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    • 48. 发明授权
    • Magnetic material
    • 磁性材料
    • US5397490A
    • 1995-03-14
    • US96275
    • 1993-07-26
    • Tsuyoshi MasumotoAkihisa InoueJunichi Nagahora
    • Tsuyoshi MasumotoAkihisa InoueJunichi Nagahora
    • C22C1/00C22C1/02C22C21/00C22C45/08H01F1/00H01F1/14H01F1/147H01F1/153
    • B82Y25/00H01F1/147H01F1/153
    • A magnetic material consisting essentially of A1 and 10 to 50 at. % of at least one capable of alloying with A1 to form quasicrystals (for example, 5 to 25 at. % of at least one member selected between Cu and Pd and 5 to 35 at. % of Mn) and up to 25 at. % of at least one element having a smaller atomic radius than those of the above elements (for example, B). The magnetic material is produced by adding, to a mixture consisting of A1 and at least one element capable of alloying with A1 to form quasicrystals and including at least one transition metal, at least one element having a smaller atomic radius than those of A1 and the above elements to dissolve the element having a smaller atomic radius in a solid solution form in a quasicrystalline phase. The thus obtained magnetic crystal is useful in various applications, such as magnetic recording heads, and a process for producing the same.
    • 基本上由A1和10至50at组成的磁性材料。 至少一种能够与Al合金化以形成准晶体的至少一种(例如,在Cu和Pd之间选择的至少一种成分和5至35原子%的Mn的5至25at。%)和至多25at。 至少一种元素的原子半径小于上述元素(例如B)的原子半径的百分比。 磁性材料是通过向由Al组成的混合物和能够与Al合金化的至少一种元素混合形成准晶体并包括至少一种过渡金属,至少一种具有比A1的原子半径小的元素和 上述元素以固溶体形式在准晶相中溶解具有较小原子半径的元素。 由此获得的磁晶体可用于各种应用中,例如磁记录头,及其制造方法。