氧势 金属氧化反应达到平衡时的氧分压pO2 称为化合物MexOy的分解压,此值越低表示金属氧化物MexOy越稳定,它与氧化反应的ΔG°的关系是 ΔG°=R T ln pO2 式中R为气体常数,T为绝对温度当气相中氧的分压为pO2时其化学势是 μO2 =+R T ln pO2 式中是氧分压为1大气压时的标准化学势μO2与之差μO2-=R TlnpO2=ΔG°代表此平衡体系中氧的相对化学势常简称为氧势(oxygen potential)
氧势(oxygen potential):金属氧化物分解时 的氧化能力,其数值等于氧化物的分解压。氧势越 低,表示金属氧化物越稳定,氧势越高,金属氧化 物越不稳定。
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氧化还原电势 redox potential ; oxidation reduction potential ; redox potential,redox potential
氧化电势 [物化] oxidation potential ; oxidizing potential
氧化势 oxidation potential
临界氧势 critical oxygen potential
氧势梯度熔炼法 Oxy-potential grads smelting
氧化还原势 oxidation-reduction potential ; redox potential ; Eh ; reduction Potential
臭氧消耗潜势 ozone depletion potential ; ODP
标准氧化还原电势 standard redox potential
还叙述了氧探头氧势控制仪的优点。
This paper also describes the advantages of the OCC oxygen potential control instrument applications.
结果表明包壳管腐蚀特征与氧势密切相关。
It is shown that the corrosion character of cladding tube strongly depends on the oxygen POtential.
温度、氧势、焦炭反应性及碱金属对焦炭气化反应有重要影响。
The main cause of coke broken in BF is the consumption of chemical reaction, Temperature, oxygen potential, reactivity of coke and alkali metal have important influences on coke gasification.
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