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Environmental Effects in Gel Derived Silicates

Published online by Cambridge University Press:  15 February 2011

L.L. Hench
L.L. Hench*
Affiliation:
Ceramics Division, Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
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Extract

Various methods have been developed for producing crystals, powders, coatings and monoliths from gels [1]. The scientific basis for understanding compositional effects, gelation, aging, drying and densification is also advancing rapidly [2]. However, there is as yet relatively little information on the durability, weathering, or corrosion resistance of glasses, glass-ceramics, ceramics, or composites made via the gel route. Data is also sparse on the effects of vacuum, thermal exposure, or mechanical stress on the stability of gel-derived solids. Relationships between sol-gel processing variables and environmental stability are especially lacking at the present time. Since many end-use applications of gel derived materials involve exposure to severe environments, it is essential that the durability of these materials be established during their development.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 32: Symposium B – Better Ceramics Through Chemistry I , 1984 , 101
Copyright
Copyright © Materials Research Society 1984

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References

REFERENCES

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