Nuclear magnetic resonance studies of metal-hydrogen systems
Thesis/Dissertation
·
OSTI ID:6071452
Pulsed nuclear magnetic resonance methods have been used to investigate the properties of various metal-hydrogen systems, including ZrH{sub x}, ScH{sub x}, NbH{sub x}, VH{sub x} etc. For pure dihydride-phase samples of ZrH{sub x}, the spin-lattice relaxation time T{sub 1} was measured as a function of temperature in the temperature range from 10 to 1300 K at 12.2 and 40 MHz. T{sub 1} measurements at temperatures below 300 K reveal that the d-band electronic states are split due to the Jahn-Teller effect. For dilute solid solution {alpha}-phase Sch{sub x}, T{sub 1} of both {sup 1}H and {sup 45}Sc was measured as a function of temperature to investigate hydrogen diffusion. Also observed was anomalous behavior of the proton spin-lattice relaxation time T1 at high temperatures (up to 1300 K) for hydrogen in faced-centered-cubic (fcc) dihydride phases of ZrH{sub x}, TiH{sub x}, YH{sub x} and LaH{sub x} and in the body-centered cubic (bcc) solid solution phases of NbH{sub x}, VH{sub x} and their alloys.
- Research Organization:
- Iowa State Univ. of Science and Technology, Ames, IA (USA)
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 6071452
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
FREQUENCY RANGE
HYDRIDES
HYDROGEN COMPOUNDS
LANTHANUM COMPOUNDS
LANTHANUM HYDRIDES
MAGNETIC RESONANCE
MHZ RANGE
MHZ RANGE 01-100
NIOBIUM COMPOUNDS
NIOBIUM HYDRIDES
NUCLEAR MAGNETIC RESONANCE
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RELAXATION
RESONANCE
SCANDIUM COMPOUNDS
SCANDIUM HYDRIDES
SPIN-LATTICE RELAXATION
TEMPERATURE DEPENDENCE
TITANIUM COMPOUNDS
TITANIUM HYDRIDES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM HYDRIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
FREQUENCY RANGE
HYDRIDES
HYDROGEN COMPOUNDS
LANTHANUM COMPOUNDS
LANTHANUM HYDRIDES
MAGNETIC RESONANCE
MHZ RANGE
MHZ RANGE 01-100
NIOBIUM COMPOUNDS
NIOBIUM HYDRIDES
NUCLEAR MAGNETIC RESONANCE
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RELAXATION
RESONANCE
SCANDIUM COMPOUNDS
SCANDIUM HYDRIDES
SPIN-LATTICE RELAXATION
TEMPERATURE DEPENDENCE
TITANIUM COMPOUNDS
TITANIUM HYDRIDES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM HYDRIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES