Synthesis of ordered L10-type FeNi nanoparticles
Abstract
Particles of iron and nickel are added to a flowing plasma stream which does not chemically alter the iron or nickel. The iron and nickel are heated and vaporized in the stream, and then a cryogenic fluid is added to the stream to rapidly cause the formation of nanometer size particles of iron and nickel. The particles are separated from the stream. The particles are preferably formed as single crystals in which the iron and nickel atoms are organized in a tetragonal L1.sub.0 crystal structure which displays magnetic anisotropy. A minor portion of an additive, such as titanium, vanadium, aluminum, boron, carbon, phosphorous, or sulfur, may be added to the plasma stream with the iron and nickel to enhance formation of the desired crystal structure.
- Inventors:
- Issue Date:
- Research Org.:
- GM Global Technology Operations LLC, Detroit, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1215625
- Patent Number(s):
- 9142350
- Application Number:
- 13/798,292
- Assignee:
- GM Global Technology Operations LLC (Detroit, MI)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
- DOE Contract Number:
- AR0000186
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Mar 13
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Pinkerton, Frederick E. Synthesis of ordered L10-type FeNi nanoparticles. United States: N. p., 2015.
Web.
Pinkerton, Frederick E. Synthesis of ordered L10-type FeNi nanoparticles. United States.
Pinkerton, Frederick E. Tue .
"Synthesis of ordered L10-type FeNi nanoparticles". United States. https://www.osti.gov/servlets/purl/1215625.
@article{osti_1215625,
title = {Synthesis of ordered L10-type FeNi nanoparticles},
author = {Pinkerton, Frederick E.},
abstractNote = {Particles of iron and nickel are added to a flowing plasma stream which does not chemically alter the iron or nickel. The iron and nickel are heated and vaporized in the stream, and then a cryogenic fluid is added to the stream to rapidly cause the formation of nanometer size particles of iron and nickel. The particles are separated from the stream. The particles are preferably formed as single crystals in which the iron and nickel atoms are organized in a tetragonal L1.sub.0 crystal structure which displays magnetic anisotropy. A minor portion of an additive, such as titanium, vanadium, aluminum, boron, carbon, phosphorous, or sulfur, may be added to the plasma stream with the iron and nickel to enhance formation of the desired crystal structure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 22 00:00:00 EDT 2015},
month = {Tue Sep 22 00:00:00 EDT 2015}
}
Works referenced in this record:
Techniques for producing fine metal powder
patent, September 1992
- Roberts, Peter R.; Blout, James E.
- US Patent Document 5,147,448
Magnetically operated absorbent and method for the production thereof
patent, February 2011
- Kutushov, Mikhail Vladimirovich
- US Patent Document 7,888,284