Abstract CaO–MgO–Al2O3–SiO2 glass-ceramics with diopside as the main crystalline phase were prepared by melting blast furnace slag obtained from Baotou Iron and Steel Company. The effect of heat treatment on the crystallization behavior of glass-ceramics, containing a large proportion of melted blast furnace slag, was studied by means of differential thermal analysis and scanning electron microscopy. The optimum heat-treatment regime was obtained by orthogonal experimental results for glass-ceramics in which blast furnace slag comprised 70% of the composition and 1% Cr2O3 and 4% TiO2 were used as nucleating agents. The nucleation temperature was 750°C for 2.5 h and the crystallization temperature was 930°C for 1 h. Under this regime, the performance of the glass-ceramic was better than that of other groups in the orthogonal experiment.

中文翻译：

---

高炉渣微晶玻璃热处理工艺优化

摘要 采用包钢高炉渣熔融制备透辉石为主晶相CaO-MgO-Al2O3-SiO2微晶玻璃。通过差热分析和扫描电子显微镜研究了热处理对含有大量高炉熔渣的微晶玻璃结晶行为的影响。最佳热处理方案是通过玻璃陶瓷的正交实验结果获得的，其中高炉矿渣包含 70% 的成分，1% Cr2O3 和 4% TiO2 用作成核剂。成核温度为 750°C，持续 2.5 小时，结晶温度为 930°C，持续 1 小时。在这种情况下，微晶玻璃的性能优于正交实验中的其他组。