本文报道MoO_2部分非化学计量区域研究结果,并综合Mo-MoO_2平衡及氧在金属Mo中溶解度数据,绘制750,850及950℃下非化学计量Mo与MoO_2平衡真实氧位线;同时对MoO_2生成自由焓进行非化学计量的Smiltens修正.为解决Smiltens修正积分应用于纯金属边时的困难,积分中引入了Sieverts常数.计算表明,Smiltens修正量对MoO_2生成自由焓值无明显影响.
Study was made of determination of the deviation from stoichi-ometry on oxygen-deficient MoO_(2-x). The diagram showing true relationships be-tween chemical potential of oxygen and compositions for the non-stoichiometricMo and MoO_2 equilibrium at 750, 850 and 950℃ is given. And the correction val-ues for the standard free energy of formation of MoO_2 are calculated by Smiltens'integration. In order to overcome the difficulty of the integration used for puremetal side, the Sieverts' law constant is introduced. It is shown that the correctionvalues effect little change in the standard free energy of formation of MoO_2.
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