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Metallorganic- and Microwave-Processing of Monolithic and Polyphasic Ceramics

Published online by Cambridge University Press:  25 February 2011

M. Willert-Porada*
Affiliation:
University Dortmund, Dept. Chem. Eng., 4600 Dortmund 50, Emil Figge Str. 66, Germany
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Abstract

A method for microstructural modelling of ceramic materials utilising precursor compounds and heating by microwave radiation to introduce a second phase as well as to control grain growth is described. The precursor compounds are introduced into the ceramic material by infiltration of a porous compact or by impregnating a classical powder with the precursor prior to compaction. Microwave radiation is used for decomposition of the precursor and for sintering. Decomposition rate controlled pyrolysis of the precursor is only possible by microwave heating. The resulting microwave processed ceramics display a finer and in some cases more bimodal microstructure as compared to conventionally processed samples with the same density.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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References

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