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Near Net Shape Processing of RE-Ba-Cu-O Bulk Superconductors
Murakami M.,Fujishiro M.,Miyazaki T.,Nariki S.,Sakai N.,Hirabayashi I. 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Several practical applications of melt-textured bulk superconductors require the complex-shaped products such as curved, ring-shaped, and drilled blocks rather than simple shaped pellets. However, melt-textured bulk superconductors are often damaged when they are cut, grinded, or drilled. With the aim of reducing such damages, we have investigated the preparation of the complex-shaped bulk superconductors by previously machining binder-added precursors and pre-sintered precursors. We could produce various complex-shaped bulk superconductors without cracking from these machined precursors