Abstract:Abstract. Since melt-textured rare earth (RE)-system superconducting bulk can trap high magnetic field, it acts as a quasi-permanent magnet stronger than conventional permanent magnets. Large-sized single-domain DyBa 2 Cu 3 O x (Dy-123) system bulks about 48 mm in diameter and 15 mm in thickness were prepared with a seeding and temperature gradient method in air. Dy-123 and Dy 2 BaCuO 5 (Dy-211) powders were mixed in molar ratios of 1:0.3. The pellets were partially melted at 1,070 o C. When the top temperatur… Show more
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