【摘要】 本文叙述了用脉冲场对三种国产 A-15超导材料高场临界电流的测试。指出样品表面的铜层对低场测量结果有显著的影响。在一定的铜厚下对某些样品甚至可在低至6T 的脉冲磁场下获得和稳恒场一致的数据。更多还原

【Abstract】 This paper presents the measurements of critical current Jc by pulsed method for 3 kinds of A-I5 superconducting materials fabricated in China. It is pointed out that the copper coat of sample influences the measure- ment at low field seriously.It is possible to obtain the data of pulsed method which is well agreed with the data of steady field method at as low field as 6 T if the thickness of sample’s copper is larger than certain value.更多还原