Metal hydride composition and method of making

Patent · Sun Jan 01 00:00:00 EST 1995

OSTI ID:870033

Congdon, James W ^[1]

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1. Aiken, SC

A dimensionally stable hydride composition and a method for making such a composition. The composition is made by forming particles of a metal hydride into porous granules, mixing the granules with a matrix material, forming the mixture into pellets, and sintering the pellets in the absence of oxygen. The ratio of matrix material to hydride is preferably between approximately 2:1 and 4:1 by volume. The porous structure of the granules accommodates the expansion that occurs when the metal hydride particles absorb hydrogen. The porous matrix allows the flow of hydrogen therethrough to contact the hydride particles, yet supports the granules and contains the hydride fines that result from repeated absorption/desorption cycles.

• 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 5443616
• OSTI ID: 870033
• Country of Publication: United States
• Language: English

Related Subjects

metal
hydride
composition
method
dimensionally
stable
forming
particles
porous
granules
mixing
matrix
material
mixture
pellets
sintering
absence
oxygen
ratio
preferably
approximately
volume
structure
accommodates
expansion
occurs
absorb
hydrogen
allows
flow
therethrough
contact
supports
contains
fines
result
repeated
absorption
desorption
cycles
porous structure
matrix material
metal hydride
hydride particles
dimensionally stable
absorb hydrogen
particles absorb
hydride composition
porous matrix
desorption cycles
/75/419/420/502/