| 刚玉质浇注料气孔孔径分布及其与强度的相关性 |
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| 引用本文： | 朱伯铨,方斌祥,李享成,万洪波,李宁. 刚玉质浇注料气孔孔径分布及其与强度的相关性[J]. 硅酸盐学报, 2009, 37(6) |
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| 作者姓名： | 朱伯铨 方斌祥 李享成 万洪波 李宁 |
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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-省部共建国家重点实验室培育基地,武汉,430081 |
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| 摘 要： | 分别以活性氧化铝微粉和Al2O3-SiO2凝胶粉作为结合剂,制备了2种刚玉质浇注料.研究了浇注料结构中的气孔孔径分布,并借助回归方程和灰色关联理论分析了不同气孔孔径区间与浇注料强度的相关性.研究发现:浇注料气孔孔径分布受其内部微粉填充效应和基质烧结效应共同影响;回归曲线证实浇注料气孔孔径中位径值与其强度间具有很高的相关性,相关因子R2>0.9;不同孔径区间与浇注料强度的灰色关联度有明显差异,且同一孔径区间与其强度灰色关联度的大小也随热处理温度的变化而变化.对于活性氧化铝微粉结合的刚玉质浇注料,在110～1 500℃的整个热处理温度范围内,<0.5μm的气孔孔径区间与强度的灰色关联度最大.
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| 关 键 词： | 刚玉质浇注料 孔径分布 相关性 灰色关联理论 强度 |
PORE SIZE DISTRIBUTION AND ITS CORRELATION WITH STRENGTH OF CORUNDUM-BASED CASTABLES |
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| ZHU Boquan,FANG Binxiang,LI Xiangcheng,WAN Hongbo,LI Ning. PORE SIZE DISTRIBUTION AND ITS CORRELATION WITH STRENGTH OF CORUNDUM-BASED CASTABLES[J]. Journal of The Chinese Ceramic Society, 2009, 37(6) |
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| Authors: | ZHU Boquan FANG Binxiang LI Xiangcheng WAN Hongbo LI Ning |
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| Affiliation: | The Hubei Province Key Laboratory of Refractories and Ceramics;Province-Ministry Jointly Constructed Cultivation Base for State Key Laboratory;Wuhan University of Science and Technology;Wuhan 430081;China |
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| Abstract: | Two corundum-based castables bonded by reactive micro-alumina and Al_2O_3-SiO_2 gel powder were prepared respectively. The pore size distribution of the castables was studied and the correlation of the pore size distribution with the castables' strength was analyzed by the regression equation and gray relational theory.It is found that the distribution of pore size is influenced by the effects of micro powder filling and matrix sintering.The strong correlation degree between the median diameter of the pores... |
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| Keywords: | corundum based castables pore size distribution correlation gray relational theory strength |
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