自从Chupka及Inghram~([1])于1955年成功地研究碳的蒸汽物种及升华热之后,高温质谱仪日益广泛地应用于金属及合金物理化学的研究。日本于六十年代引进此方法,进行钢铁冶金物理化学的研究。克努生室质谱仪最适宜用于鉴别能汽化的物种,测定蒸汽压及蒸发热。关于高温质谱仪的综合评述,参阅文献~([2～6]);本文介绍本国在这方面的成就。 1.克努生室质谱仪工作原理 Since Chupka and Inghram ~ ([1]) successfully studied carbon vapor species and sublimation heat in 1955, high temperature mass spectrometers have been increasingly used for the study of the physical and chemical properties of metals and alloys. Japan introduced this method in the 1960s and conducted research on physical and chemical properties of ferrous metallurgy. The Knudson chamber mass spectrometer is the most suitable for identifying vaporizable species and measuring vapor pressure and heat of vaporization. For a comprehensive review of high temperature mass spectrometry, see References ~ ([2 ~ 6]); this article describes the country’s achievements in this area. 1. Knudson room mass spectrometer works