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    • 63. 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。
    • 66. 发明授权
    • Superplastic aluminum-based alloy material and production process thereof
    • 超塑性铝基合金材料及其制备方法
    • US5332456A
    • 1994-07-26
    • US951197
    • 1992-09-25
    • Tsuyoshi MasumotoAkihisa InoueKenji HigashiKatsumasa OhteraMakoto Kawanishi
    • Tsuyoshi MasumotoAkihisa InoueKenji HigashiKatsumasa OhteraMakoto Kawanishi
    • C22C21/00C22C45/08C22F1/04C22F1/00
    • C22C21/00C22C45/08C22F1/04Y10S420/902
    • A superplastic aluminum-based alloy material consisting of a matrix formed of aluminum or a supersaturated aluminum solid solution, whose average crystal grain size is 0.005 to 1 .mu.m, and particles made of a stable or metastable phase of various intermetallic compounds formed of the main alloying element (i.e., the matrix element) and the other alloying elements and/or of various intermetallic compounds formed of the other alloying elements and distributed evenly in the matrix, the particles having a mean particle size of 0.001 to 0.1 .mu.m. The superplastic aluminum-based alloy material is produced from a rapidly solidified material consisting of an amorphous phase, a microcrystalline phase or a mixed phase thereof by optionally heat treating the material at a prescribed temperature for a prescribed period of time and then subjecting it to a single or combined thermomechanical treatment. The superplastic aluminum-based alloy material of the present invention is suited for superplastic working.
    • 由铝或由过饱和铝固溶体形成的平均晶粒尺寸为0.005-1μm的基质和由主要形成的各种金属间化合物的稳定或亚稳相制成的颗粒组成的超塑性铝基合金材料 合金元素(即基质元素)和其它合金元素和/或由其它合金元素形成的各种金属间化合物,并均匀地分布在基质中,颗粒的平均粒度为0.001至0.1μm。 超塑性铝基合金材料由非晶相,微晶相或其混合相组成的快速凝固材料制成,可任选地在预定温度下将材料热处理规定的时间,然后将其 单一或组合的热机械治疗。 本发明的超塑性铝基合金材料适用于超塑性加工。