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Title: Process for preparing scalable quantities of high purity manganese bismuth magnetic materials for fabrication of permanent magnets

Patent ·
OSTI ID:1295716

A scalable process is detailed for forming bulk quantities of high-purity .alpha.-MnBi phase materials suitable for fabrication of MnBi based permanent magnets.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
Assignee:
BATTELLE MEMORIAL INSTITUTE (Richland, WA)
Patent Number(s):
9,418,779
Application Number:
14/059,773
OSTI ID:
1295716
Resource Relation:
Patent File Date: 2013 Oct 22
Country of Publication:
United States
Language:
English

References (13)

High energy ball milling method for making rare earth-transition metal-boron permanent magnets patent October 1988
Directional solidification and densification of permanent magnets having single domain size MnBi particles patent November 1988
Magnetic powder, method for producing the same and use of the same patent July 1997
Process for producing alloy, alloy and alloy containing sheets made therefrom patent November 2000
Temperature dependences of structure and coercivity for melt-spun MnBi compound journal March 2013
Anisotropic nanocrystalline MnBi with high coercivity at high temperature journal August 2011
Magnetic properties of the MnBi intermetallic compound journal September 2001
Magnetic properties of MnBi prepared by rapid solidification journal December 1992
Preparation of Highly Pure MnBi Intermetallic Compounds by Arc-Melting journal January 1999
The formation of single-phase equiatomic MnBi by rapid solidification journal November 1990
Neutron Diffraction Study of the Structures and Magnetic Properties of Manganese Bismuthide journal November 1956
Formation of MnBi ferromagnetic phases through crystallization of the amorphous phase journal April 1991
Thermodynamic Assessment of the Bi-Mn System journal January 2011