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Dilute solution of hydrogen and deuterium in (C-15) TiCr/sub 1/ /sub 8 [electronic resource].

Published
Upton, N.Y. : Brookhaven National Laboratory, 1979.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
Pages: 22 : digital, PDF file
Additional Creators
Brookhaven National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The dilute solution of hydrogen (and deuterium) in the intermetallic compound TiCr/sub 1/ /sub 8/ differs significantly from the behavior exhibited by hydrogen in pure metals and in random binary alloys. Specifically, (1) the solution of hydrogen in TiCr/sub 1/ /sub 8/ exhibits pronounced positive deviation from Sieverts' Law; (2) the partial molar enthalpy at infinite dilution is significantly more exothermic than the enthalpy of hydride formation; (3) the relative partial molar enthalpy of solution of hydrogen increases with increasing hydrogen content; and (4) the excess free energy of hydrogen solution increases with hydrogen content. These results parallel the behavior of hydrogen in the intermetallic LaNi/sub 5/, and suggest the intriguing possibility that such behavior is common to the solution of hydrogen in all intermetallic compounds. A comparison of the solubility of hydrogen and deuterium in TiCr/sub 1/ /sub 8/ allows an estimation of the hydrogen vibrational frequency, ..nu../sub H/ = 1530 cm/sup -1/. X-ray diffraction data reveal that the partial molar volume of hydrogen in TiCr/sub 1/ /sub 8/ = (1.01 cm/sup 3/) is about 30% smaller than the value generally observed in pure metals or random binary alloys.
Report Numbers
E 1.99:bnl-25483
E 1.99: conf-790301-1
conf-790301-1
bnl-25483
Subject(s)
Note
Published through SciTech Connect.
01/01/1979.
"bnl-25483"
" conf-790301-1"
Hydrogen in metals international meeting, Munster, F.R. Germany, 6 Mar 1979.
Lynch, J.F.; Johnson, J.R.; Reilly, J.J.
Funding Information
EY-76-C-02-0016
View MARC record | catkey: 24042915