Based on thermoanalytic investigations a melt crystallization process was developed with reduced process temperatures and process times to produce YBCO/Ag monoliths (d=26 mm) achieving the homogenous distribution of small sized Ag inclusions. The mechanical properties are improved, but the superconducting properties at 77 K, B/sub 0/ (480 mT) and F/sub N/ (40 N) are slightly reduced compared with YBCO monoliths without an addition of Ag (750 mT and 65 N). The maximum trapped flux was increased to the value B/sub 0/ 9.4 T at 26.5 K, instead of 8.4 T in the Ag-free bulk monolith.
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机译:基于热分析研究,开发了熔融结晶工艺,降低了工艺温度和工艺时间,以生产YBCO / Ag整料(d = 26 mm),实现了小尺寸Ag夹杂物的均匀分布。力学性能有所改善,但与不添加Ag的YBCO整体材料(750 mT和65)相比,在77 K,B / sub 0 /(480 mT)和F / sub N /(40 N)时的超导性能略有降低。 N)。在26.5 K时,最大捕获通量增加到B / sub 0 / 9.4 T值,而不是在无Ag块状整体材料中达到8.4T。
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