球磨参数对MgNi储氢合金电化学性能的影响

Effect of the Milling Parameters on the Electrochemistry Property of Amorphous MgNi Hydrogen Storage Alloy

摘要:

采用机械合金化法制备了MgNi非晶，并对不同制备工艺下的MgNi储氢合金的电化学性能进行了测试。对球磨参数、合金微观结构和合金电化学性能之间关系的分析结果表明，球磨过程中的转速、球料比R和球磨时间3个参数对合金电化学的影响是通过对合金微观结构的控制来实现的。

关键词:储氢合金 机械合金化 MgNi非晶 球料比R 电化学

Abstract:

Amorphous MgNi hydrogen storage alloy was synthesized by mechanically alloying (MA). The electrochemistry property of the alloy prepared in different parameters was tested. The relationship between the mechanically alloying parameters, the microstructure of the alloy and the electrochemistry property was analyzed. The results show that the eclectrochemistry property of the alloy has a strong relationship with milling speed, ball/powder weight ration(R) and milling time.

Key words:hydrogen storage alloy,mechanically alloying,amorphous mgni,ball/powder weight ration,electrochemistry property