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Title: Processing study of high temperature superconducting Y-Ba-Cu-O ceramics

Conference · · Advanced Ceramic Materials; (USA)
OSTI ID:5058513

Processing of the YBa{sub 2}Cu{sub 3}O{sub 6+x} superconducting phase by employing different precursor powder preparation techniques (ball milling, attrition milling) and samples formed by different sintering conditions are discussed. The superconducting phase has been identified by powder x-ray diffraction. The effect of different powder processing and pressing conditions on the structure, density, resistivity and a.c. magnetic susceptibility were studied. Though there is no variation in T{sub c} for all the samples, attrition milled samples show a much lower resistance and less temperature dependence compared to ball milled samples above the superconducting transition temperature up to room temperature. Ball milled samples were loosely packed with more voids compared to attrition milled samples which are more densely packed with a needle-like structure.

OSTI ID:
5058513
Report Number(s):
CONF-8704372-; CODEN: ACEME; TRN: 90-006865
Journal Information:
Advanced Ceramic Materials; (USA), Vol. 2:3B; Conference: Ceramic superconductors, Pittsburgh, PA (USA), 26-30 Apr 1987; ISSN 0883-5551
Country of Publication:
United States
Language:
English