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MgB2 초전도 특성에 대한 나노 FexC 첨가 효과 KCI 등재

Effects of Nano FexC Addition on Superconducting Properties of MgB2

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한국분말야금학회지 (Journal of Korean Powder Metallurgy Institute)
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

The effects of nano addition to superconducting properties of processed superconductors was examined. 0.1 wt.% and 1 wt.% nano powders were mixed with boron and magnesium powders by ball milling. The powder mixtures were made into pellets by uniaxial pressing. The pellets were heat-treated at in argon atmosphere for formation. It was found by powder X-ray diffraction that the raw powders were completely converted into after the heat treatment. The superconducting transition temperature () and critical current density (), estimated from susceptibility-temperature and curves, were decreased by nano addition. The and decrease by nano addition are attributed to the incorporation of iron and carbon with lattices (Fe substitution for Mg and C substitution for B) due to the high reactivity of the nano powder.

저자
  • 이동건 | Lee Dong-Gun
  • 이지현 | Lee Ji-Hyun
  • 전병혁 | Jun Byung-Hyuk
  • 박순동 | Park Soon-Dong
  • 엄영랑 | Uhm Young-Rang
  • 박해웅 | Park Hai-Woong
  • 김찬중 | Kim Chan-Joong