Processing considerations for adding nanometer-scale oxides to enhance flux pinning in high-temperature superconductors | Zendy

Yue Xu | Zendy; K. C. Goretta | Zendy; M.M. Cuber | Zendy; M. L. Burdt | Zendy; Leihao Feng | Zendy; N. Chen | Zendy; U. Balachandràn | Zendy; Mingyu Xu | Zendy

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Processing considerations for adding nanometer-scale oxides to enhance flux pinning in high-temperature superconductors

Author(s) -

Yue Xu,

K. C. Goretta,

M.M. Cuber,

M. L. Burdt,

Leihao Feng,

N. Chen,

U. Balachandràn,

Mingyu Xu

Publication year - 1997

Language(s) - English

Resource type - Reports

DOI - 10.2172/554893

Subject(s) - superconductivity , nanometre , materials science , flux pinning , pellets , oxide , flux (metallurgy) , high temperature superconductivity , melting temperature , condensed matter physics , chemical engineering , nanotechnology , metallurgy , composite material , physics , engineering

Several nanometer-scale oxide inclusions were added to Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} high-temperature superconductors to determine their effectiveness in creating intragranular flux-pinning sites. Powder pellets were fabricated and heat treated by partial-melt processing. Effects of the additives on melting response, superconducting properties, and microstructural development were examined. Al{sub 2}O{sub 3} additions exhibited the most promise for forming stable pinning centers, ZrO{sub 2} and SnO{sub 2} additions were moderately promising, TiO{sub 2}, Fe{sub 2}O{sub 3}, and ZnO additions were less promising, and Y{sub 2}O{sub 3} additions destroyed superconductivity

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