The phase diagram of hydrogen in ultra thin films

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This paper, we discuss changes in the phase diagram of hydrogen in both bilayer (i.e. 200-2000 {Angstrom} Nb/100 {Angstrom} Pd on glass) and multilayer configurations. Comparison of x-ray diffraction, electrical resistivity and volumetric measurements of the films before and after hydrogen charging indicate that the phase equilibria between a correlated (high concentration) and a dilute phase of hydrogen in Nb is not sensitive to the number of layers in the films. On the other hand, the experimental methods show different behavior for 200 {Angstrom} thick Nb films and thicker (>400 {Angstrom}) Nb layers. The diffraction results also show that, while ... continued below

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6 p.

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Jisrawi, N.M.; Ruckman, M.W.; Reisfeld, G.; Wiesmann, H.; Loeb, F; Gallego, E. et al. December 31, 1995.

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This paper, we discuss changes in the phase diagram of hydrogen in both bilayer (i.e. 200-2000 {Angstrom} Nb/100 {Angstrom} Pd on glass) and multilayer configurations. Comparison of x-ray diffraction, electrical resistivity and volumetric measurements of the films before and after hydrogen charging indicate that the phase equilibria between a correlated (high concentration) and a dilute phase of hydrogen in Nb is not sensitive to the number of layers in the films. On the other hand, the experimental methods show different behavior for 200 {Angstrom} thick Nb films and thicker (>400 {Angstrom}) Nb layers. The diffraction results also show that, while charging with hydrogen, the Nb layers mainly expand along the surface normal of the films, while the Pd layers expand in all directions equally, and transform to the bulk {alpha} phase.

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6 p.

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OSTI as DE96007711

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  • Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 27 Nov - 1 Dec 1995

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  • Other: DE96007711
  • Report No.: BNL--62566
  • Report No.: CONF-951155--59
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 198870
  • Archival Resource Key: ark:/67531/metadc669673

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  • December 31, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Nov. 24, 2015, 7:14 p.m.

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Jisrawi, N.M.; Ruckman, M.W.; Reisfeld, G.; Wiesmann, H.; Loeb, F; Gallego, E. et al. The phase diagram of hydrogen in ultra thin films, article, December 31, 1995; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc669673/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.