Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Fabrication of biaxially textured Ni substrate by line-focused infrared heating

선형 초점 적외선 가열에 의해 이축 집합조직화된 Ni 기판의 제조

  • 정준기 (창원대학교 산업기술연구원) ;
  • 김원정 (창원대학교 물리학과) ;
  • 정규동 (고려제강 중앙연구소) ;
  • 배원태 (경상대학교 신소재공학부) ;
  • 김철진 (경상대학교 신소재공학부)
  • Published : 2006.03.01
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Abstract

Desirable substrates for $YBa_2Cu_3O_{7-\delta}$ coated conductor are highly cube textured Ni or Ni-alloy tapes, which can be produced by cold rolling and recrystallization annealing. We have fabricated hi-axially textured pure Ni tapes for the application of coated conductors. The sintered Ni rod was cold-rolled into the thin tapes of $50{\mu}m$ thickness and the tapes were heat-treated for texture development with line-focused infrared heater. The temperature was maintained at $800\sim1050^{\circ}C$, using 1kW double ended linear halogen lamp in $96%Ar-4%H_2$ atmosphere The biaxially tortured Ni tapes were successfully formed by line-focused infrared heat treatment The texture of the annealed Ni tapes was analysed using the GADDS (general area detector diffraction system). The full width at half maximum values of phi and omega scan for the Ni tapes were less than $10^{\circ}$ and the grain size was $20-50{\mu}m$.

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References

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