自去年钇系超导材料发现以来,引起一场世界范内超导体研究竞争,这是因为它不仅在工业技术的应用上十分广泛,而且在军事技术的应用上也是极为广阔的。利用超导体的特性,可以制成一种磁轨炮。这种磁轨炮中储存着强大的电流,在一瞬释放,可以产生强大的电磁脉冲电流,能把飞行中的洲际导弹击落下来。如果与定 Since the discovery of yttrium-based superconducting materials last year, it has led to a worldwide competition in superconducting studies because of its wide application not only in industrial technology but also in military applications. The use of superconductor characteristics, can be made of a rail gun. The railgun, which stores powerful currents, is released at a moment’s notice to produce powerful electromagnetic pulse currents that can shoot down the intercontinental missiles in flight. If and with