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

We developed a simple single-direction melt growth for the fabrication of high-performance REBa2Cu3Oy(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 REBa2Cu3Oy. Ag-added YBa(2)Cu(3)O(y)bulks with three crystallographic orientations ([100], [110], and [001]) were successfully prepared. The wholec-grown bulk showed a higher trapped field (similar to 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.