• 제목/요약/키워드: Ni tapes

검색결과 59건 처리시간 0.021초

니켈 분말을 이용한 양축정렬된 nickel tape의 제조 (Fabrication of bi-axially textured nickel tape using nickel powder)

  • Kang, S.M.;Kim, H.S.;Lee, H.G.;Jung, C.H.;Hong, G.W.
    • Progress in Superconductivity
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    • 제3권1호
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    • pp.111-114
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    • 2001

  • Short-length and long-length Ni tapes were fabricated by powder processing, cold rolling and recrystallizatioon heat treatment. In the case of the short-length Ni tape, both in-plane and out-of-plane texture were less than $10^{\circ}$. In the case of the long-length Ni tape, the degree of texture is lower than that of the short-length Ni tape. The relationship between the texture formation and the processing parameter is reported.

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Relations between tensile stresses and critical current densities of coated conductors

  • Yoo, Ja-Eun;Youm, Do-Jun
    • 한국초전도학회:학술대회논문집
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    • 한국초전도학회 2000년도 High Temperature Superconductivity Vol.X
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    • pp.136-139
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    • 2000

  • The relations between tensile stresses and critical current densities (J$_c$) of coated conductors were measured. Around 320 MPa of tensile stress, the critical current densities of coated conductor fabricated on pure Ni tape were reduced to zero at 77K, where J$_c$ for zero stress was order of 10$^5$A/cm. The critical tensile stress was much enhanced for the coated conductors fabricated on NiCr alloy tapes. However fabrication conditions for the growth on such alloys are much different from those on the pure Ni and it was not easy to get good textures and large critical currents. The detailed fabrication methods on those alloys will be presented.

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세라믹 선재의 전기 구조적 특성

  • 이상헌;이영희
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2005년도 춘계학술대회 논문집
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    • pp.54-56
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    • 2005

  • Fabrication of c-axis oriented $(Hg_{0.75}Rc_{0.25})Ba_2Ca_2Cu_3O_y$ thick fabricated has been attempted using Ni substrates with the buffer layer of Cr or NiO. Coexistence of $(Hg_{0.75}Rc_{0.25})Ba_2Ca_3Cu_4O_y$ pellets wad found to stabilize $(Hg_{0.75}Rc_{0.25})Ba_2Ca_2Cu_3O_y$ phase of the tape. The c-axis oriented tapes were reproducibly obtained on the NiO/Ni substerate and they recorded high $B_{irr}$ at 77K.$(Hg_{0.75}Rc_{0.25})Ba_2Ca_2Cu_3O_y$ 1223.

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