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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25275

    Title: Superconductivity of the single phase La4-xCaxBa3Cu7Oy system
    Other Titles: 單相La4-xCaxBa3Cu7Oy系統的超導性
    Authors: Wu, D. S.;高惠春;Kao, H. C. I.;Wu, M. K.;王啟銘;Wang, C. M.
    Contributors: 淡江大學化學學系
    Date: 1993-09-10
    Issue Date: 2009-12-01
    Publisher: Amsterdam: Elsevier BV * North-Holland
    Abstract: The reaction of Bi1.8Pb0.4Ca2Sr2Cu3Oy powder in water was studied quantitatively. It was found that the [H3O+] ion would act as a catalyst in this reaction and the initial rate equation was , where [A] represented the surface area of the superconducting powder. The rate constant, k, obtained at 10, 25 and 40°C was 3.98, 8.8 and 19.6 × 10-4 mol min-1 cm-2 M0.8, respectively. The activation energy and pre-exponential factor calculated from the Arrhenius equation were respectively 39.1 kJ mol-1 and 6.4 × 103 mol min-1 cm-2 M0.8.
    Relation: Physica C: superconductivity 214(3-4), pp.261-264
    DOI: 10.1016/0921-4534(93)90824-A
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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