Stability of gas atomized reactive powders through multiple step in-situ passivation

Anderson, Iver E.; Steinmetz, Andrew D.; Byrd, David J.

Title: Stability of gas atomized reactive powders through multiple step in-situ passivation

Abstract

A method for gas atomization of oxygen-reactive reactive metals and alloys wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a protective reaction film on the atomized particles. The present invention is especially useful for making highly pyrophoric reactive metal or alloy atomized powders, such as atomized magnesium and magnesium alloy powders. The gaseous reactive species (agents) are introduced into the atomization spray chamber at locations downstream of a gas atomizing nozzle as determined by the desired powder or particle temperature for the reactions and the desired thickness of the reaction film.

Inventors:: Anderson, Iver E.; Steinmetz, Andrew D.; Byrd, David J.

Issue Date:: 2020-09-08

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1735223

Patent Number(s):: 10766831

Application Number:: 15/731,053

Assignee:: Iowa State University Research Foundation, Inc. (Ames, IA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

C - CHEMISTRY C06 - EXPLOSIVES C06B - EXPLOSIVES OR THERMIC COMPOSITIONS

Show more

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F1/0088 - {Chemical treatment, e.g. passivation}
B22F2009/0844 - {in controlled atmosphere}
B22F9/082 - {atomising using a fluid

C - CHEMISTRY C06 - EXPLOSIVES C06B - EXPLOSIVES OR THERMIC COMPOSITIONS
C06B45/30 - the component base containing an inorganic explosive or an inorganic thermic component

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F2201/10 - Inert gases
B22F9/16 - using chemical processes
B22F2201/00 - Treatment under specific atmosphere
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F2201/03 - Oxygen

Show less

DOE Contract Number:: AC02-07CH11358

Resource Type:: Patent

Resource Relation:: Patent File Date: 04/11/2017

Country of Publication:: United States

Language:: English

Citation Formats


                    Anderson, Iver E., Steinmetz, Andrew D., and Byrd, David J. Stability of gas atomized reactive powders through multiple step in-situ passivation.  United States: N. p., 2020. 
        Web.

Copy to clipboard


                    Anderson, Iver E., Steinmetz, Andrew D., & Byrd, David J. Stability of gas atomized reactive powders through multiple step in-situ passivation.  United States.

Copy to clipboard


                    Anderson, Iver E., Steinmetz, Andrew D., and Byrd, David J. Tue .  
        "Stability of gas atomized reactive powders through multiple step in-situ passivation".  United States.  https://www.osti.gov/servlets/purl/1735223.

Copy to clipboard


                    
@article{osti_1735223,

  title        = {Stability of gas atomized reactive powders through multiple step in-situ passivation},

  author       = {Anderson, Iver E. and Steinmetz, Andrew D. and Byrd, David J.},

  abstractNote = {A method for gas atomization of oxygen-reactive reactive metals and alloys wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a protective reaction film on the atomized particles. The present invention is especially useful for making highly pyrophoric reactive metal or alloy atomized powders, such as atomized magnesium and magnesium alloy powders. The gaseous reactive species (agents) are introduced into the atomization spray chamber at locations downstream of a gas atomizing nozzle as determined by the desired powder or particle temperature for the reactions and the desired thickness of the reaction film.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {9}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Product of a halogen containing Ti-Al system intermetallic compound having a superior oxidation and wear resistance
patent, September 1995

Kumagai, Masaki; Shibue, Kazuhisa; Kim, Mok-Soon
US Patent Document 5,451,366
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5451366

Characterisation of protective surface films formed on molten magnesium protected by air/SF₆ atmospheres
journal, February 2002

Cashion, S. P.; Ricketts, N. J.; Hayes, P. C.
Journal of Light Metals, Vol. 2, Issue 1, p. 37-42
https://doi.org/10.1016/S1471-5317(02)00011-1

Surface-Modified Magnesium Powders For Use In Pyrotechnic Compositions
patent-application, January 2009

Smith, Paul
US Patent Application 12/167845; 20090025841
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090025841%22.PGNR.&OS=DN/20090025841&RS=DN/20090025841

Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions
patent, November 1994

Anderson, Iver E.; Lograsso, Barbara K.; Ellis, Timothy W.
US Patent Document 5,368,657
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5368657

Atomizing apparatus for making polymer and metal powders and whiskers
patent, March 2003

Otaigbe, Joshua U.; McAvoy, Jon M.; Anderson, Iver E.
US Patent Document 6,533,563
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6533563

Electric arc spraying of reactive metals
patent, February 1991

Kaiser, John J.; Hayduk, Jr., Edward A.; Zurecki, Zbigniew
US Patent Document 4,992,337
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4992337

