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

Abstract

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:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1462962
Patent Number(s):
10,017,843
Application Number:
14/225,306
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Mar 25
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Mariani, Robert D., and Porter, Douglas L. Compositions of particles comprising rare-earth oxides in a metal alloy matrix and related methods. United States: N. p., 2018. Web.
Mariani, Robert D., & Porter, Douglas L. Compositions of particles comprising rare-earth oxides in a metal alloy matrix and related methods. United States.
Mariani, Robert D., and Porter, Douglas L. Tue . "Compositions of particles comprising rare-earth oxides in a metal alloy matrix and related methods". United States. https://www.osti.gov/servlets/purl/1462962.
@article{osti_1462962,
title = {Compositions of particles comprising rare-earth oxides in a metal alloy matrix and related methods},
author = {Mariani, Robert D. and Porter, Douglas L.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {7}
}

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Works referenced in this record:

Stability of nanoscale secondary phases in an oxide dispersion strengthened Fe–12Cr alloy
journal, June 2011


Atomic structure of nanoclusters in oxide-dispersion-strengthened steels
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Core/shell structures of oxygen-rich nanofeatures in oxide-dispersion strengthened Fe–Cr alloys
journal, November 2008

  • Marquis, Emmanuelle A.
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