Synthesis of Bi2Sr2Ca1−xYxCu2Oy from Citrate Sol-Gel Precursors

Hiromasa Mazaki, Masato Kakihana, Hiroshi Yasuoka

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    Abstract

    We attempted synthesis of a single-phase Bi2Sr2Ca1−xYxCu2Oy (0 ≦ x ≦ 0.4) from citrate sol-gel precursors and the dependence of the superconducting transition on the hole concentration was studied. The main advantages of the sol-gel precursor method are the shorter reaction time, the elimination of some steps such as centrifugation and a fine control of pH. Powder X-ray diffraction analysis showed that the samples have a single phase, except for x = 0.1. The superconducting transition was measured in terms of complex susceptibility. The highest transition temperature TC(onset) was observed for the x = 0.1 sample, being 95.2 K. The results for five samples with different values of x are described.

    Original languageEnglish
    Pages (from-to)229-232
    Number of pages4
    Journaljournal of the japan society of powder and powder metallurgy
    Volume38
    Issue number2
    DOIs
    Publication statusPublished - 1991

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Industrial and Manufacturing Engineering
    • Metals and Alloys
    • Materials Chemistry

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