| 粉煤灰基多孔陶瓷过滤材料的制备和性能 |
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| 引用本文： | 熊林,刘晓荣.粉煤灰基多孔陶瓷过滤材料的制备和性能[J].北京科技大学学报,2011,33(3):318-322. |
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| 作者姓名： | 熊林 刘晓荣 |
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| 作者单位： | 宝山钢铁股份有限公司研究院;上海应用技术学院材料工程系; |
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| 基金项目： | 上海市重点学科建设基金资助项目(No.P1502) |
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| 摘 要： | 以粉煤灰为骨料,采用添加造孔剂法制备粉煤灰基多孔陶瓷过滤材料,研究了造孔剂用量和烧结温度对其性能的影响.通过压汞仪、X射线衍射仪和场发射扫描电子显微镜等分析测试技术对试样进行了性能表征.结果表明:随着造孔剂用量的增加,显气孔率和吸水率升高,抗弯强度和密度下降.提高烧结温度可以有效提高抗弯强度,而不影响材料的主要物相组成;当烧结温度大于1 175℃时,显气孔率和透气度显著下降.造孔剂用量为35%,烧结温度为1 175℃时,可制得抗弯强度大、气孔发达及高比表面积的多孔陶瓷过滤材料.
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| 关 键 词： | 粉煤灰 多孔陶瓷 孔径分布 透气度 显微结构 |
Preparation and performance of fly ash porous ceramics for filtration |
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| XIONG Lin,LIU Xiao-rong.Preparation and performance of fly ash porous ceramics for filtration[J].Journal of University of Science and Technology Beijing,2011,33(3):318-322. |
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| Authors: | XIONG Lin LIU Xiao-rong |
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| Institution: | XIONG Lin1),LIU Xiao-rong2)1) Research Institute,Baoshan Iron & Steel Co.Ltd.,Shanghai 201900,China2) Department of Materials Engineering,Shanghai Institute of Technology,Shanghai 200235,China |
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| Abstract: | Porous ceramics were prepared from fly ash by adding a pore-making agent.Some effects of the amount of the pore-making agent and sintering temperature on the properties of the porous ceramics were studied.The properties of specimens were characterized by pressure mercury analyzer,X-ray diffraction(XRD),and field emission scanning electron microscopy(SEM).The results show that with the pore-making agent increasing,the porosity and water absorption increase,but the bending strength and density decrease.Increa... |
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| Keywords: | fly ash porous ceramics pore size distribution gas permeability microstructure |
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