Magnetic recording medium and method for its production

Details Magnetic recording medium and method for its production Magnetic recording medium and method for its production

1993-01-26

1996-02-27

Kiliman, Leszek

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 654, 428 656, 428 657, 428610, 428332, 428336, 428704, 428666, 428667, 428678, 428694T, 428694TS, 428694TP, 428694SL, 428694ST, 428900, 428928, B32B 302, B32B 516, B32B 1500, G11B 566

Patent

active

054947227

ABSTRACT:
A thin-film rigid disk magnetic medium is prepared having a non-magnetic substrate and a magnetic alloy layer formed on the substrate with a non-magnetic underlayer containing chromium as the main component interposed therebetween, where the magnetic alloy layer contains cobalt as the main component and not more than 8 atomic % of boron, not more than 40 atomic % of nickel, not more than 26 atomic % of chromium and not more than 10 atomic % of tantalum. Preferably, the magnetic alloy layer is formed by sputtering while a voltage relatively lower than the plasma potential is applied to the non-magnetic substrate.

REFERENCES:
patent: 5006388 (1991-04-01), Kuzuo et al.
patent: 5013616 (1991-05-01), Morichika et al.
patent: 5024903 (1991-06-01), Mizukami et al.
35th Spring Meeting of the Japan Society of Applied Physics and Related Societies in 1988, Reference Materials 29-c-10 (w/summary).
Meeting of Technical Group on Component Parts and Materials of the Institute of Electronics, Information and Communication Engineers, Reference Material CPM88-92 (w/summary).
35th Spring Meeting of the Japan Society of Applied Physics and Related Societies in 1988, Reference Materials 29-c-9 (w/summary).

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