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.

• 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。