| 高铁赤泥制备CaO-SiO2-Fe2O3-Al2O3系微晶玻璃 |
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| 引用本文： | 屈振民,张帅,张延玲.高铁赤泥制备CaO-SiO2-Fe2O3-Al2O3系微晶玻璃[J].有色金属科学与工程,2019,10(4):34. |
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| 作者姓名： | 屈振民 张帅 张延玲 |
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| 作者单位： | 北京科技大学钢铁冶金新技术国家重点实验室,北京,100083;北京科技大学钢铁冶金新技术国家重点实验室,北京,100083;北京科技大学钢铁冶金新技术国家重点实验室,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目51674022 |
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| 摘 要： | 以高铁赤泥、SiO2等成分为原料，通过熔融-热处理法制备CaO-SiO2-Fe2O3-Al2O3体系的赤泥基微晶玻璃.表征母玻璃和热处理后的微晶玻璃的物相组成、微观形貌，计算结晶度以及测试抗弯强度性能等.通过Rietveld全谱拟合方法对各组微晶玻璃的结晶度进行计算，对比分析发现，热处理后微晶玻璃的结晶度增加，随着SiO2的添加会使得微晶玻璃的结晶度降低.对微晶玻璃进行抗弯强度测试，抗弯强度随着SiO2/赤泥的增加而增大.
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| 关 键 词： | 微晶玻璃 赤泥 结晶度 |
| 收稿时间： | 2019-04-15 |
Preparation of CaO-SiO2-Fe2O3-Al2O3 system glass-ceramics from red mud with high iron |
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| Affiliation: | State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | Red mud-based glass-ceramics of CaO-SiO2-FeO3-Al2O3 system were prepared by melting-heat treatment from high-iron red mud with some SiO2. The phase composition, morphology, crystallinity and bending strength of parent-glass and heat treated glass-ceramics were characterized. The crystallinity of each group of glass-ceramics was calculated by Rietveld full-spectrum fitting method. It is found that the crystallinity of glass-ceramics increases after heat treatment, and decreases with the addition of SiO2. The flexural strength of glass-ceramics increases with the increase of SiO2/red mud. |
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