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1.发明授权Fc-Pt-Nb permanent magnet with an ultra-high coercive force and a large maximum energy product, and method for producing the same 失效具有超高矫顽力和大的最大能量积的Fc-Pt-Nb永磁体及其制造方法
公开(公告)号：US4863530A
公开(公告)日：1989-09-05
申请号：US278346
申请日：1988-12-01
摘要： The disclosed permanent magnet has a coercive force of larger than 500 Oe, a residual magnetic flux density of larger than 5 kG, and a maximum energy product of larger than 2 MGOe, and it consisting essentially of 48.about.66.9 Atm % of iron, 33.about.47 Atm % of platinum, and 0.1.about.10 Atm % of niobium. It includes a crystal structure of an incomplete single .gamma.1 phase of a face-centered tetragonal system due to either the composition thereof or heat treatment applied thereto. The permanent magnet are made by heating an alloy of the above main composition at 900.degree..about.1,400.degree. for one minute to ten hours and quenching the alloy at a high speed of faster than 30.degree. C./minute but slower than 2,000.degree. C./sec.
摘要翻译： 所公开的永磁体具有大于500Oe的矫顽力，大于5kG的剩余磁通密度和大于2MGOe的最大能量乘积，并且其基本上由48差异66.9％的铁，33％ 差异47铂的百分比，和0.1的差异10 Atm％的铌。 由于其组成或施加于其上的热处理，它包括面心四方系的不完全单一γ1相的晶体结构。 永久磁铁是通过将上述主要组合物的合金在900℃-140℃下加热1分钟至10小时而制成的，并以高于30℃/分钟但低于2000℃的高速淬火该合金。 /秒。
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2.发明授权Fe-Pt-Nb permanent magnet with an ultra-high coercive force and a large maximum energy product 失效具有超高矫顽力和大的最大能量产品的Fe-Pt-Nb永磁体
公开(公告)号：US4814027A
公开(公告)日：1989-03-21
申请号：US171743
申请日：1988-03-22
摘要： The disclosed permanent magnet has a coercive force of larger than 500 Oe, a residual magnetic flux density of larger than 5 kG, and a maximum energy product of larger than 2 MGOe, and it consisting essentially of 48.about.66.9 Atm % of iron, 33.about.47 Atm % of platinum, and 0.1.about.10 Atm % of niobium. It includes a crystal structure of an incomplete single .gamma..sub.1 phase of a face-centered tetragonal system due to either the composition thereof or heat treatment applied thereto. The permanent magnet is made by heating an alloy of the above main composition at 900.degree..about.400.degree. for one minute to ten hours and quenching the alloy at a high speed of faster than 30.degree. C./minute but slower than 2,000.degree. C./sec.
摘要翻译： 所公开的永磁体具有大于500Oe的矫顽力，大于5kG的剩余磁通密度和大于2MGOe的最大能量乘积，并且其基本上由48差异66.9％的铁，33％ 差异47铂的百分比，和0.1的差异10 Atm％的铌。 由于其组成或施加于其上的热处理，它包括面心四方系的不完全单一γ1相的晶体结构。 通过将上述主组合物的合金在900℃-400℃下加热1分钟至10小时，并以高于30℃/分钟但低于2000℃的高速淬火来制造永久磁铁。 /秒。
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