Isotope Effects and Helium Retention Behavior in Vanadium Tritide

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Description

The relaxation times of the H, T, and 3He nuclei have been measured in vanadium hydride and tritide samples. Substantial isotope effects in both the phase transition temperatures and diffusion parameters have been found. When compared to hydrides, the tritide samples have lower transition temperatures and faster mobilities. The differences in the occupancies of the interstitial sites are largely responsible for these isotope effects. Most of the helium atoms generated by tritium decay remain trapped in microscopic bubbles formed with the VTx lattice. Evidence is presented for the gradual growth of the helium bubbles over periods of hundreds of days.

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Bowman, Jr., R. C. & Attalla, A., and Craft, B. D. April 1, 1985.

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  • Mound Plant (U.S.)
    Publisher Info: MOUND (Mound Plant, Miamisburg, OH (United States))
    Place of Publication: Miamisburg, Ohio

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Description

The relaxation times of the H, T, and 3He nuclei have been measured in vanadium hydride and tritide samples. Substantial isotope effects in both the phase transition temperatures and diffusion parameters have been found. When compared to hydrides, the tritide samples have lower transition temperatures and faster mobilities. The differences in the occupancies of the interstitial sites are largely responsible for these isotope effects. Most of the helium atoms generated by tritium decay remain trapped in microscopic bubbles formed with the VTx lattice. Evidence is presented for the gradual growth of the helium bubbles over periods of hundreds of days.

Source

  • Second Topical Meeting on Tritium Technology in Fission, Fusion, and Isotopic Applications, Dayton, Ohio, 30 April - 2 May 1985; also Fusion Technology, Special Supplement, September, 1985

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  • Report No.: MLM-3257(OP)
  • Grant Number: AC04-76DP00053
  • Office of Scientific & Technical Information Report Number: 970763
  • Archival Resource Key: ark:/67531/metadc934126

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Office of Scientific & Technical Information Technical Reports

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  • April 1, 1985

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Feb. 17, 2017, 3:28 p.m.

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Bowman, Jr., R. C. & Attalla, A., and Craft, B. D. Isotope Effects and Helium Retention Behavior in Vanadium Tritide, article, April 1, 1985; Miamisburg, Ohio. (digital.library.unt.edu/ark:/67531/metadc934126/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.