MECHANICAL PROPERTIES OF 2.45 GHz MICROWAVE SINTERED Si3N4-Y2O3-MgO-ZrO2 SYSTEM

Microwave sintered samples of Si3N4-Y2O3-MgO-ZrO2 exhibited higher hardness compared to conventionally sintered samples. SEM microstructures of the microwave sintered samples revealed lower average grain length and width than those of the conventionally sintered samples. Fracture toughness increased...

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Bibliographic Details
Published inJournal of the European Ceramic Society Vol. 29; no. 10; pp. 2037 - 2043
Main Authors Chockalingam, S, Earl, D A
Format Journal Article
LanguageEnglish
Published 01.07.2009
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Summary:Microwave sintered samples of Si3N4-Y2O3-MgO-ZrO2 exhibited higher hardness compared to conventionally sintered samples. SEM microstructures of the microwave sintered samples revealed lower average grain length and width than those of the conventionally sintered samples. Fracture toughness increased with increasing sintering temperature in the case of conventionally sintered samples whereas microwave sintered samples exhibited no variation despite differences in microstructure. The results demonstrated that microwave sintering could influence the microstructure and thereby improve the mechanical properties.
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ISSN:0955-2219
DOI:10.1016/j.jeurceramsoc.2009.01.006