Thermal Conductivity of Sol-gel Bonded Castables

摘要：

　　The silica-alumina sol bonding agent,prepared by the sol gel route from ethyl silicate and aluminium isopropanol,was utilized in the refractory castables.The influence of structure on the heat transfer has been investigated using different sorts of refractory matrix.The results indicated that the heat conductivity of sol-gel bonded castables was considerably affected by their structure.The phase composition of matrix,porosity,pore size distribution and pore size structure were the most important factors.Thermal conductivity has been measured from the ambient temperature up to 1250 ℃.The influence of crystalline phases and the glassy phase formation and the influence of the pore size distribution on the thermal conductivity were also described in this work.

关键词： Castables Thermal conductivity Structural property

作者: F.Cao C.Y.Wang P.S.Tang C.Y.Lu H.F.Chen S.G.Long

作者单位: Department of Chemistry,Huzhou Teachers College,Huzhou 313000,China;School of Metallurgy and Materia Department of Chemistry,Huzhou Teachers College,Huzhou 313000,China School of Metallurgy and Materials,Anhui University of Technology,Maanshan 243002,China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 1146-1148

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）