Protection behavior of fluorine-containing cover gases on molten magnesium alloys
journal, July 2010

Xiong, Shou-mei; Wang, Xian-fei
Transactions of Nonferrous Metals Society of China, Vol. 20, Issue 7, p. 1228-1234
https://doi.org/10.1016/S1003-6326(09)60283-1

Thermal Decomposition of NF ₃ with Various Oxides
journal, January 1996

Vileno, Elizabeth; LeClair, Michael K.; Suib, Steven L.
Chemistry of Materials, Vol. 8, Issue 6
https://doi.org/10.1021/cm9504955

Production Of Alloys Based On Titanium Aluminides
patent-application, May 2010

Paul, Jonathan; Appel, Fritz; Oehring, Michael
US Patent Application 12/684176; 20100119402
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100119402%22.PGNR.&OS=DN/20100119402&RS=DN/20100119402

Environmentally stable reactive alloy powders and method of making same
patent, September 1998

Anderson, Iver E.; Lograsso, Barbara K.; Terpstra, Robert L.
US Patent Document 5,811,187
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5811187

Atomizing nozzle and process
patent, June 1992

Anderson, Iver E.; Figliola, Richard S.; Molnar, Holly M.
US Patent Document 5,125,574
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5125574

Method of making environmentally stable reactive alloy powders
patent, December 1994

Anderson, Iver E.; Lograsso, Barbara K.; Terpstra, Robert L.
US Patent Document 5,372,629
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5372629

Highly tuned gas atomization for controlled preparation of coarse powder. Hochleistungsgasverdüsung für die gezielte Präparation grober Pulver
journal, July 2010

Anderson, I. E.; Byrd, D.; Meyer, J.
Materialwissenschaft und Werkstofftechnik, Vol. 41, Issue 7, p. 504-512
https://doi.org/10.1002/mawe.201000636

Analysis of the spray deposition process
journal, February 1989

Mathur, P.; Apelian, D.; Lawley, A.
Acta Metallurgica, Vol. 37, Issue 2, p. 429-443
https://doi.org/10.1016/0001-6160(89)90227-7

Apparatus for making environmentally stable reactive alloy powders
patent, December 1996

Anderson, Iver E.; Lograsso, Barbara K.; Terpstra, Robert L.
US Patent Document 5,589,199
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5589199

Behaviour of CaO coating of gas atomized Mg powders using mechanical milling process
journal, June 2011

Kim, Sun-Mi; Kim, Yong Hwan; Kim, Young Do
Journal of Alloys and Compounds, Vol. 509, p. S503-S506
https://doi.org/10.1016/j.jallcom.2011.02.078

The Oxidation and Evaporation of Magnesium at Temperatures from 400° to 500° C
journal, January 1945

Gulbransen, Earl A.
Transactions of The Electrochemical Society, Vol. 87, Issue 1, p. 589-599
https://doi.org/10.1149/1.3071667

Characterisation of the surface films formed on molten magnesium in different protective atmospheres
journal, July 2002

Pettersen, Gunnar; Øvrelid, E.; Tranell, G.
Materials Science and Engineering: A, Vol. 332, Issue 1-2, p. 285-294
https://doi.org/10.1016/S0921-5093(01)01750-6

Similar Records in DOE Patents and OSTI.GOV collections:

Stability of gas atomized reactive powders through multiple step in-situ passivation

Patent Anderson, Iver E.; Steinmetz, Andrew D.; Byrd, David J.

A method for gas atomization of oxygen-reactive reactive metals and alloys wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a protective reaction film on the atomized particles. The present invention is especially useful for making highly pyrophoric reactive metal or alloy atomized powders, such as atomized magnesium and magnesium alloy powders. The gaseous reactive species (agents) are introduced into the atomization spray chamber at locations downstream of a gas atomizing nozzle as determined by the desired powder or particle temperature for themore »« less
Full Text Available
Stability of gas atomized reactive powders through multiple step in-situ passivation

Patent Anderson, Iver E.; Steinmetz, Andrew D.; Byrd, David J.

A method for gas atomization of oxygen-reactive reactive metals and alloys wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a protective reaction film on the atomized particles. The present invention is especially useful for making highly pyrophoric reactive metal or alloy atomized powders, such as atomized magnesium and magnesium alloy powders. The gaseous reactive species (agents) are introduced into the atomization spray chamber at locations downstream of a gas atomizing nozzle as determined by the desired powder or particle temperature for themore »« less
Full Text Available
Passivation and alloying element retention in gas atomized powders

Patent Heidloff, Andrew J.; Rieken, Joel R.; Anderson, Iver E.

