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用1000kV高压电子显微镜观察了单芯和多芯Nb/Nb3Sn复合材料的显微组织,看到了由Nb3Sn/Nb3Sn晶粒重叠而成的叠栅图和Nb基体/Nb3Sn晶粒重叠而成的叠栅图。The microstructure of the single core and multifilamentary Nb/Nb3Sn composite materials has been observed using a 1000 kV HVEM. Two types of moire patterns, formed by overlapping Nb3Sn/Nb3Sn and Nb/Nb3Sn crystals respectively, have been found.







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