Properties and thermal stabilities of amorphous transition metal hydrides. [Zr/sub 2/PdH/sub x/; Zr/sub 3/RhH/sub x/]

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6458466

Bowman, Jr, R C; Cantrell, J S; Venturini, E L; Schulz, R; Wagner, J E; Attalla, A; Craft, B D

Amorphous a-Zr/sub 2/PdH/sub x/ and a-Zr/sub 3/RhH/sub x/ exhibit enhanced proton diffusion relative to that observed in related crystalline hydrides. The magnetic susceptibilities and superconducting T/sub c/ values for these glasses indicate systematic decreases in the densities of Fermi level electronic states with increasing hydrogen content. When the glassy alloys are heated above 700K, they undergo exothermic transitions to form crystalline intermetallics. However, the glassy hydrides irreversibly decompose to produce crystalline ZrH/sub x/ under similar conditions. Several differences are noted between the thermal stabilities of a-Zr/sub 2/PdH/sub x/ and a-Zr/sub 3/RhH/sub x/.

• Research Organization: Monsanto Research Corp., Miamisburg, OH (USA). Mound; Miami Univ., Oxford, OH (USA). Dept. of Chemistry; Sandia National Labs., Albuquerque, NM (USA); California Inst. of Tech., Pasadena (USA)
• DOE Contract Number: AC04-76DP00789; AC04-76DP00053
• OSTI ID: 6458466
• Report Number(s): MLM-3156(OP); CONF-8409107-7; ON: DE85002117
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
AMORPHOUS STATE
CHEMICAL REACTIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GLASS
HYDRIDATION
HYDRIDES
HYDROGEN COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
METALLIC GLASSES
PALLADIUM COMPOUNDS
PALLADIUM HYDRIDES
PHYSICAL PROPERTIES
RHODIUM COMPOUNDS
RHODIUM HYDRIDES
STABILITY
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES