Surface effects on tritium diffusion in materials in a radiation environment

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Description

Tritium transport and distribution in a material are controlled by chemical potential and thermal gradients and cross-coupling to impurities and defects. Surfaces influence tritium diffusion by acting as sources and sinks for defects and impurities, and surface films restricting tritium transfer between the solid and surrounding fluids. Radiation directly affects boundary processes such as dissociation or adsorption, may erode a surface film or the surface itself, and introduces defects and impurities into the solid by radiation damage, transmutation, or ion implantation, thereby modifying tritium transport within the solid and its transfer across external interfaces. There have been no definitive investigations ... continued below

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Pages: 39

Creation Information

Caskey, G.R. Jr. January 1, 1975.

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  • Savannah River Laboratory
    Publisher Info: Du Pont de Nemours (E.I.) and Co., Aiken, S.C. (USA). Savannah River Lab.
    Place of Publication: Aiken, South Carolina

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Description

Tritium transport and distribution in a material are controlled by chemical potential and thermal gradients and cross-coupling to impurities and defects. Surfaces influence tritium diffusion by acting as sources and sinks for defects and impurities, and surface films restricting tritium transfer between the solid and surrounding fluids. Radiation directly affects boundary processes such as dissociation or adsorption, may erode a surface film or the surface itself, and introduces defects and impurities into the solid by radiation damage, transmutation, or ion implantation, thereby modifying tritium transport within the solid and its transfer across external interfaces. There have been no definitive investigations of these effects, but their practical significance has been demonstrated in tritium release or absorption studies with stainless steel, Zircaloy, niobium, and other materials. (auth)

Physical Description

Pages: 39

Notes

Dep. NTIS

Source

  • 170. American Chemical Society national meeting, Chicago, Illinois, USA, 24 Aug 1975

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  • Report No.: DP-MS--75-55
  • Report No.: CONF-750806--4
  • Grant Number: AT(07-2)-1
  • Office of Scientific & Technical Information Report Number: 4161215
  • Archival Resource Key: ark:/67531/metadc866719

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  • January 1, 1975

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Feb. 17, 2017, 3:03 p.m.

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Caskey, G.R. Jr. Surface effects on tritium diffusion in materials in a radiation environment, article, January 1, 1975; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc866719/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.