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    • 70. 发明授权
    • Magnetic recording medium and process for producing the same
    • 磁记录介质及其制造方法
    • US5538802A
    • 1996-07-23
    • US112142
    • 1993-08-26
    • Noriyuki KitaoriOsamu YoshidaHirohide Mizunoya
    • Noriyuki KitaoriOsamu YoshidaHirohide Mizunoya
    • G11B5/64G11B5/66
    • G11B5/653Y10S428/90
    • A magnetic recording medium which is uncostly, can dispense with environmental pollution control measures unlike the case of Co or Cr, is highly durable, permits high density recording and comprises a magnetic film selected from the group consisting of:(1) a Fe--N--O magnetic film comprising 70 to 90 atomic % of Fe, 5 to 15 atomic % of N and 5 to 15 atomic % of O,(2) a Fe--C--O magnetic film comprising 60 to 85 atomic % of Fe, 5 to 35 atomic % of C and 5 to 15 atomic % of O,(3) a Fe--P--O magnetic film comprising 70 to 90 atomic % of Fe, 5 to 25 atomic % of P and 5 to 10 atomic % of O,(4) a Fe--Si--O magnetic film comprising 60 to 90 atomic % of Fe, 5 to 30 atomic % of Si and 5 to 10 atomic % of O,(5) a Fe--B--O magnetic film comprising 65 to 90 atomic % of Fe, 5 to 30 atomic % of B and 5 to 10 atomic % of O, and(6) a Fe--Ni--N--O magnetic film comprising 40 to 75 atomic % of Fe, 10 to 30 atomic % of Ni, 10 to 30 atomic % of N and 5 to 10 atomic % of O.
    • 与Co或Cr不同的情况下,不附着环境污染控制措施的磁记录介质是非常耐用的,允许高密度记录,并且包括选自以下的磁性膜:(1)Fe-NO 包含70〜90原子%的Fe,5〜15原子%的N和5〜15原子%的O的磁性膜,(2)Fe-CO磁性膜,其含有60〜85原子%的Fe,5〜35原子% 的C和5〜15原子%的O,(3)Fe-PO磁性膜,其包含70〜90原子%的Fe,5〜25原子%的P和5〜10原子%的O,(4)Fe -Si-O磁性膜,其包含60至90原子%的Fe,5至30原子%的Si和5至10原子%的O,(5)Fe-BO磁性膜,其包含65至90原子%的Fe,5 至30原子%的B和5至10原子%的O,和(6)Fe-Ni-NO磁性膜,其包含40至75原子%的Fe,10至30原子%的Ni,10至30原子%的Fe N和5至10原子%的O.