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Ion Beam Analyses of Moisture Reaction for Single Crystal Lithium Deuteride

Published online by Cambridge University Press:  27 February 2020

C. Haertling ,
R. J. Hanrahan Jr. ,
Y. Wang  and
C. Wetteland
C. Haertling*
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87544
R. J. Hanrahan Jr.
Affiliation:
U.S. Department of Energy, Washington, D.C. 20585
Y. Wang
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87544
C. Wetteland
Affiliation:
University of Tennessee, Knoxville, TN 37996
*
*(Email: chaert@lanl.gov)
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Abstract

Ion beam analyses were completed on single crystal LiD (lithium hydride with deuterium on the hydrogen sites) to determine products of hydrolysis with decarbonated H2O (with protium-hydrogen) in an inert gas. Rutherford backscattering spectrometry showed movement of oxygen into the bulk of LiD samples. Hydrolysis rates for the single crystal LiD showed relatively slow initial growth of an oxygen-containing layer. Final growth rates varied widely with H2O level, from 1010 to 1015 (atoms/cm2)/min. at 5.6 and 28 mmol/min. H2O respectively. Simulations of spectra show the hydrolysis product to be LiOH. Elastic recoil detection identifies the hydrogen in the hydroxide layer upon dosing with H2O (with natural, protiated hydrogen) as primarily protium. Micrographs showed island growth occurring initially, with convergence to a full-coverage hydrolysis layer.

Keywords

Liion beam analysis
Type
Articles
Information
MRS Advances , Volume 5 , Issue 11: Energy and Environment , 2020 , pp. 549 - 558
Copyright
Copyright © Materials Research Society 2020

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References

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