Investigations of intermetallic alloy hydriding mechanisms. Annual progress report, May 1, 1980-February 28, 1981. [LaNi/sub 5/; LaCo/sub 5/]

Technical Report · Sat Feb 28 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6580831· OSTI ID:6580831

Livesay, B. R.; Larsen, J. W.

Objective is to study the relations between structural and physical characteristics and the hydrogen interaction kinetics of the AB/sub 5/ transition metal-rare earth compounds. LaCo/sub 5/ and LaNi/sub 5/ were mainly used. Magnetic studies is providing details on the Ni-rich precipitates in LaNi/sub 5/. Reactions with poison gases indicate that storage alloy surface segregation results from the chemical potential associated with oxygen at the alloy surface. SEM micrographs show that each LaNi/sub 5/ particle has a large number of facets. (DLC)

• Research Organization: Georgia Inst. of Tech., Atlanta (USA). Engineering Experiment Station
• DOE Contract Number: AS05-76ER05246
• OSTI ID: 6580831
• Report Number(s): DOE/ER/05246-T1
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080201* -- Hydrogen-- Chemisorption Storage
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CHEMICAL REACTIONS
COBALT ALLOYS
HYDRIDATION
HYDROGEN STORAGE
INTERMETALLIC COMPOUNDS
LANTHANUM ALLOYS
MAGNETIC MOMENTS
NICKEL ALLOYS
PRECIPITATION
RARE EARTH ALLOYS
SEPARATION PROCESSES
STORAGE