工程科学学报2016，Vol.38Issue(4)：476-483,8.DOI:10.13374/j.issn2095-9389.2016.04.005
CaF2--SiO2型硅传感器辅助电极的制备及其定硅性能
Preparation and property of silicon sensor auxiliary electrodes based on the CaF2--SiO2 system
摘要
Abstract
A silicon sensor auxiliary electrode was successfully synthesized by evenly coating CaF2 +SiO2 powder on the surface of ZrO2 ( MgO) solid electrolyte and roasting at 1400℃ for 30 min in high purity Ar atmosphere. The effects of preparing conditions on the composition, crystal phase and morphology of the formed auxiliary electrode membrane after calcination were systematically investi-gated by X-ray diffraction, scanning electron microscopy and energy dispersive spectrometry. It is shown that SiO2 solid particles, CaO·MgO·2SiO2 solid solution and ZrSiO4 are the main components of the formed auxiliary electrode layer and no CaF2 exists in the layer. In addition, the influences of phase transformation on the film adhesive property and silicon sensor performance were also dis-cussed. The as-prepared silicon sensor which is used to detect silicon content in molten iron at 1450℃ shows a better performance. When the silicon content ranges from 0. 5% to 1. 5% in liquid iron, the testing result based on this silicon sensor with a response time of 10 s and a steady time more than 20 s agrees well with the value based on the chemical analysis method.关键词
硅传感器/电极/制备方法/硅含量/氟化钙/二氧化硅Key words
silicon sensors/electrodes/preparation methods/silicon content/calcium fluoride/silicon dioxide分类
信息技术与安全科学引用本文复制引用
鞠靓辰,李杨,满文宽,郭敏,张梅..CaF2--SiO2型硅传感器辅助电极的制备及其定硅性能[J].工程科学学报,2016,38(4):476-483,8.基金项目
国家科技支撑计划资助项目(2013BAC14B07) （2013BAC14B07）
