Dimensionally stable metallic hydride composition
Abstract
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.
- Inventors:
-
- Aiken, SC
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 869201
- Patent Number(s):
- 5296438
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- dimensionally; 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; /502/206/252/420/423/
Citation Formats
Heung, Leung K. Dimensionally stable metallic hydride composition. United States: N. p., 1994.
Web.
Heung, Leung K. Dimensionally stable metallic hydride composition. United States.
Heung, Leung K. Sat .
"Dimensionally stable metallic hydride composition". United States. https://www.osti.gov/servlets/purl/869201.
@article{osti_869201,
title = {Dimensionally stable metallic hydride composition},
author = {Heung, Leung K},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}