球磨对Zr-Cu-Al-Ni金属玻璃粉末结构与吸放氢性能的影响（英文）

Influence of Ball-Milling on the Structure and Hydrogen Absorption-desorption Behavior of Zr-Cu-Al-Ni Metallic Glass Powders

研究了球磨对气雾化法所制备的Zr_(50.7)Cu_(28)Al_(12.3)Ni_9金属玻璃粉末结构与吸放氢性能的影响。气雾化的金属玻璃粉末在经过80 h的球磨后,仍呈现为非晶态。球磨对金属玻璃粉末吸放氢性能的影响在一台全自动Sieverts装置上进行了测量。球磨之后,金属玻璃粉末的吸氢性能获得提升,粉末的饱和吸氢质量分数从雾化态的0.96%(H/M≈0.7)提升至了球磨后的2.66%(H/M≈1.9)。然而,由于吸氢后金属玻璃粉末内部生成稳定的氢化物相,使得球磨后的金属玻璃粉末的放氢性能未能获得提升。

The influence of ball-milling on the structure and hydrogen absorption-desorption behavior of Zr_（50.7）Cu_（28）Al_（12.3）Ni_9 metallic glass powders produced by gas atomization were studied. The as-atomized metallic glass powders were ball-milled for 80 h. It is found that the powders remain amorphous state after the ball-milling process. The effects of ball-milling on the hydrogen absorption-desorption behavior of the metallic glass powders were measured with an automatic Sieverts apparatus. After the ball-milling, the hydrogen absorption behavior of the metallic glass powders is improved. In addition, the hydrogen absorption capacity of the ball-milled metallic glass powders increases to 2.66 wt%（H/M≈1.9） from 0.96 wt%（H/M≈0.7） of the as-atomized metallic glass powders. However, the hydrogen desorption behavior of the ball-milled metallic glass powders is still poor due to the formation of very stable hydride.