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Sol-Gel Processing of Transparent MgAl2O4

Published online by Cambridge University Press:  25 February 2011

Yuan-Fu Yu ,
Sangvavann Heng ,
Tai-Il Mah  and
Edward E. Hermes
Yuan-Fu Yu
Affiliation:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Rd., Dayton, OH 45432 Presently with Ethyl Technical Center, Box 14799, Baton Rouge, LA 70898
Sangvavann Heng
Affiliation:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Rd., Dayton, OH 45432
Tai-Il Mah
Affiliation:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Rd., Dayton, OH 45432
Edward E. Hermes
Affiliation:
AFWAL/MLLM, Wright-Patterson AFB, OH 45433
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Abstract

High-purity, transparent monolithic spinel (MgAl2O4) was synthesized via the hydrolytic thermal decomposition of mixed alkoxide organo-metallic precursors. Several factors, such as the metal alkoxide concentration in various solvents, the water to solvent ratio, and the reaction temperatures affect the hydrolysis of the mixed alkoxides. These factors also influence the transparency of the resulting sols and gels. The degree of transparency of the sols and gels is also influenced by such factors as pH and drying control chemical additives. Variations in the processing conditions during drying, aging, and sintering of the gels produced ceramic materials with high degree of transparency.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 121: Symposium H – Better Ceramics Through Chemistry III , 1988 , 601
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

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