Fabrication of high-performance YBa2Cu3Oy melt-textured bulks with selective grain growth

Abstract

Abstract We developed a simple single-direction melt growth for the fabrication of high-performance REBa2Cu3O y (RE: rare earth element) melt-textured bulks with selective grain growth. In this method, bulks were epitaxially melt-grown from a large plate cut from commercial melt-textured bulks by utilizing the different peritectic temperatures of REBa2Cu3O y . Ag-added YBa2Cu3O y bulks with three crystallographic orientations ([100], [110], and [001]) were successfully prepared. The whole c-grown bulk showed a higher trapped field (∼0.39 T) with more circular distributions than the conventional top-seeded bulk. The proposed method is promising for the fabrication of high-performance melt-textured bulks with high scalability and flexibility.