稀土元素合金相关论文
作者研制了一种水冷紫铜坩埚,供熔炼过渡元素合金,稀土元素合金之用,这种坩埚具有特殊的结构,在采用高频感应加热时,可在熔料及坩......
Diameter-Controlled Growth of Carbon Nanotubes Through Pyrolysis of Acetylene Using Rare Earth Alloy
High-purity carbon nanotubes(CNTs)were synthesized in hydrogen ambience by CVD method by using rare earth alloy MlM5-1.3......
1 Introduction Beforemeltedaluminumalloyscanbecast,theymustberefinedtogetridofinclusions ,oxidesandsolvedhy drogen .Thewidelyusedrefiningmethodsrelyonad sorptiontechniques,suchasthetreatmentwithC2 Cl6 ,CCl4 ,ZnCl2 andN2 orArandsoon .Thegasbubblestookshape......
在假定原子面为球形的情况下,采用切割投影矩阵得出准晶Cd—Yb三维空间的原子团簇,并与其近似相进行对比。结果表明,除了第一层(无序)外......