| 由熔融高炉渣制备微晶玻璃 |
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| 引用本文： | 许莹,张玉柱,卢翔.由熔融高炉渣制备微晶玻璃[J].北京科技大学学报,2015(5):93-97. |
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| 作者姓名： | 许莹 张玉柱 卢翔 |
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| 作者单位： | 1. 华北理工大学材料科学与工程学院,唐山,063009;2. 华北理工大学冶金与能源学院,唐山,063009 |
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| 基金项目： | 河北省自然科学基金资助项目 |
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| 摘 要： | 采用熔融法,由熔融高炉渣制备性能稳定的基础玻璃.通过对基础玻璃的差热分析确定微晶玻璃的热处理工艺制度.结合X射线衍射分析、扫描式电子显微镜观察等现代研究方法,确定了微晶玻璃热处理制度的最佳工艺参数,并研究了微晶玻璃的晶体生长方式.微晶玻璃的热处理最佳工艺参数为：核化温度850℃,保温1.5 h；晶化温度935℃,保温1 h.玻璃首先从表面开始析晶,然后逐步向内部生长.实验所得微晶玻璃的力学性能,如抗折强度、耐酸碱性和硬度,均优于天然大理石.
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| 关 键 词： | 高炉渣 微晶玻璃 热处理 晶体生长 力学性能 废弃物利用 |
Preparation of glass-ceramics from molten blast furnace slag |
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| XU Ying,ZHANG Yu-zhu,LU Xiang.Preparation of glass-ceramics from molten blast furnace slag[J].Journal of University of Science and Technology Beijing,2015(5):93-97. |
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| Authors: | XU Ying ZHANG Yu-zhu LU Xiang |
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| Abstract: | Basic glass with stable properties was prepared from molten blast furnace slag by using the melting method. The heat treatment regime of glass-ceramics was determined by differential thermal analysis of the basic glass. Optimum heat treatment parame-ters were selected and the crystal growth pattern of glass-ceramics was analyzed by X-ray diffraction and scanning electron microscopy. The results show that the optimum heat treatment parameters of glass-ceramics are the nucleation temperature of 850℃for 1. 5 h and the crystallization temperature of 935℃ for 1 h. The crystallization grows from the surface to interior gradually. The mechanical properties of the prepared glass-ceramics, such as bending strength, acid and alkali resistance, and hardness, are better than those of ordinary marble. |
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| Keywords: | blast furnace slag glass-ceramics heat treatment crystal growth mechanical properties waste utilization |
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