Magnetic disk substrate

Details Magnetic disk substrate Magnetic disk substrate

C - Chemistry, Metallurgy

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C

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C22C 14/00 (2006.01) G11B 5/62 (2006.01) G11B 5/73 (2006.01) H01F 1/053 (2006.01)

Patent

CA 2010290

ABSTRACT OF THE DISCLOSURE A magnetic disk substrate having a composition wherein (V/13) + (Fe/20) + (Cr/17) + (Ni/31) + (Co/23) are no greater than 0.010%, Rem + Si + B + W are no greater than 0.015% (where Rem denotes rare earth metals), O + 2N + 0.75C are no less than 0.03% and no greater than 0.5%, and the remainder consists sub- stantially of Ti, all % being weight %.

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