Time-resolved high-temperature X-ray diffraction for studying the kinetics of corrosion of high-alumina refractory by molten oxides

被引：18
|
作者：
de Bilbao, Emmanuel [1 ]
Dombrowski, Mathieu [1 ,3 ]
Pilliere, Henry [2 ]
Poirier, Jacques [1 ]
机构：
[1] Univ Orleans, CNRS, CEMHTI UPR3079, Orleans, France
[2] ThermoFisher Sci, Artenay, France
[3] Calderys, Sezanne, France
来源：
CORROSION SCIENCE | 2018年 / 139卷
关键词：
POSITION-SENSITIVE DETECTOR; QUANTITATIVE PHASE-ANALYSIS; POWDER DIFFRACTION; IN-SITU; CERAMIC SYSTEMS; CAO-SIO2-AL2O3; SLAGS; DISSOLUTION; CAO-AL2O3; RIETVELD; SILICATE;
D O I：
10.1016/j.corsci.2018.05.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The aim of this work is to quantify the corrosion kinetics of high-alumina refractories by a binary slag (Al2O3 50 wt.% CaO 50 wt.%) and a ternary slag (Al2O3 45 wt.% CaO 45 wt.% SiO2 10 wt.%). The main objectives are i) to determine corrosion kinetics based on time-resolved X-ray diffraction at high temperature (1600 degrees C) combined with Rietveld quantification and (ii) to propose a reaction model based on the dissolution/precipitation/diffusion mechanisms. The results show that the corrosion process is very fast and involves an indirect dissolution mechanism with the formation of Al2O3/CA(6)/CA(2)/slag interfaces.
引用
收藏
页码：346 / 354
页数：9
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