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日本山形大学的一个研究小组在聚氨酯树脂中添加一些铁粒子,铁粒子直径为3μm,然后将这种掺杂了铁粒子的聚氨酯材料置于磁感应强度为300毫特斯拉的磁场中,0.1s的时间过后,聚氨酯材料中的铁粒子便呈直线排列状
A research team at Yamagata University in Japan added some iron particles to the urethane resin with an iron particle diameter of 3 μm and placed the polyurethane material doped with iron particles in a magnetic field of 300 mTs at a magnetic induction of 0.1 s After the time, the polyurethane particles in the material will be arranged in a straight line