Automotive storage of hydrogen using modified magnesium hydrides. Final report, March 1976-March 1978

Abstract

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Automotive storage of hydrogen using modified magnesium hydrides. Final report, March 1976-March 1978

“…During t h i s program rather extensive metallurgical studies were conducted on Alloys 149 and 159 in both unhydrided and p a r t i a l l y hydrided forms. The two main objectives of the Scanning Electron Microscope (SEM) study and microprobe analyses were (1) to identify visually the constituent phase(s1 showing the greatest propensity for hydridinq and (2) The second e u t e c t i c phase consists of the Mg-rich terminal s o l i d solution, i.e., predominantly M g metal, occupying i n t e r c e l l u l a r positions i n narrow bands typically p a r a l l e l to the proeutectic needles discussed above. Total volume of t h i s phase i n banded form does not exceed *10 percent.…”