不同造孔剂对CA_6-MA多孔材料性能的影响  

Effect of Different Pore Formers on Properties of CA_6-MA Porous Material

作　　者：李胜[1,2] 李友胜[1] 韩兵强[1] 柯昌明[1] 李楠[1] 

机构地区：[1]武汉科技大学耐火材料与高温陶瓷国家重点实验室培养基地,武汉430081 [2]维苏威高级陶瓷(苏州)有限公司,苏州215021

出　　处：《硅酸盐通报》2010年第5期1021-1025,共5页Bulletin of the Chinese Ceramic Society

基　　金："十一五"国家科技支撑计划项目(2006BAB02B02)

摘　　要：以等离子熔融还原技术提取硅钛合金后的尾渣(<0.088mm)和工业氧化铝(D50=8.79μm)为原料,选取锯末、玉米淀粉和炭黑作为造孔剂,采用浇注成型工艺,在1550℃温度下烧成制得了六铝酸钙-镁铝尖晶石多孔材料,对多孔材料的常温物理性能和成孔机理做了对比研究。采用15%锯末和30%玉米淀粉复合造孔剂可以制备出具备双峰孔径分布、显气孔率70%、耐压强度1.6MPa的CA6-MA多孔材料。Calcium hexaluinate-spinel porous material was prepared from blast furnace（BF） tailings（ 0.088 mm） after extracting silicon-titanium alloy and industrial alumina（D50 = 8.79 μm） with plasma fusion technique,and sawdust,corn starch and carbon as pore formers.The raw materials were cast in mould,then calcined at 1550 ℃.Physical properties and the pore-forming mechanism of the three kinds of samples are discussed.CA6-MA porous material with 70% apparent porosity,1.6 MPa compressive strength and with double peak pore size distribution structure was prepared by adding 15wt% sawdust and 30wt% starch combined pore formers.

关 键 词：六铝酸钙 多孔材料 造孔剂 性能与结构 

分 类 号：TQ175[化学工程—硅酸盐工业]