Microstructure and hydriding studies of AB/sub 5/ hydrogen storage compounds. Final report
New data on the microstructure, pressure-composition-temperature, and absorption/desorption kinetics of AB/sub 5/ metal hydrides are presented. The most significant result to emerge from the investigation is that many of the AB/sub 5/ metal hydrides, especially the LaNi/sub 5/ related materials, show instantaneous absorption and desorption response in proportion to the amount of cooling or heating which is provided. Eight categories of materials were studied: reference alloys (LaNi/sub 5/, LaNi/sub 4/ /sub 9/Al/sub 0/ /sub 1/, LaNi/sub 3/Co/sub 2/); Ni second phase particles (LaNi/sub 5/ /sub 67/, LaNi/sub 7/, LaNi/sub 11/ /sub 3/); eutectoid microstructure (SmCo/sub 5/); other second phases (LaNi/sub 3/ /sub 8/Fe/sub 1/ /sub 2/, LaNi/sub 3/ /sub 5/Cr/sub 1/ /sub 5/, LaNi/sub 4/Cr, LaNi/sub 4/Si; LaNi/sub 4/Sn, MNi/sub 4/Sn, MNi/sub 4/ /sub 3/Al/sub 0/ /sub 7/); substitutional elements (LaNi/sub 4/Cu, LaNi/sub 4/ /sub 5/Pd/sub 0/ /sub 5/, LaNi/sub 4/ /sub 7/Sn/sub 0/ /sub 3/, LaNi/sub 4/ /sub 8/C/sub 0/ /sub 2/, MNi/sub 4/ /sub 3/Mn/sub 0/ /sub 7/); surface active elements (LaNi/sub 4/ /sub 8/B/sub 0/ /sub 2/, LaNi/sub 4/ /sub 9/S/sub 0/ /sub 1/, LaNi/sub 4/ /sub 9/Se/sub 0/ /sub 1/); large diameter atom substitutions (Mg/sub 0/ /sub 1/La/sub 0/ /sub 9/Ni/sub 5/, Ca/sub 0/ /sub 2/La/sub 0/ /sub 8/Ni/sub 5/, Sr/sub 0/ /sub 2/La/sub 0/ /sub 8/Ni/sub 5/, Ba/sub 0/ /sub 2/La/sub 0/ /sub 8/Ni/sub 5/); other compositions (LaNi/sub 3/); and Pd plating (electroless plated samples and mechanically alloyed specimens).
- Research Organization:
- International Nickel Co., Inc., Suffern, NY (USA). INCO Research and Development Center
- DOE Contract Number:
- EY-76-C-04-0789
- OSTI ID:
- 5568617
- Report Number(s):
- SAND-79-7095
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
080201* -- Hydrogen-- Chemisorption Storage
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ABSORPTION
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BARIUM ADDITIONS
BARIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CALCIUM ADDITIONS
CALCIUM ALLOYS
CARBON ADDITIONS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM COMPOUNDS
CHROMIUM HYDRIDES
COBALT ALLOYS
COBALT COMPOUNDS
COBALT HYDRIDES
COPPER ALLOYS
COPPER COMPOUNDS
COPPER HYDRIDES
CRYSTAL STRUCTURE
DEHYDRIDATION
DESORPTION
HYDRIDATION
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN STORAGE
IRON ALLOYS
IRON COMPOUNDS
IRON HYDRIDES
KINETICS
LANTHANUM ALLOYS
MAGNESIUM ADDITIONS
MAGNESIUM ALLOYS
MAGNESIUM COMPOUNDS
MAGNESIUM HYDRIDES
MANGANESE ADDITIONS
MANGANESE ALLOYS
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL COMPOUNDS
NICKEL HYDRIDES
PALLADIUM ADDITIONS
PALLADIUM ALLOYS
PHASE STUDIES
PLATINUM METAL ALLOYS
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
SAMARIUM ALLOYS
SAMARIUM COMPOUNDS
SAMARIUM HYDRIDES
SILICON ALLOYS
SORPTIVE PROPERTIES
STORAGE
STRONTIUM ADDITIONS
STRONTIUM ALLOYS
SULFUR ADDITIONS
SURFACE PROPERTIES
TIN ADDITIONS
TIN ALLOYS
TIN COMPOUNDS
TIN HYDRIDES
TRANSITION ELEMENT COMPOUNDS