Document Type

Patent

Publication Date

9-7-1993

Comments

A method for making an isotropic permanent magnet comprises atomizing a melt of a rare earth-transition metal alloy (e.g., an Nd--Fe--B alloy enriched in Nd and B) under conditions to produce protectively coated, rapidly solidified, generally spherical alloy particles wherein a majority of the particles are produced/size classified within a given size fraction (e.g., 5 to 40 microns diameter) exhibiting optimum as-atomized magnetic properties and subjecting the particles to concurrent elevated temperature and elevated isotropic pressure for a time effective to yield a densified, magnetically isotropic magnet compact having enhanced magnetic properties and mechanical properties.

Patent Number

US 5,242,508

ISURF Reference Number

1332

Assignee

Iowa State University Research Foundation, Inc.,

Application Number

US 07/869,897

Date Filed

4-15-1992

Language

en

File Format

application/pdf

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