한국초전도ㆍ저온공학회논문지 (Progress in Superconductivity and Cryogenics)

  • 제19권3호
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  • Pages.33-39
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  • 2017
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  • 1229-3008(pISSN)
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  • 2287-6251(eISSN)
한국초전도저온학회 (The Korean Society of Superconductivity and Cryogenics)
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Effects of seed geometry on the crystal growth and the magnetic properties of single grain REBCO bulk superconductors

  • 투고 : 2017.08.08
  • 심사 : 2017.09.05
  • 발행 : 2017.09.30
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초록

This study presents that the orientation and the geometry of seed affect on the growth behavior of melt processed single grain REBCO bulk superconductor and its magnetic properties. The effects of seed geometry have been investigated for thin $30mm{\times}30mm$ rectangular powder compacts. Single grain REBCO bulk superconductors have been grown successfully by a top seed melt growth method for 8-mm thick vertical thin REBCO slab. Asymmetric structures have been developed at the front surface and at the rear surface of the specimen. Higher magnetic properties have been obtained for the specimen that c-axis is normal to the specimen surface. The relationships between microstructure, grain growth and magnetic properties have been discussed.

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참고문헌

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