "" Transactions on electrical and electronic materials, 10(6): 217~221     

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
유료다운로드

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기