Al-Mg-RE三元合金的制备  

Preparation of Al-Mg-RE Alloy

作　　者：杨少华[1] 阚洪敏[1] 姜成伟[1] 邱竹贤[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《稀土》2007年第4期30-33,共4页Chinese Rare Earths

基　　金：国家自然科学基金重点项目资助(50334030)

摘　　要：以MgO为原料,电解质为RECl3-KCl-MgCl2,熔盐电解法制取Al-Mg-RE三元合金.通过实验证明,稀土可以由铝的直接还原得到,而镁是由电解还原得到.可制得RE含量为0.8%～1.2%,Mg含量为1%～4%的三元合金,电流效率最高可达到81.3%.电解过程基本上不产生Cl2.In this paper,MgO as raw material, RECl3-KCl-MgCl2 as electrolyte, Al-MMg-RE alloy is produced by molten salt electrolysis. The study can prove that RE can be attained by directly reduction of Al, while Mg can be produced by electrolysis. The content of RE in alloy is about 0. 8%-1.2%, and content of Mg in alloy is 1%-4%, the best current efficieney can reach 81.3%. During the electrolysis, Cl2 can hardly be produced.

关 键 词：氧化镁 合金 稀土 熔盐 

分 类 号：TG146.2[一般工业技术—材料科学与工程] O614.33[金属学及工艺—金属材料]