A method for gas atomization of a titanium alloy, nickel alloy, or other alumina (Al.sub.2O.sub.3)-forming alloy wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a passivation reaction film on the atomized particles wherein the reaction film retains a precursor halogen alloying element that is subsequently introduced into a microstructure formed by subsequent thermally processing of the atomized particles to improve oxidation resistance.
Full Text Available
Passivation and alloying element retention in gas atomized powders

Patent Heidloff, Andrew J.; Rieken, Joel R.; Anderson, Iver E.

A method for gas atomization of a titanium alloy, nickel alloy, or other alumina (Al2O3)-forming alloy wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a passivation reaction film on the atomized particles wherein the reaction film retains a precursor halogen alloying element that is subsequently introduced into a microstructure formed by subsequent thermally processing of the atomized particles to improve oxidation resistance.
Full Text Available
In situ formation of magnetite reactive barriers in soil for waste stabilization

Patent Moore, Robert C [Edgewood, NM]

Reactive barriers containing magnetite and methods for making magnetite reactive barriers in situ in soil for sequestering soil contaminants including actinides and heavy metals, organic materials, iodine and technetium are disclosed. According to one embodiment, a two-step reagent introduction into soil takes place. In the first step, free oxygen is removed from the soil by separately injecting into the soil aqueous solutions of iron (II) salt, for example FeCl.sub.2, and base, for example NaOH or NH.sub.3 in about a 1:1 volume ratio. Then, in the second step, similar reagents are injected a second time (however, according to about a 1:2more »« less
Full Text Available

Similar Records

Title: Stability of gas atomized reactive powders through multiple step in-situ passivation

Abstract

Citation Formats

Product of a halogen containing Ti-Al system intermetallic compound having a superior oxidation and wear resistance patent, September 1995

Characterisation of protective surface films formed on molten magnesium protected by air/SF6 atmospheres journal, February 2002

Surface-Modified Magnesium Powders For Use In Pyrotechnic Compositions patent-application, January 2009

Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions patent, November 1994

Atomizing apparatus for making polymer and metal powders and whiskers patent, March 2003

Electric arc spraying of reactive metals patent, February 1991

Protection behavior of fluorine-containing cover gases on molten magnesium alloys journal, July 2010

Thermal Decomposition of NF 3 with Various Oxides journal, January 1996

Production Of Alloys Based On Titanium Aluminides patent-application, May 2010

Environmentally stable reactive alloy powders and method of making same patent, September 1998

Atomizing nozzle and process patent, June 1992

Method of making environmentally stable reactive alloy powders patent, December 1994

Highly tuned gas atomization for controlled preparation of coarse powder. Hochleistungsgasverdüsung für die gezielte Präparation grober Pulver journal, July 2010

Analysis of the spray deposition process journal, February 1989

Apparatus for making environmentally stable reactive alloy powders patent, December 1996

Behaviour of CaO coating of gas atomized Mg powders using mechanical milling process journal, June 2011

The Oxidation and Evaporation of Magnesium at Temperatures from 400° to 500° C journal, January 1945

Characterisation of the surface films formed on molten magnesium in different protective atmospheres journal, July 2002

Product of a halogen containing Ti-Al system intermetallic compound having a superior oxidation and wear resistance
patent, September 1995

Characterisation of protective surface films formed on molten magnesium protected by air/SF₆ atmospheres
journal, February 2002

Surface-Modified Magnesium Powders For Use In Pyrotechnic Compositions
patent-application, January 2009

Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions
patent, November 1994

Atomizing apparatus for making polymer and metal powders and whiskers
patent, March 2003

Electric arc spraying of reactive metals
patent, February 1991

Protection behavior of fluorine-containing cover gases on molten magnesium alloys
journal, July 2010

Thermal Decomposition of NF ₃ with Various Oxides
journal, January 1996

Production Of Alloys Based On Titanium Aluminides
patent-application, May 2010

Environmentally stable reactive alloy powders and method of making same
patent, September 1998

Atomizing nozzle and process
patent, June 1992

Method of making environmentally stable reactive alloy powders
patent, December 1994

Highly tuned gas atomization for controlled preparation of coarse powder. Hochleistungsgasverdüsung für die gezielte Präparation grober Pulver
journal, July 2010

Analysis of the spray deposition process
journal, February 1989

Apparatus for making environmentally stable reactive alloy powders
patent, December 1996

Behaviour of CaO coating of gas atomized Mg powders using mechanical milling process
journal, June 2011

The Oxidation and Evaporation of Magnesium at Temperatures from 400° to 500° C
journal, January 1945

Characterisation of the surface films formed on molten magnesium in different protective atmospheres
journal, July 2002