Metallorganic- and Microwave-Processing of Monolithic and Polyphasic Ceramics

Titelangaben

Willert-Porada, Monika:
Metallorganic- and Microwave-Processing of Monolithic and Polyphasic Ceramics.
In: MRS Online Proceedings Library. Bd. 269 (1992) . - S. 193-198.
ISSN 1946-4274
DOI: https://doi.org/10.1557/PROC-269-193

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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.