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U.S. Department of Energy
Office of Scientific and Technical Information

Investigations of intermetallic alloy hydriding mechanisms. Annual progress report, May 1, 1980-February 28, 1981

Technical Report ·
OSTI ID:6316782
Microstructural characterization of the hydrogen storage alloys has progressed in the La-Co, La-CoNi alloy system. The techniques employed in microstructural characterization were: optical metallography, x-ray powder pattern analysis, electron microprobe, and scanning electron microscopy with x-ray energy dispersive analysis. The extensive kinetic measurements undertaken during the previous periods indicated that the surface conditions were as important as bulk conditions in obtaining realistic rates. Two types of measurements were employed to monitor surface phenomena. The microbalance was first employed in direct in-situ measurements of normal air poisons and in the characterization of activation. Secondly, magnetic monitoring was used to characterize the surface segregation thought by many observers to be important in poisoning and/or resistance to it.
Research Organization:
Georgia Inst. of Tech., Atlanta (USA). Engineering Experiment Station
DOE Contract Number:
AS05-76ER05246
OSTI ID:
6316782
Report Number(s):
DOE/ER/05246-T2; ON: DE85000858
Country of Publication:
United States
Language:
English