金属钨及其合金中微量氧的分析

Determination of Microamounts of Oxygen in Tungsten and its Alloys

探讨了检测系统、坩埚、Ｎｉ囊、熔池空白和不同分析方法对分析金属钨及其合金中微量氧的影响。基于镍囊助熔法和熔池法相结合技术，建立了测定金属钨及其合金中微量氧的新方法，本方法已用于金属钨、钨－铝合金、钽－钨合金等材料中质量分数为＜１．０×１０－４％的氧的测定。

A new method for the determination of trace oxygen in tungsten and its alloys has been developed.It is based on the method of Ni copsoles flux cell.The infiuences of systems,crucible.Ni copsules.flux and analytical method on the determination of trace oxygen have been in restigated.The limit of detection is 1.0×10 -4 %,the results obtained are satisfactory.