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公开(公告)号：US4382110A
公开(公告)日：1983-05-03
申请号：US330019
申请日：1981-12-11
CPC分类号： G11B5/656 , C23C14/0021 , G11B5/851 , H01F10/18 , H01F41/14 , Y10S428/90 , Y10T428/265 , Y10T428/31678
摘要： A magnetic recording medium comprising a non-magnetic substrate such as on polyethylene terephthalate film, and deposited on the surface of the substrate by a ionized cluster beam deposition method, at least one ferromagnetic material selected from the group consisting of cobalt, cobalt-containing alloys, mixtures of cobalt with other elements, and chromium dioxide; and a process for production thereof. The magnetic recording medium is characterized by having superior magnetic properties, especially superior coercive force, residual magnetic flux density and squareness ratio, and high mechanical strength.
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公开(公告)号：US4354909A
公开(公告)日：1982-10-19
申请号：US124235
申请日：1980-02-25
CPC分类号： G11B5/656 , C23C14/0021 , G11B5/851 , H01F10/18 , H01F41/14 , Y10S428/90 , Y10T428/265 , Y10T428/31678
摘要： A magnetic recording medium comprising a non-magnetic substrate such as polyethylene terephthalate film, and deposited on the surface of the substrate by an ionized cluster beam deposition method, at least one ferro-magnetic material selected from the group consisting of cobalt, cobalt-containing alloys, mixtures of cobalt with other elements, and chromium dioxide; and a process for production thereof. The magnetic recording medium is characterized by having superior magnetic properties, especially superior coercive force, residual magnetic flux density and squareness ratio, and high mechanical strength.
摘要翻译： 一种磁记录介质，其包括诸如聚对苯二甲酸乙二醇酯膜的非磁性基底，并通过离子束聚束法沉积方法沉积在该基底的表面上，至少一种铁磁性材料选自钴，钴 合金，钴与其他元素的混合物和二氧化铬; 及其制造方法。 磁记录介质具有优异的磁性能，特别是优良的矫顽力，剩余磁通密度和矩形比，机械强度高。
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公开(公告)号：US4395465A
公开(公告)日：1983-07-26
申请号：US290966
申请日：1981-08-07
CPC分类号： G11B5/851 , H01F41/14 , Y10S428/928 , Y10S428/934 , Y10T428/12569
摘要： A magnetic recording medium comprising(a) a flexible substrate of a polymeric material,(b) a first magnetic layer of a ferromagnetic metal deposited on the substrate by an ionized cluster beam deposition method, and(c) a second magnetic layer of a ferromagnetic metal deposited on the first magnetic layer by a high-vacuum ion plating deposition method, and a process for producing a magnetic recording medium which comprisesimparting a kinetic energy in the range of 100 eV to 10 KeV to an ionized cluster composed of ferromagnetic metal atoms in a high vacuum corresponding to a pressure of 8.times.10.sup.-4 to 1.times.10.sup.-10 torr and impinging the resulting ionized cluster beam against a flexible substrate of a polymeric material to deposit a first magnetic layer of the ferromagnetic metal on the substrate, andimparting a kinetic energy in the range of 1 eV to 10 KeV to atom ions of a ferromagnetic metal by an ion plating method in a high vacuum corresponding to a pressure of 8.times.10.sup.-4 to 1.times.10.sup.-10 torr, and impinging the resulting atom ion beam against the first magnetic layer to deposit a second magnetic layer of the ferromagnetic metal on the first magnetic layer.
摘要翻译： 一种磁记录介质，包括（a）聚合物材料的柔性基底，（b）通过离子化聚束束沉积法沉积在基底上的强磁性金属的第一磁性层，和（c）铁磁性金属的第二磁性层 通过高真空离子镀沉积方法沉积在第一磁性层上的金属，以及制造磁记录介质的方法，其包括将动能在100eV至10KeV范围内赋予由铁磁性金属原子构成的电离簇 在对应于8×10 -4至1×10 -10乇压力的高真空中，并将所得到的离子束束撞击聚合材料的柔性基底，以将铁磁金属的第一磁性层沉积在基底上，并赋予动力学 在相当于8×10 -4〜1×10 -10乇的压力的高真空中通过离子镀法在1eV至10KeV的范围内的能量在铁磁性金属的原子离子上， d将所产生的原子离子束撞击第一磁性层，以将铁磁性金属的第二磁性层沉积在第一磁性层上。
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