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Title: Method for producing La/Ce/MM/Y base alloys, resulting alloys, and battery electrodes

Patent ·
OSTI ID:1576436
;

A carbothermic reduction method is provided for reducing a La-, Ce-, MM-, and/or Y-containing oxide in the presence of carbon and a source of a reactant element comprising Si, Ge, Sn, Pb, As, Sb, Bi, and/or P to form an intermediate alloy material including a majority of La, Ce, MM, and/or Y and a minor amount of the reactant element. The intermediate material is useful as a master alloy for in making negative electrode materials for a metal hydride battery, as hydrogen storage alloys, as master alloy additive for addition to a melt of commercial Mg and Al alloys, steels, cast irons, and superalloys; or in reducing Sm2O3 to Sm metal for use in Sm—Co permanent magnets.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-07CH11358
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA)
Patent Number(s):
10,435,770
Application Number:
15/330,895
OSTI ID:
1576436
Resource Relation:
Patent File Date: 2016 Nov 10
Country of Publication:
United States
Language:
English

References (25)

Magnetically anisotropic hotworked magnet and method of producing same patent June 1991
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R-T-B Based Rare Earth Permanent Magnet and Method for Production Thereof patent-application October 2006
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Rare earth metal silicide alloys patent April 1977
R-T-B-C Based Rare Earth Magnetic Powder and Bonded Magnet patent-application September 2004
Method of Making Active Magnetic Refrigerant Materials Based on Gd-Si-Ge Alloys patent-application December 2003
Active magnetic refrigerants based on Gd-Si-Ge material and refrigeration apparatus and process patent April 1998
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Method for Improving the Properties of Alloy Powders for NiMH Batteries patent-application April 2003
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Method of producing neodymium-iron-boron permanent magnet patent June 1989
Environmentally stable reactive alloy powders and method of making same patent September 1998
Rare earth metal-series alloys for storage of hydrogen patent February 1992
Method for producing La/Ce/MM/Y base alloys, resulting alloys and battery electrodes patent December 2016
Permanent magnet patent April 1993
Rare Earth Metal-Based Permanent Magent, and Process for Producing the Same patent-application May 2002
Method for producing metal oxide powders patent November 1998
Method of making active magnetic refrigerant, colossal magnetostriction and giant magnetoresistive materials based on Gd-Si-Ge alloys patent July 2003

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Method for producing La/Ce/MM/Y base alloys, resulting alloys and battery electrodes
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Related Subjects

36 MATERIALS SCIENCE
25 ENERGY STORAGE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY