Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

EFFECT OF SINTERING AIDS ON MULLIZATION IN SILICON CARBIDE CERAMIC FOAMS

LIU Yan,HUANG Zhengren,DONG Shaoming,JIANG Dongliang (Structural Ceramics Engineering Center of Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China)  
The effect of sintering aids,such as silica sol,alumina,clay,kaolin and quartz,on mullitization in silicon carbide foam ceramic was investigated.Experimental results show that the combination of silica sol,alumina and clay can obviously promote the creation of mullite phase during sintering at 1 400 ℃ for 1 h.A large amount of mullite phase is beneficial to increase the strength of the ceramic at high temperatures and to enhance the refractory property of the ceramic.Formation of mullite phase at relative low temperatures is attributed to the liquid phase produced by clay and the package action of amorphous SiO_(2) in silica sol for alumina particles,which can reduce the distance of diffusion.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved