稀土元素对铝导体导电性能的影响

The Influence of RE on the Electric Properties of Aluminum Conductors

研究了稀土元素对铝导体导电性能的影响。结果表明:不同纯度的工业纯铝,添加稀土元素对其导电性能的影响差别很大。混合稀土对杂质含量较高的纯铝的导电性有改善,对杂质含量低的纯铝的导电性基本不起作用。单独加稀土铈或镧对杂质含量高的纯铝的导电性在一定的添加范围内有一定的改善,而对杂质含量较低的纯铝的导电性略有改善。对同一纯度的铝而言,单一稀土对其导电性的影响优于混合稀土。

The influences of rare earth elements on the electric properties of aluminum conductors were studied. Different purity of industrial aluminum and different RE elements had much different effects on the electric properties of aluminum conductors. Mixed RE elements could improve the conductivity of pure aluminum with relatively high content of impurities, but had little effect on that with relatively low impurity content. Pure RE （cerium, lanthanum） have certain improvement effect on the conductivity of pure aluminum with relatively high impurity contents in some degree of addition, but had a slight effect on that with relatively low impurity content. As to aluminum with the same purity, pure RE elements have better effects than mixed ones.