Structure of glassy early-transition-metal--late-transition-metal hydrides

Journal Article · Thu Sep 15 00:00:00 EDT 1983 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.28.2907· OSTI ID:5559035

Samwer, K; Johnson, W L

Hydrogen is used as a probe for obtaining structural information on metallic glasses. Results from experimental radial distribution functions of hydrided and unhydrided Zr/sub 3/Rh and Zr/sub 2/Pd 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 H/sub 2/, approx.200 /sup 0/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. We predict that H-H interaction should limit the upper value of hydrogen content in Zr-based glasses to 2.5 (H/metal atom).

• Research Organization: W. M. Keck Laboratory of Engineering, California Institute of Technology, Pasadena, California 91125
• OSTI ID: 5559035
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 28:6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
PALLADIUM ALLOYS
CRYSTAL STRUCTURE
HYDRIDATION
SUPERCONDUCTIVITY
X-RAY DIFFRACTION
RHODIUM ALLOYS
ZIRCONIUM ALLOYS
DISTRIBUTION FUNCTIONS
LOW PRESSURE
MEDIUM PRESSURE
METALLIC GLASSES
STATISTICAL MODELS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
ALLOYS
CHEMICAL REACTIONS
COHERENT SCATTERING
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FUNCTIONS
MATHEMATICAL MODELS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
SCATTERING
THERMODYNAMIC PROPERTIES
360104* - Metals & Alloys- Physical Properties
656102 - Solid State Physics- Superconductivity- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena- (-1987)