球磨工艺对MgNi非晶相形成效率的影响  

The Effect of Ball-milling Parameters on the Efficiency of Formation of MgNi Amorphous

作　　者：成钢[1] 顾正飞[1] 周怀营[1] 王仲民[1] 成均[1] 

机构地区：[1]桂林电子工业学院信息材料工程系,广西桂林541004

出　　处：《电工材料》2005年第2期29-32,共4页Electrical Engineering Materials

摘　　要：用机械合金化和X射线衍射研究了MgNi非晶相的形成效率与机械球磨工艺参数的依赖关系。结果表明,球磨转速对MgNi非晶相的形成效率具有十分重要的影响。室温下,转速为400r/min,球料比为40∶1时,形成单一非晶相的球磨时间约为30h。随着球料比的减小,非晶相的形成效率单调下降,而球径配比的适度变化对非晶相的形成影响不大。The dependence of the efficiency of formation of MgNi amorphous phase on ball milling parameters was investigated by mechanical alloying and x-ray diffraction.The re-sults show that the regular velocity of ball-milling has decisive influence on the efficient formation of MgNi amorphous phase.It was found that the efficiency of formation of a-MgNi phase monotonically increases with increasing the mass ratio of steel balls to ele-mental powder(R BP )from10∶1～40∶1,only about30hours of milling needed for syn-thesis of a-MgNi single phase with R BP =40∶1and with rotational speed of400rpm at ambient temperature.However,the proper change of steel-ball in diameter has no impor-tant impact on the efficiency of formation.

关 键 词：MgNi非晶储氢合金 机械合金化 球磨工艺 

分 类 号：TM201.4[一般工业技术—材料科学与工程]