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用ZrO2(MgO)固体电解质,以CasiO3+Cr2O3作为辅助电极,组成铬传感探头:Mo|Cr,Cr2O3|ZrO2(MgO)|CaSiO3,Cr2O3|[Cr]Fe|Mo-ZrO2于1753K测定了碳饱和铁液中Cr的活度该探头响应快,约2—3s即可得到稳定的电动势值,测定误差为主±1~2mVCr的活度与Cr的浓度之间符合理论关系
Cr2O3 | [Cr] Fe | Mo-ZrO2 was measured at 1753 K by using ZrO2 (MgO) solid electrolyte and CasiO3 + Cr2O3 as auxiliary electrodes. The activity of Cr in liquid The probe responds fast, about 2-3s to get the stable electromotive force value, the main measurement error is ± 1 ~ 2mVCr activity and Cr concentration in line with the theoretical relationship