晶相组成对硅质耐火材料抗碱侵蚀性能的影响

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (3): 1130-1136.

所属专题：耐火材料

• 耐火材料 • 上一篇

晶相组成对硅质耐火材料抗碱侵蚀性能的影响

王含^1,2, 沈瑞麟¹, 王鸿妹³, 汪庆卫^1,2

1.东华大学纤维材料改性国家重点实验室,上海 201620;
2.东华大学先进玻璃制造技术教育部工程研究中心,上海 201620;
3.洛阳迈乐耐火材料有限公司,洛阳 471000

收稿日期:2022-11-14 修订日期:2022-12-21 出版日期:2023-03-15 发布日期:2023-03-31
通信作者: 汪庆卫,博士,教授。E-mail:wqwq888@dhu.edu.cn
作者简介:王含(1999—),男,硕士研究生。主要从事纤维增强二氧化硅低介电涂层的研究。E-mail:wyc990813@163.com
基金资助:
国家重点研发计划(2021YFB3701600);国家自然科学基金面上项目(51873032);中央高校基础研究项目(2232022G-07)

Effect of Crystal Phase Composition on Alkali Corrosion Resistance of Silica Refractories

WANG Han^1,2, SHEN Ruilin¹, WANG Hongmei³, WANG Qingwei^1,2

1. State Key Laboratory of Fiber Material Modification, Donghua University, Shanghai 201620, China;
2. Engineering Research Center ofAdvanced Glass Manufacturing Technology, Ministry of Education, Donghua University, Shanghai 201620, China;
3. Luoyang Maile Refractory Co., Ltd., Luoyang 471000, China

Received:2022-11-14 Revised:2022-12-21 Online:2023-03-15 Published:2023-03-31

摘要/Abstract

摘要： 硅砖属于酸性耐火材料,具有高荷重软化温度和抗酸性渣侵蚀能力,但抗碱侵蚀能力很差,因此研究不同硅砖的抗碱侵蚀能力对硅质耐火材料的应用有重要意义。本文选用了四种硅砖(JG-95^#硅砖、BG-96A^#硅砖、ZES-99^#硅砖和DES-99^#硅砖),采用化学分析、显微结构分析、X射线粉末衍射分析和显气孔体密度分析等方法对比分析了四种不同硅砖晶相组成和晶相转变对抗碱侵蚀能力的影响,结果表明,ZES-99^#硅砖和DES-99^#硅砖的抗碱侵蚀能力明显优于JG-95^#硅砖和BG-96A^#硅砖,即二氧化硅含量较高的硅砖抗碱侵蚀能力更强,并且以方石英、鳞石英和熔融石英为主晶相的硅质耐火材料都具有良好的抗碱侵蚀能力。

关键词: 硅质耐火材料, 抗碱侵蚀性能, 晶相组成, 晶相转变, 显微结构

Abstract: Silicon brick is an acid refractory with high load softening temperature and acid slag corrosion resistance, but it has poor alkali corrosion resistance. Therefore, it is of great significance to study the alkali corrosion resistance of different silica bricks for the application of silica refractories. Four kinds of silica bricks (JG-95^# silica brick, BG-96A^# silica brick, ZES-99^# silica brick and DES-99^# silica brick) were selected to compare and analyze the influences of the crystal phase composition and crystalline phase transition on the alkali corrosion resistance of four different silica bricks by chemical analysis, microscopic structure analysis, X-ray powder diffraction analysis and apparent porosity density analysis. The results show that the alkali corrosion resistance of ZES-99^# silica brick and DES-99^# silica brick is better than that of JG-95^# silica brick and BG-96A^# silica brick. Silica bricks with higher silica content have stronger alkali corrosion resistance, and silica refractories with cristobalite, tridymite and fused quartz as main crystal phases have good alkali corrosion resistance.

Key words: silica refractory, alkali corrosion resistance, crystal phase composition, crystalline phase transition, microscopic structure

中图分类号:

TQ175.1⁺2

王含, 沈瑞麟, 王鸿妹, 汪庆卫. 晶相组成对硅质耐火材料抗碱侵蚀性能的影响[J]. 硅酸盐通报, 2023, 42(3): 1130-1136.

WANG Han, SHEN Ruilin, WANG Hongmei, WANG Qingwei. Effect of Crystal Phase Composition on Alkali Corrosion Resistance of Silica Refractories[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(3): 1130-1136.

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晶相组成对硅质耐火材料抗碱侵蚀性能的影响

Effect of Crystal Phase Composition on Alkali Corrosion Resistance of Silica Refractories

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