Atomistic models of point defects in plutonium metal. Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Title

  • Main Title Atomistic models of point defects in plutonium metal.

Creator

  • Author: Valone, S. M. (Steven M.)
    Creator Type: Personal
  • Author: Baskes, M. I. (Michael I.)
    Creator Type: Personal
  • Author: Uberuaga, B. P. (Blas Pedro)
    Creator Type: Personal
  • Author: Voter, A. F.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: United States

Date

  • Creation: 2003-01-01

Language

  • English

Description

  • Content Description: The aging properties of plutonium (Pu) metal and alloys are. driven by a combination of materials composit ion, p rocessing history, and self-irradiat ion effects . Understanding these driving forces requires a knowledge of both t h ermodynamic and defect properties of the material . The multiplicity of phases and the small changes in tempe rat u re, pressure, and/or stress that can induce phase changes lie at the heart of these properties . In terms of radiation damage, Pu metal represents a unique situation because of the large volume chan ges that accompany the phase changes . The most workable form of the meta l is the fcc (S-) phase, which in practice is stabi l ized by addit io n of a ll oying el eme n ts s u c h as Ga or Al. The thermodynamically stable phase at ambient conditions is the monoclinic (a-) phase, which, however, is 2 0 % lower i n volume th an the S phase . In stabilized Pu metal, there is an in t er play between th e n atu ral swe l li n g tendencies of fcc metals and the volume-contraction tendency of the u n d erlyin g thermodynamicall y stable phase. This study exp lores the point d efect pr operties that are necessary to model the long-term outcome of this interplay.
  • Physical Description: [5] p.

Subject

  • Keyword: Aging
  • Keyword: Alloys
  • Keyword: Multiplicity
  • STI Subject Categories: 36 Materials Science
  • Keyword: Point Defects
  • Keyword: Radiations
  • Keyword: Defects
  • Keyword: Plutonium

Source

  • Conference: Submitted to: Extended Abstract For Presentation at Plutonium Futures 2003, Conference, July 6-10, 2003, Albuquerque, NM

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: LA-UR-03-0754
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976547
  • Archival Resource Key: ark:/67531/metadc933802