Surface Degradation Behaviour of MgO-Al2O3-TiO2-SiO2 based Glass-Ceramics

被引:4
作者
Ghosh, S. [1 ]
Datta, S. [1 ]
机构
[1] CSIR, Cent Glass & Ceram Res Inst, Kolkata 700032, India
关键词
Glass ceramics; Corrosion; X-ray methods; Electron microscopy; CORROSION MECHANISMS; AQUEOUS-SOLUTIONS; DURABILITY; SILICA; ACIDS;
D O I
10.1080/0371750X.2014.893205
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In the present study, the surface degradation behaviour of the MgO-Al2O3-TiO2-SiO2 based glass-ceramic material was investigated. The phase composition of the glass-ceramics was identified by X-ray diffraction analysis. The microstructure of the same glass-ceramics was observed by scanning electron microscopy. Corrosion study showed that the glass in the MgO-Al2O3-TiO2-SiO2 system had better resistance to degradation in boiling water medium than that observed in boiling HCl and HNO3 solutions whereas the glass-ceramics in the same system was more resistant to these different corrosive media than the original glass. Glass-ceramics also exhibited higher degradation resistance in boiling water compared to that noted in boiling HNO3 and HCl solutions.
引用
收藏
页码:216 / 220
页数:5
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