Application of EELS to the study of metal-hydrogen systems

Journal Article · Thu Jan 01 00:00:00 EST 1981 · Proc. - Annu. Meet., Electron Microsc. Soc. Am.; (United States)

OSTI ID:6312603

Zaluzec, N J; Schober, T; Westlake, D G

This is a preliminary study of metal-hydrogen systems using the technique of electron energy loss spectroscopy (EELS) in an analytical electron microscopy (AEM). The study of hydrogen in rare earth metals using EELS was first reported in 1976; plasmon scattering was measured in various metal and hydride phases in that study as well as in this study. Hydrogenated specimens of Zr, Ti, Mg, V and FeTi containing second phase regions of the hydrides: 8-ZrH/sub 1/ /sub 6/, TiH/sub 2/, MgH/sub 2/, B-VH/sub 2/ and both B-FeTiH and ..gamma..-FeTiH/sub 2/ were studied using a Philips EM400 AEM fitted with a ..pi../2 magnetic sector. Experimental data was included showing the effects of the formation of the hydride phase on the EEL spectra in Zr, Ti, and Mg. Energy shifts of approx. 1.5, approx. 2.8 and approx. 4.2 eV were measured for Zr, Ti, and Mg respectively, while no detectable shift was found for the V and FeTi systems. The hydride phase of Mg is an insulator. The formation of hydride phases in the Zr system markedly affects the electronic properties, while in the V system electrical resistivity measurements show no change between the metal and hydride phases. This correlates well with the energy peaks suggests the density of loosely bound electrons is not significantly affected by the presence of hydrogen. 1 figure, 1 table. (DP)

• Research Organization: Argonne National Lab., IL
• OSTI ID: 6312603
• Journal Information: Proc. - Annu. Meet., Electron Microsc. Soc. Am.; (United States), Journal Name: Proc. - Annu. Meet., Electron Microsc. Soc. Am.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MAGNESIUM HYDRIDES
ELECTRONIC STRUCTURE
PHASE STUDIES
TITANIUM HYDRIDES
VANADIUM HYDRIDES
ZIRCONIUM HYDRIDES
ELECTRON LOSS
HYDROGEN
MAGNESIUM
SPECTROSCOPY
TITANIUM
VANADIUM
ZIRCONIUM
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
ELEMENTS
HYDRIDES
HYDROGEN COMPOUNDS
MAGNESIUM COMPOUNDS
METALS
NONMETALS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VANADIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies