Effect of Preparation Methods on Hydriding Properties of La1.5Mg17 Ni0.5 Composite Materials  

作　　者：Jiang Lijun Xiao Fang Li Qian Lin Qin Zhan Feng Chou Kouchih Lei Tingquan 

机构地区：[1]General Research Institute for Non-Ferrous Metal,Beijing 100088,China [2]Department of Material Science and Engineering,Harbin Institute of Technology,Harbin 150001,China General Research Institute for Non-Ferrous Metal,Beijing 100088,China Department of Physical Chemistry,University of Science and Technology Beijing,Beijing 100083,China Department of Physical Chemistry,University of Science and Technology Beijing,Beijing 100083,China General Research Institute for Non-Ferrous Metal,Beijing 100088,China Department of Physical Chemistry,University of Science and Technology Beijing,Beijing 100083,China Department of Material Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

出　　处：《Journal of Rare Earths》2004年第z2期110-113,共4页稀土学报（英文版）

摘　　要：La1.5Mg17Ni0.5 hydrogen storage materials were prepared by hydriding combustion synthesis (HCS) and mechanical alloying (MA) method respectively. The experimental results show that the hydrogen absorption properties of La1.5Mg17Nio.5 prepared by MA are better than that by HCS. La1.5Mg17Nio.5 prepared by MA can absorb 6.73 mass% hydrogen at 523 K within 1 min, and 4.92 mass% hydrogen at 423 K. The improvement of hydriding properties of La1.5Mg17Ni0.5alloy prepared by MA can be ascribed to the formation of nano-crystalline and defects during the mechanical alloying.

关 键 词：HYDRIDING combustion synthesis mechanical ALLOYING hydrogen storage material HYDRIDING PROPERTY 

分 类 号：TG139.7[一般工业技术—材料科学与工程]