Calculation of vacancy wind contributions in ternary diffusion

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In the absence of kinetic cross interactions between diffusing components, intrinsic diffusion can be described by a simple atomic mobility model. For systems where the diffusional interactions among components cannot be ignored, the interactions can be related to a vacancy wind effect in which the intrinsic flux of a component is influenced by the net vacancy flux. Atomic mobilities are calculated at selected composition points on the diffusion paths of y-phase U-Pu- Zr diffusion couples investigated at 750 {degrees}C to assess the contribution by the vacancy wind effect to the intrinsic diffusion of the individual components. The results point to ... continued below

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7 p.

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Petri, M.C. & Dayananda, M.A. August 1, 1996.

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  • Petri, M.C. Argonne National Lab., IL (United States)
  • Dayananda, M.A. Purdue Univ., Lafayette, IN (United States). School of Materials Engineering

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Description

In the absence of kinetic cross interactions between diffusing components, intrinsic diffusion can be described by a simple atomic mobility model. For systems where the diffusional interactions among components cannot be ignored, the interactions can be related to a vacancy wind effect in which the intrinsic flux of a component is influenced by the net vacancy flux. Atomic mobilities are calculated at selected composition points on the diffusion paths of y-phase U-Pu- Zr diffusion couples investigated at 750 {degrees}C to assess the contribution by the vacancy wind effect to the intrinsic diffusion of the individual components. The results point to the possibility that a large vacancy wind contribution may cause a component to diffuse intrinsically up its own chemical potential gradient.

Physical Description

7 p.

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OSTI as DE96015090

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  • International conference on complex diffusive process in silicon materials, Nordkirchen (Germany), 5-9 Aug 1996

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  • Other: DE96015090
  • Report No.: ANL/ED/CP--91100
  • Report No.: CONF-960811--2
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 399997
  • Archival Resource Key: ark:/67531/metadc683857

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • August 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Dec. 16, 2015, 4:56 p.m.

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Petri, M.C. & Dayananda, M.A. Calculation of vacancy wind contributions in ternary diffusion, article, August 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc683857/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.