Microstructure and activation characteristics of Mg–Ni alloy modified by multi-walled carbon nanotubes

摘要: An Mg–6 wt% Ni alloy was fabricated by a casting technique and the drilled chips ball-milled high energy ball milling to be examined for their hydrogenation modified with multi-walled carbon nanotubes (MWCNTs). The activation characteristics of are compared those materials obtained 5 MWCNTs 0.5, 1, 2, 10 h. enhanced absorption kinetics considerably in all cases. hydrogen content powder reached maximum capacity within 2 min exposure at 370 °C MPa pressure. X-ray diffraction analysis provided evidence that no carbon-containing phase formed during milling. However, reduced crystallite size, even if carried out only an hour. rate-controlling steps hydriding reactions different times were determined fitting respective kinetic equations. Evidence is nucleation growth hydrides accelerated drastically homogenous distribution on surface powders. We show very effective promoting hydriding/dehydriding kinetics, as well increasing magnesium alloy.