Oxygen Potentials and Oxygen-potential Diagrams for Buffer Gas System at Normal Pressure
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG1992年第1期
论文作者：方正 张全茹 张平民 陈新民
文章页码：35 - 43
摘 要：<正> The principles of chemical equilibrium were used to derive a new set of formulae representing the oxygenpotentials for five buffer gas mixtures at normal pressure.Various sorts of classical formulae for them are on-ly a particular representation under ignoring the effects of oxygen,thereby being unavailable for accurate cal-culation of oxygen potentials.In this paper,the oxygen potentials set by CO2-H2 gas mixtures and the mis-takes and errors of the classical expressions for them were discussed emphatically.The deviation in partialpressures of oxygen in some of previous experiments under the oxygen potentials controlled by CO2-H2 gasmixtures was explained quantitatively.The oxygen-potential diagrams predicting the equilibrated gas com-positions from the initial conditions have been also given.
方正，张全茹，张平民，陈新民
摘 要：<正> The principles of chemical equilibrium were used to derive a new set of formulae representing the oxygenpotentials for five buffer gas mixtures at normal pressure.Various sorts of classical formulae for them are on-ly a particular representation under ignoring the effects of oxygen,thereby being unavailable for accurate cal-culation of oxygen potentials.In this paper,the oxygen potentials set by CO2-H2 gas mixtures and the mis-takes and errors of the classical expressions for them were discussed emphatically.The deviation in partialpressures of oxygen in some of previous experiments under the oxygen potentials controlled by CO2-H2 gasmixtures was explained quantitatively.The oxygen-potential diagrams predicting the equilibrated gas com-positions from the initial conditions have been also given.
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