Nanocrystallization and hydrogen storage in rapidly solidified Mg–Ni–RE alloys

Influence of partial replacement of cerium-rich mischmetal (CeMM) by yttrium on the crystallization and mechanical properties of amorphous Mg80Ni10CeMM10 alloy

“…Interest in amorphous and/or nanocrystalline structure is due to the increase in the hydriding/dehydriding kinetics [8]. Furthermore, yttrium [9,10] or rare earth [11] additions also contribute to catalyse such kinetics. This fact has motivated the study of crystallization and hydrogenation properties of alloys containing high volume fractions of the Mg 2 Ni phase and high yttrium or rare earth contents as well.…”

Magnesium-based materials for hydrogen storage: Recent advances and future perspectives

“…Recently, amorphous and nanocrystalline Mg-Ni-Re alloys (Re=Y, Ce, La, Mm) produced by rapid solidification have attracted considerable interests for hydrogen storage materials due to the improvement of hydrogenation characteristics [95][96][97][98] . The rapid solidification technique can produce amorphous Mg-based alloys with the desirable composition for hydrogen storage.…”

Hydrogen storage properties of nanocrystalline and amorphous Pr–Mg–Ni-based alloys synthesized by mechanical milling

“…Particularly, reducing the grain sizes to nanometer level can dramatically speed up hydriding/dehydriding rate of the alloys [13,14]. Some techniques, including: (a) rapid solidification (RS) [15], (b) mechanical milling (MA) [16], (c) equal channel angular pressing (ECAP) [17], (d) hydriding combustion synthesis [18] have been used to prepare nanocrystalline and amorphous alloys. Among them, the first two are the most mature techniques.…”