基于关键化学组分设计制备发泡陶瓷

Design and Preparation of Foamed Ceramics Based on Key Chemical Components

文章探究了基于关键化学组分设计制备发泡陶瓷过程中的制备条件,特别是关键化学组分SiC、Na_2O、Al_2O_3的含量对发泡陶瓷性能的影响。利用化学组分设计制备的发泡陶瓷具有良好的隔热性能,其导热系数达0. 09 W/(m·K),最可几孔径为2. 8 mm,大孔之间的孔壁上分布有平均孔径为2μm的微孔,这种独特的大孔-微孔的分级泡孔结构是其导热性能良好的关键原因。

In this paper,the preparation conditions in the process of designing and preparing foamed ceramics based on key chemical components were investigated,especially the effect of the contents of key chemical components such as SiC,Na 2O and Al 2O 3 on the properties of foamed ceramics.Foamed ceramics designed and prepared by using chemical components have good thermal insulation performance,with thermal conductivity reaching 0.09 W/(m·K),the maximum pore size is 2.8 mm,and micropores with an average pore diameter of 2μm are distributed on the pore wall between the macropores,which unique macropore-micropore hierarchical cellular structure is the key reason for its good thermal conductivity.