• DocumentCode
    967037
  • Title

    Magnetic recording properties of SmCo5

  • Author

    Fayling, R.E. ; Bendson, S.A.

  • Author_Institution
    IEEE TMAG
  • Volume
    14
  • Issue
    5
  • fYear
    1978
  • fDate
    9/1/1978 12:00:00 AM
  • Firstpage
    752
  • Lastpage
    754
  • Abstract
    Extremely high coercivity magnetic recording materials are being evaluated for use in secure magnetic documents. Commercially available SmCo5particles were milled in a standard binder solution, and coated onto polyester film, to make experimental magnetic recording tapes. Selected magnetic properties and low-bit-density recording characteristics were determined for two SmCo5tapes with intrinsic coercivities of 8.9 and 11.3 kOe, and compared with two barium ferrite tapes with coercivities of 4.1 and 5.2 kOe. Both SmCo5tapes had too high coercivity for an iron-cobalt core head to record. The SmCo5tapes had poorer signal output and alteration resistance than the lower coercivity barium ferrite tapes.
  • Keywords
    Magnetic tape recording materials; Rare-earth materials/devices; Barium; Coercive force; Ferrites; Magnetic domains; Magnetic flux; Magnetic heads; Magnetic materials; Magnetic properties; Magnetic recording; Saturation magnetization;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1978.1059899
  • Filename
    1059899
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=967037