A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Abstract Since the gels prepared via solution processes inherently retain porosity, porous glasses are generally obtained as intermediate products to final full-dense glasses[1]. In order to avoid undesired deformation and fracture on drying, various efforts have been made to control the drying behavior of wet gels through the precise control of their pore size distribution. Shoup [2] demonstrated the formation of meso- to macroporous alkali silicate gels which can be dried without fracture and sintered into full dense silica glass after vigorous washing. For more general alkoxy-derived gels, Hench et al. [3] established a process to enlarge the median pore size of silica by immersing gels into aqueous ammonium hydroxide solutions.
Abstract Since the gels prepared via solution processes inherently retain porosity, porous glasses are generally obtained as intermediate products to final full-dense glasses[1]. In order to avoid undesired deformation and fracture on drying, various efforts have been made to control the drying behavior of wet gels through the precise control of their pore size distribution. Shoup [2] demonstrated the formation of meso- to macroporous alkali silicate gels which can be dried without fracture and sintered into full dense silica glass after vigorous washing. For more general alkoxy-derived gels, Hench et al. [3] established a process to enlarge the median pore size of silica by immersing gels into aqueous ammonium hydroxide solutions.
Porous Glasses
Nakanishi, K. (author)
2004-01-01
3 pages
Article/Chapter (Book)
Electronic Resource
English
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