概论 1.大部分永磁体是由铁、镍、铝和钴的合金制造的,因为这种材料具有多方面的优异磁特性。在市场上以不同名称出售的这种合金通常称为“AlNiCo合金”。三岛1931年奠定了此种材料的基础,他发现了一组Al-Ni-Fe合金适于作永磁体。从那以后,特别是由于添加Co和Cu而改善了这些“Alni合金”的磁特性。含Co的合金在冷却过 Introduction 1. Most permanent magnets are made of iron, nickel, aluminum and cobalt alloys because of their versatility in many aspects. Such alloys marketed under different names are commonly referred to as “AlNiCo alloys.” Mishima laid the foundation for this material in 1931 and found a group of Al-Ni-Fe alloys suitable as permanent magnets. Since then, the magnetic properties of these “Alni alloys” have been improved, especially due to the addition of Co and Cu. Co-containing alloys are cooled