한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

Peculiarities of SHS and solid state synthesis of $ReBa_{2}Cu_{3}O_{7-x}$ materials

  • Sho, Dea-Wha (Myongji University) ;
  • Li, Yingmei (Myongji University) ;
  • Cho, Yong-Joon (Myongji University) ;
  • Kim, Tae-Wan (Myongji University) ;
  • Korobova, N. (Combustion Problems Institute) ;
  • Isaikina, O. (Combustion Problems Institute) ;
  • Mansurov, Z. (Combustion Problems Institute) ;
  • Baydeldinova, A. (Combustion Problems Institute) ;
  • Ksandopoulo, G. (Combustion Problems Institute)
  • 발행 : 2001.07.01
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초록

The peculiarities of using Self-propagating High-temperature Synthesis (SHS) and solid state phase synthesis for production of high temperature superconductor materials are discussed. Oxide superconductors with general formula $ReBa_2$$Cu_3$$O_{7-x}$ (Re= Y, Yb, Sm, Nd) have been made with using barium oxide initial powder instead of traditional barium carbonate. X-ray powder diffraction showed a single phase orthorhombic perovskite structure was produced in all reactions. Phenomena observed during the grinding of the reactant mixture are presented. Mechano-chemical activation - as a pretreatment of the reactant mixture - strongly influences the kinetic parameters, the reaction mechanism, and the composition and structure of the final product.

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