作者：ZENG Fanbo,HUANG Ao,WANG Xinlian,LI Shenghao,ZHANG Shuzhe,QU Pengcheng,GU Huazhi

作者单位：The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology

刊名：China’s Refractories

ISSN：1004-4493

出版年：2023-03-15

卷：32

期：1

起页：30-34

止页：

分类号：TQ175.7

语种：英文

关键词：

内容简介

The dissolution of alumina-based refractory ceramics in CaO-Al2O3-SiO2 slag melts was performed based on the in-situ observation system of an ultra-high-temperature laser confocal microscope,and the effect of the CaO/SiO2 slag mass ratio(C/S ratio) on the dissolution rate of alumina-based refractory ceramics was investigated.The results indicate that the dissolution rate increases with an increase of the C/S ratio and is mainly controlled by diffusion.During the early stage of dissolution,for all C/S ratios,the dissolution process conforms to the classical invariant interface approximation model.During the later stage of dissolution,when the C/S ratio is ≥6,the dissolution process is significantly different from the model above because of the formation of a thick interfacial layer,which can be explained by dissolution kinetics.