论文部分内容阅读
The structure, microstructure, thermal stability and hydriding characteristics of amorphous La_(0.95)-Mg_(2.05)Ni_9 have been investigated with differential thermal analysis, X-ray diffraction, scanning electron microscopy and battery test. It is found that the increase in mechanical alloying time leads to enhancement in thermal stabilities of amorphous La_(0.95)Mg_(2.05)Ni_9 alloy. The amorphous alloy has good charge/discharge ability at room temperature(430 mA·h·g~(-1)), but the discharge capacity decreases seriously during cycling tests due to the crystallization of amorphous and oxidization of magnesium on the particle surface in alkaline aqueous solution.
The structure, microstructure, thermal stability and hydriding characteristics of amorphous La_ (0.95) -Mg_ (2.05) Ni_9 have been investigated with differential thermal analysis, X-ray diffraction, scanning electron microscopy and battery test. It is found that the increase in mechanical alloying time leads to enhancement in thermal stabilities of amorphous La_ (0.95) Mg_ (2.05) Ni_9 alloy. The amorphous alloy has good charge / discharge ability at room temperature (430 mA · h · g -1) capacity decreased seriously during cycling tests due to the crystallization of amorphous and oxidization of magnesium on the particle surface in alkaline aqueous solution.