Application of Silica Sol-Gel in Colloidal Forming of Ceramics

Abstract

Abstract: A novel colloidal forming processing of ceramics was investigated. The characteristic of silica
sol-gel was applied successfully to colloidal forming of ceramics. The process is based on the casting of the slurry, containing powder and silica sol
prepared by hydrolysis of tetraethoxysilane (TEOS) at pH 12.8. Then the mixture forms gelled parts through silica sol-gel. Ceramic green parts
with strength of 5MPa can be obtained by this method. The forming process has advantages of low toxicity and high consolidation rate.

Key words: ceramics, colloidal forming, silica sol, tetraethoxysilane

CLC Number:

TQ174

LUO Jie-Sheng,XIE Zhi-Peng,MA Jing-Tao,HUANG Yong,CHENG Yi-Bing. Application of Silica Sol-Gel in Colloidal Forming of Ceramics[J]. Journal of Inorganic Materials.

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Application of Silica Sol-Gel in Colloidal Forming of Ceramics

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