Oxygen Relief/Absorption and Superconductivity of Bi-Pb-Sr-Ca-Cu-O Compounds

J Mater Sci Technol ›› 1990, Vol. 6 ›› Issue (6): 431-434.

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Oxygen Relief/Absorption and Superconductivity of Bi-Pb-Sr-Ca-Cu-O Compounds

QIN Zuoxiang;ZHANG Yansheng;ZHU Naiping Department of Materials Engineering,Dalian Railway Institute,Dalian,116022,China.Institute of Metal Research,Academia Sinica,Shenyang,110015,China.

Received:1990-11-28 Revised:1990-11-28 Online:1990-11-28 Published:2009-10-10

Abstract

Abstract: The oxygen relief/absorption,superconduc— tivity and structure of(Bi_(1-x)Pb_x)_2Sr_2Ca_2— Cu_3O_y compounds have been studied by TGA, electrical resistance measurement and X-ray diffraction.The amount of oxygen which can be re- leased and superconductivity of the compounds are correlative to Pb content.The release of oxygen in- creases when x less than 0.2 and decreases when x exceeds 0.2 with increasing x.The appropriate con- tent of Pb for superconductivity is in the range of 0.1

Key words: oxygen relief/absorption, superconductivity, oxygen content, Bi-Pb-Sr-Ca-Cu-O compounds

QIN Zuoxiang;ZHANG Yansheng;ZHU Naiping Department of Materials Engineering,Dalian Railway Institute,Dalian,116022,China.Institute of Metal Research,Academia Sinica,Shenyang,110015,China.. Oxygen Relief/Absorption and Superconductivity of Bi-Pb-Sr-Ca-Cu-O Compounds[J]. J Mater Sci Technol, 1990, 6(6): 431-434.

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Oxygen Relief/Absorption and Superconductivity of Bi-Pb-Sr-Ca-Cu-O Compounds

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