Time-dependent local and average structural evolution of δ-phase 239Pu-Ga alloys

Smith, Alice I.; Page, Katharine L.; Siewenie, Joan E.; Losko, Adrian S.; Vogel, Sven C.; Gourdon, Olivier A.; Richmond, Scott; Saleh, Tarik A.; Ramos, Michael; Schwartz, Daniel S.

doi:10.1557/adv.2016.541

Title: Time-dependent local and average structural evolution of δ-phase ²³⁹Pu-Ga alloys

Abstract

Here, plutonium metal is a very unusual element, exhibiting six allotropes at ambient pressure, between room temperature and its melting point, a complicated phase diagram, and a complex electronic structure. Many phases of plutonium metal are unstable with changes in temperature, pressure, chemical additions, or time. This strongly affects structure and properties, and becomes of high importance, particularly when considering effects on structural integrity over long periods of time [1]. This paper presents a time-dependent neutron total scattering study of the local and average structure of naturally aging δ-phase²³⁹Pu-Ga alloys, together with preliminary results on neutron tomography characterization.

Authors:

Smith, Alice I. ^[1]; Page, Katharine L. ^[2]; Siewenie, Joan E. ^[2]; Losko, Adrian S. ^[3]; Vogel, Sven C. ^[1]; Gourdon, Olivier A. ^[1]; Richmond, Scott ^[1]; Saleh, Tarik A. ^[1]; Ramos, Michael ^[1]; Schwartz, Daniel S. ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of California, Berkeley, CA (United States)

Publication Date:: Fri Aug 05 00:00:00 EDT 2016

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1324570

Report Number(s):: LA-UR-16-22439
Journal ID: ISSN 2059-8521; applab

Grant/Contract Number:: AC52-06NA25396

Resource Type:: Accepted Manuscript

Journal Name:: MRS Advances

Additional Journal Information:: Journal Name: MRS Advances; Journal ID: ISSN 2059-8521

Publisher:: Materials Research Society (MRS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Smith, Alice I., Page, Katharine L., Siewenie, Joan E., Losko, Adrian S., Vogel, Sven C., Gourdon, Olivier A., Richmond, Scott, Saleh, Tarik A., Ramos, Michael, and Schwartz, Daniel S. Time-dependent local and average structural evolution of δ-phase 239Pu-Ga alloys.  United States: N. p., 2016. 
Web.  doi:10.1557/adv.2016.541.

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                    Smith, Alice I., Page, Katharine L., Siewenie, Joan E., Losko, Adrian S., Vogel, Sven C., Gourdon, Olivier A., Richmond, Scott, Saleh, Tarik A., Ramos, Michael, & Schwartz, Daniel S. Time-dependent local and average structural evolution of δ-phase 239Pu-Ga alloys.  United States.  https://doi.org/10.1557/adv.2016.541

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                    Smith, Alice I., Page, Katharine L., Siewenie, Joan E., Losko, Adrian S., Vogel, Sven C., Gourdon, Olivier A., Richmond, Scott, Saleh, Tarik A., Ramos, Michael, and Schwartz, Daniel S. Fri .  
"Time-dependent local and average structural evolution of δ-phase 239Pu-Ga alloys".  United States.  https://doi.org/10.1557/adv.2016.541.  https://www.osti.gov/servlets/purl/1324570.

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@article{osti_1324570,

  title        = {Time-dependent local and average structural evolution of δ-phase 239Pu-Ga alloys},

  author       = {Smith, Alice I. and Page, Katharine L. and Siewenie, Joan E. and Losko, Adrian S. and Vogel, Sven C. and Gourdon, Olivier A. and Richmond, Scott and Saleh, Tarik A. and Ramos, Michael and Schwartz, Daniel S.},

  abstractNote = {Here, plutonium metal is a very unusual element, exhibiting six allotropes at ambient pressure, between room temperature and its melting point, a complicated phase diagram, and a complex electronic structure. Many phases of plutonium metal are unstable with changes in temperature, pressure, chemical additions, or time. This strongly affects structure and properties, and becomes of high importance, particularly when considering effects on structural integrity over long periods of time [1]. This paper presents a time-dependent neutron total scattering study of the local and average structure of naturally aging δ-phase239Pu-Ga alloys, together with preliminary results on neutron tomography characterization.},

  doi          = {10.1557/adv.2016.541},

  journal      = {MRS Advances},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Aug 05 00:00:00 EDT 2016},

  month        = {Fri Aug 05 00:00:00 EDT 2016}

}

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Works referenced in this record:

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Similar Records

Title: Time-dependent local and average structural evolution of δ-phase 239Pu-Ga alloys

Abstract

Citation Formats

Fundamental Studies of Plutonium Aging journal, September 2001

PDFgetN : a user-friendly program to extract the total scattering structure factor and the pair distribution function from neutron powder diffraction data journal, August 2000

Vibrational properties of Ga-stabilized δ − Pu by extended x-ray absorption fine structure journal, June 2002

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Study by XRD of the lattice swelling of PuGa alloys induced by self-irradiation journal, June 2007

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Title: Time-dependent local and average structural evolution of δ-phase ²³⁹Pu-Ga alloys

Fundamental Studies of Plutonium Aging
journal, September 2001

PDFgetN : a user-friendly program to extract the total scattering structure factor and the pair distribution function from neutron powder diffraction data
journal, August 2000

Vibrational properties of Ga-stabilized $δ - Pu$ by extended x-ray absorption fine structure
journal, June 2002

Effect of radiation on bulk swelling of plutonium alloys
journal, April 2007

Effects of self-irradiation in plutonium alloys
journal, April 2016

Application of X-Ray Absorption Fine Structure Spectroscopy to Materials and Environmental Science
journal, July 1998

PDF analysis of PuAl alloys local structure
journal, March 2009

Study by XRD of the lattice swelling of PuGa alloys induced by self-irradiation
journal, June 2007

Short-range atomic structure of 1 wt. % Ga δ-stabilized plutonium by x-ray-absorption fine-structure spectroscopy
journal, January 1995

The plutonium-gallium system
journal, July 1964

Texture analysis with the new HIPPO TOF diffractometer
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Neutron Production, Neutron Facilities and Neutron Instrumentation
journal, January 2006

Local structure and vibrational properties of $α$ -Pu, $α$ -U, and the $α$ -U charge-density wave
journal, May 2005