한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제16권6호
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  • Pages.522-531
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  • 2003
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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Bi1.84Pb0.34Sr1.91Ca2.03Cu3.06O10+δ(110 K 상)산화물 고온초전도체에 Mg 첨가에 따른 영향

Effect of Mg Additive in the Bi1.84Pb0.34Sr1.91Ca2.03Cu3.06O10+δ(110 K phase) Superconductors

  • 이민수 (한밭대학교 환경보전방재연구소)
  • 발행 : 2003.06.01
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초록

Samples with the nominal composition, B $i_{1.84}$P $b_{0.34}$S $r_{1.91}$C $a_{2.03}$C $u_{3.06}$ $O_{10+{\delta}}$ high- $T_{c}$ superconductors containing MgO as an additive were fabricated by a solid-state reaction method. Samples with MgO of 5~30 wt% each were sintered at 820~86$0^{\circ}C$ for 24 hours. The structural characteristics, critical temperature, grain size and image of mapping with respect to MgO contents were analyzed by XRD(X-Ray Diffraction), SEM(Scanning Electron Microscope) and EDS(Energy dispersive X-ray spectrometer) respectively. As MgO contents increased, intensity of MgO Peaks and ratio of Bi-2212 phase in superconductors intensified and the proportion of the phase transition from Bi-2223 to Bi-2212 was increased.

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