耐磨铝硅酸盐玻璃陶瓷晶化行为研究

Study on the crystallization action of the glass-ceramic with good abrasion resistance

在已有工作的基础上,采用DTA、XRD、SEM等现代测试分析手段,探讨了耐磨铝硅酸盐玻璃陶瓷的晶化行为,并对不同晶核剂的晶化特性进行了分析,结果表明,真正起晶化作用的是F-离子,而Cr3+离子和Zr4+离子的作用是促进分相,辅助析晶.所制得的玻璃陶瓷主晶相为透辉石,次晶相为硅灰石,两者形成相互交错的显微结构,此材料具有优良的力学性能和耐磨性.图6,表1,参8,

On the basis of the work done, this paper analyses the crystallization action of glass-ceramic with good abrasion resistance with the aid of differential analysis, x-ray diffraction and scanning electron microstructure, and crystallization character of different nucleation agents were analysed. The results show that F- ion can effectively prompt full crystallization and Cr3+ ion can advance phase separation and assist crystallization.The main crystalline are diopside(CaMg(SiO3)2) and wollastonize(βCaSiO3), the both made interlaced microstructure. the kind of materials possess homogeneous and dense microstructure, good mechanical property and abrasion resistance.6figs.,1tab.,8refs.