Accession Number : AD0163720

Title :   Permanent Magnets.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Strnat,Karl J. ; Hoffer,Gary L. ; Olson,John C. ; Ostertag,Werner

Report Date : 17 NOV 1970

Pagination or Media Count : 5

Abstract : The patent describes a method of making permanent magnets by pulverizing an alloy consisting of (a) selected rare earth metals and (b) cobalt (or mixtures of Co with Fe and Mn) characterized by high crystal anisotropy in specific atomic percent ratios, mixing the pulverized alloy with a binding agent, subjecting said powder to a magnetic field of sufficient magnitude so as to align the alloy particles with their direction of easiest magnetization parallel to the applied magnetic field, and thereafter permanently bonding together the aligned powdered alloy, and the article resulting therefrom.

Descriptors :   (*MAGNETS, *PATENTS), MANUFACTURING, FERROMAGNETIC MATERIALS, COBALT ALLOYS, INTERMETALLIC COMPOUNDS, RARE EARTH COMPOUNDS

Subject Categories : Electrical and Electronic Equipment
      Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE