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Title: Compositions of particles comprising rare-earth oxides in a metal alloy matrix and related methods

A composition includes a metal alloy matrix comprising iron and a plurality of nanoparticles dispersed within the metal alloy matrix. Each nanoparticle of the plurality comprises an oxide of a rare-earth metal and at least one metal selected from the group consisting of tantalum, niobium, vanadium, and titanium. Some compositions include a metal alloy matrix comprising iron and a plurality of nanoparticles comprising at least two different oxides of rare-earth metals dispersed within the metal alloy matrix. Some methods include mixing an oxide of a rare-earth metal with a first metal and a second metal. Other methods include mixing a plurality of particles comprising at least one oxide of a rare-earth metal with a molten metal comprising iron. Each particle of the plurality may exhibit a density between about 6.9 g/cm.sup.3 and about 9.0 g/cm.sup.3.
Inventors:
;
Issue Date:
OSTI Identifier:
1462962
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID) INL
Patent Number(s):
10,017,843
Application Number:
14/225,306
Contract Number:
AC07-05ID14517
Resource Relation:
Patent File Date: 2014 Mar 25
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

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