Effect of Pt Addition on Melt-Processed YBaCuO Superconductors

1 May 1991

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 30 (5A), L813
https://doi.org/10.1143/jjap.30.l813

Abstract

Platinum addition in precursors of melt processing could produce finely dispersed Y₂BaCuO₅ (211) inclusions of about 1 µm in YBa₂Cu₃O_x matrix. This fine dispersion of 211 resembles that of quench-and-melt-grown materials. The platinum-added sample exhibited a critical current density exceeding 2×10⁴A/cm² at 77 K and 1 T. Platinum is considered to enhance the nucleation of 211 which forms by the pertitectic reaction between Y₂O₃ and liquid phase.

Keywords

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