Accession Number : ADD010695

Title :   Preparation of Hard Magnetic Alloys of a Transition Metal and Lanthanide.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Koon,N C

Report Date : 06 Sep 1983

Pagination or Media Count : 23

Abstract : A method of preparing alloy of a transition metal and lanthanide comprising the steps of alloying a transition metal, boron, at least one lower-weight lanthanide having none or few stable compounds with iron, optionally one or more higher-weight lanthanides, a glass former, and optionally the pseudo lanthanide, yttrium, forming an amorphous or nearly amorphous metastable microstructure in the alloy; and heating the amorphous alloy to form a polycrystalline, multiphase, fine-grain single domain structure.

Descriptors :   *Patent applications, *Transition metals, *Rare earth elements, *Magnetic alloys, Synthesis(Chemistry), Amorphous materials, Metastable state, Microstructure, Polycrystalline, Fine grained materials, Permanent magnets

Subject Categories : Properties of Metals and Alloys
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE