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向工业纯铜中加入不同含量的锂能提高其３００ ℃以下的低温抗氧化性， 锂的最佳含量为０ ．０２８８ ％ ， 这是由于在铜的表面生成一种致密度较高的ＬｉＣｕＯ 新相， 阻碍或减缓空气中的氧在铜基体中的扩散所致； 温度较高时其抗氧化性降低， 锂含量越高抗氧化性能越差， 锂易于在氧化膜的缺陷处富集， 严重时会在氧化膜中及铜基体中形成大空洞或连成网状， 从而降低其保护性
Addition of different contents of lithium to industrial pure copper can improve the low temperature oxidation resistance below 300 ℃, the optimum content of lithium is zero. 0288%, which is due to the surface of the copper generated a higher density of LiCuO new phase, obstruct or slow air diffusion of oxygen in the copper matrix due to its lower temperature oxidation resistance, lithium content The poorer the anti-oxidation property, the more lithium is likely to be enriched in the defects of the oxide film, and in severe cases, a large cavity or even a network is formed in the oxide film and the copper matrix, thereby reducing its protective property