电化学电池测量碳饱和铁液中的硅含量  

DETERMINATION OF SILICON CONTENT IN CABON-SATURATED MELTEN IRON WITH ELECTROCHEMICAL CELL

作　　者：贾成科[1] 

机构地区：[1]北京矿冶研究总院磁性材料研究所

出　　处：《矿冶》1996年第2期72-77,共6页Mining And Metallurgy

摘　　要：实验室条件下，用ＭｇＯ部分稳定的ＺｒＯ_２作固体电解质，配以ＳｉＯ_２，基辅助电极研制成电化学硅测头，对碳饱和的铁液进行了电动势的测量。测量结果表明：硅测头进入铁液５～１０ｓ后可以获得稳定的电动势，在１７２３～１８２３Ｋ范围内、测量电动势值与热力学计算电动势值符合较好，电动势测量法和化学分析法两种方法所得硅含量值仅相差±０．０３％。该电化学硅测头不用取样，应答时间短，适合现场测量。Laboratory EMFs measurement was conducted in molten Fe + C(sat)+Si system using ZrO2(MgO) solid electrolyte equipped with a new auxiliary electrode SiO2.The results showed that a stable EMF measurement was obtained after immersio of the developed silicon probe in molten Fe within 5 to 10s. In the range of 1723 and 1823K, the measured EMFs value corresponds with thermo-dynamics calculation value. The difference of measured silicon content with the EMF method and chemical analysis is only ±0.03 %. They are in good agreement. Due to the rapid response and accuracy of the silicon sensor, it is applicable in site

关 键 词：电化学 电化学硅测头 硅含量 碳饱和 铁液 

分 类 号：TF513[冶金工程—钢铁冶金]