公开(公告)号：CA1122399A

公开(公告)日：1982-04-27

申请号：CA336241

申请日：1979-09-24

Applicant: IBM

Inventor： MICHAELSEN JOHN D ,  NEPELA DANIEL A ,  PHIPPS PETER B P

IPC: G11B5/66 ,  C22C19/07 ,  C22C38/00 ,  G11B5/64 ,  G11B5/84 ,  H01F10/14 ,  H01F10/16 ,  H01F41/18 ,  H01F41/20

Abstract: CORROSION RESISTANT MAGNETIC RECORDING MEDIA A thin film magnetic recording medium for deposition on a record carrier includes a ferromagnetic alloy containing iron, cobalt and chromium. The ferromagnetic alloy consists of from 0-55% cobalt, from 8-22% of chromium with the remainder iron. The preferred range of chromium is from 10-18%. The magnetic recording layer is vacuum deposited over an extended portion of a record carrier for storing information which is represented by the spatial distribution of magnetic transitions in the magnetic layer. The iron-cobalt-chromium or iron-chromium composition according to this invention, gives the best magnetic properties consistent with excellent corrosion resistance. SA976033