Structure of glassy early-transition metal - late transition-metal hydrides
Description
Hydrogen is used as a probe for obtaining structural information on metallic glasses. Results from experimental radial distribution functions of hydrided and unhydrided Zr3Rh and Zr2Pd glasses show a significant change in the nearest neighbor distance of Zr atoms. The measured distance suggests that hydrogen occupies mainly tetrahedral sites defined by four Zr atoms under normal hydriding conditions (1 atm. H2, approx. 200 C). A statistical model for these sites based on current dense random packing models is in good agreement with the observed absorption capacity for hydrogen. It is predicted that H-H interaction should limit the upper value of hydrogen content in Zr-based glasses to 2.5 (H/metal atom). 5 figures, 2 tables
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS, PC A03/MF A01; 1 as DE83010931.
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Additional details
Publishing Information
- Imprint Pagination
- 26 p.
- Report number
- CALT--822-139
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14778414
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ADSORPTION; AMORPHOUS STATE; GLASS; HYDRIDATION; HYDROGEN; INTERMETALLIC COMPOUNDS; PALLADIUM ALLOYS; RHODIUM ALLOYS; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; X-RAY DIFFRACTION; ZIRCONIUM ALLOYS; ZIRCONIUM HYDRIDES
- Descriptors DEC
- ALLOYS; CHEMICAL REACTIONS; COHERENT SCATTERING; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; HYDRIDES; HYDROGEN COMPOUNDS; NONMETALS; PHYSICAL PROPERTIES; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS