Dimensionally stable metallic hydride composition
- Aiken, SC
A stable, metallic hydride composition and a process for making such a composition. The composition comprises a uniformly blended mixture of a metal hydride, kieselguhr, and a ballast metal, all in the form of particles. The composition is made by subjecting a metal hydride to one or more hydrogen absorption/desorption cycles to disintegrate the hydride particles to less than approximately 100 microns in size. The particles are partly oxidized, then blended with the ballast metal and the kieselguhr to form a uniform mixture. The mixture is compressed into pellets and calcined. Preferably, the mixture includes approximately 10 vol. % or more kieselguhr and approximately 50 vol. % or more ballast. Metal hydrides that can be used in the composition include Zr, Ti, V, Nb, Pd, as well as binary, tertiary, and more complex alloys of La, Al, Cu, Ti, Co, Ni, Fe, Zr, Mg, Ca, Mn, and mixtures and other combinations thereof. Ballast metals include Al, Cu and Ni.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- DOE Contract Number:
- AC09-89SR18035
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 5296438
- OSTI ID:
- 869201
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
stable
metallic
hydride
composition
process
comprises
uniformly
blended
mixture
metal
kieselguhr
ballast
form
particles
subjecting
hydrogen
absorption
desorption
cycles
disintegrate
approximately
100
microns
size
partly
oxidized
uniform
compressed
pellets
calcined
preferably
10
vol
50
hydrides
zr
nb
pd
binary
tertiary
complex
alloys
cu
mg
mn
mixtures
combinations
metals
metal hydrides
blended mixture
composition comprises
metal hydride
hydride particles
dimensionally stable
stable metal
uniform mixture
hydride composition
hydrogen absorption
metallic hydride
desorption cycles
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