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This study shows that homogeneous composite compacts with improved superconducting and mechanical properties can be successfully prepared from pure Me–HTSC powders (Me=Ag, Cu, Al; HTSC=YBA 2 Cu 3 O 7−x ). Composites were produced under the following conditions: the mass fraction of the metal phase was in the range 2.5–40 wt%, the compacting pressure was 30 kN/cm 2...
This work presents the results obtained for a high-temperature superconducting ceramic, of the Y-Ba-Cu-O system, synthesized by solid state reaction from Y 2 O 3 , Y, BaCO 3 and CuO, in one case, and Y instead of Y 2 O 3 in the other. Its properties and structure depend on the choice of the starting states of Y. Use of elemental Y as a starting component made...
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