EXAMINATION OF 80 DEGREES C DESORPTION ISOTHERMS OFTRITIUM AGED PD/K AND LANA.75

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Metal hydrides, specifically Pd deposited on kieselguhr (Pd/k) and LaNi{sub 4.25}Al{sub 0.75} (LANA.75), have been used at the Savannah River Site for almost twenty years for hydrogen isotope separation and storage. Radiolytic decay of tritium to helium-3 in the metal matrix causes three classic changes in the performance of the hydride: the plateau pressure decreases, the plateau slope increases, and a heel forms, reducing the reversible capacity of the hydride. Deuterium and tritium isotherms were collected on the virgin materials, only tritium isotherms were collected at approximately 2 years, and both deuterium and tritium isotherms were collected at approximately 3.5 ... continued below

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Staack, G; Kirk Shanahan, K; Tom Walters, T & Roger Pilgrim, R August 28, 2007.

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Metal hydrides, specifically Pd deposited on kieselguhr (Pd/k) and LaNi{sub 4.25}Al{sub 0.75} (LANA.75), have been used at the Savannah River Site for almost twenty years for hydrogen isotope separation and storage. Radiolytic decay of tritium to helium-3 in the metal matrix causes three classic changes in the performance of the hydride: the plateau pressure decreases, the plateau slope increases, and a heel forms, reducing the reversible capacity of the hydride. Deuterium and tritium isotherms were collected on the virgin materials, only tritium isotherms were collected at approximately 2 years, and both deuterium and tritium isotherms were collected at approximately 3.5 years of quiescent aging. Points of interest include those mentioned above as well as the effects of cycling the materials. The methods and results are presented.

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  • Journal Name: Fusion Science and Technology

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  • Report No.: WSRC-STI-2007-00464
  • Grant Number: DE-AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 913454
  • Archival Resource Key: ark:/67531/metadc888370

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  • August 28, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 2, 2016, 12:49 p.m.

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Staack, G; Kirk Shanahan, K; Tom Walters, T & Roger Pilgrim, R. EXAMINATION OF 80 DEGREES C DESORPTION ISOTHERMS OFTRITIUM AGED PD/K AND LANA.75, article, August 28, 2007; [Aiken, South Carolina]. (digital.library.unt.edu/ark:/67531/metadc888370/: accessed October 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.