| CaO/MgO比对钙镁硅系陶瓷纤维晶化行为的影响 |
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| 引用本文： | 刘浩,王玺堂,张保国,王周福. CaO/MgO比对钙镁硅系陶瓷纤维晶化行为的影响[J]. 稀有金属材料与工程, 2009, 38(Z2) |
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| 作者姓名： | 刘浩 王玺堂 张保国 王周福 |
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| 作者单位： | 武汉科技大学,耐火材料与高温陶瓷湖北省重点实验室,湖北,武汉,430081 |
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| 基金项目： | 国家自然科学基金资助项目，湖北省教育厅优秀中青年人才项目 |
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| 摘 要： | 采用DTA、XRD等分析测试方法,探讨了钙镁硅系陶瓷纤维组成中CaO/MgO比值变化对晶化行为的影响.实验结果表明,随着钙镁比值的增大,纤维的玻璃态网络结构趋于致密,晶化温度逐渐提高;经过热处理后,钙镁比值较低(2:1)的样品中析出的主晶相为透辉石,钙镁比值较高(3:1～5:1)的样品中析出的主晶相为副硅灰石或硅灰石;相同热处理条件下,增大钙镁比值有利于主晶相的长大.
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| 关 键 词： | 陶瓷纤维 CaO/MgO比 晶化 |
Effects of CaO/MgO Ratios on Crystallization Behavior of CaO-MgO-SiO_2 System Ceramic Fibers |
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| Liu Hao,Wang Xitang,Zhang Baoguo,Wang Zhoufu. Effects of CaO/MgO Ratios on Crystallization Behavior of CaO-MgO-SiO_2 System Ceramic Fibers[J]. Rare Metal Materials and Engineering, 2009, 38(Z2) |
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| Authors: | Liu Hao Wang Xitang Zhang Baoguo Wang Zhoufu |
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| Affiliation: | Liu Hao,Wang Xitang,Zhang Baoguo,Wang Zhoufu (Hubei Refractory , High-Temperature Ceramics Key Laboratory,Wuhan University of Science , Technology,Wuhan 430081,China) |
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| Abstract: | The crystallization behavior of CaO-MgO-SiO2 system ceramic fibers with different ratios of CaO/MgO was studied by differential thermal analysis (DTA) and X-ray diffraction(XRD). The results show that the crystallization temperature increases and the glass network structure becomes denser with increasing of the ratios of CaO/MgO. After certain heat-treatment procedure,the main crystallization phase is diopside for samples with the ratio of CaO/MgO at 2:1,and parawollastonite or wollastonite precipitate as t... |
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| Keywords: | ceramic fiber ratio of CaO/MgO crystallization |
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