Silicon nitride/silicon carbide nanocomposite obtained by nitridation of SiC: fabrication and high temperature mechanical properties

Si 3N 4/SiC nanocomposites have been successfully synthesized according to a novel technique consisting in the nitridation of silicon carbide raw materials followed by their sintering in the presence of appropriate sintering aids. Depending on the kind of additive used, the microstructure of the fin...

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Bibliographic Details
Published inJournal of the European Ceramic Society Vol. 23; no. 13; pp. 2361 - 2366
Main Authors Poorteman, M., Descamps, P., Cambier, F., Plisnier, M., Canonne, V., Descamps, J.C.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.12.2003
Elsevier
Subjects
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Mechanical properties
Mircostructure-final
Nanocomposites
Nanoscale materials and structures: fabrication and characterization
Nitridation
Physics
Si 3N 4–SiC
Structural ceramics
Technical ceramics
Mechanical properties
Si 3N 4–SiC
Mircostructure-final
Nanocomposites
Nitridation
Ceramic matrix composite
Process control
Nitriding
Thermomechanical properties
Dispersion reinforced material
High temperature
Experimental study
Composite material
Non oxide ceramics
Structural ceramic
Fracture toughness
Additive
Transmission electron microscopy
Silicon Carbides
Sintering
Silicon Nitrides
Nanocomposite
Manufacturing
Microstructure
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Summary:Si 3N 4/SiC nanocomposites have been successfully synthesized according to a novel technique consisting in the nitridation of silicon carbide raw materials followed by their sintering in the presence of appropriate sintering aids. Depending on the kind of additive used, the microstructure of the final nanocomposite can be tailored from elongated silicon nitride matrix grains with silicon carbide nanoparticles dispersed into them, through completely nano-sized composites consisting of equiaxed silicon carbide and silicon nitride grains. Thermomechanical properties are related to those microstructural features and to the secondary phase composition and its subsequent crystallisation.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0955-2219
1873-619X
DOI:10.1016/S0955-2219(03)00088-8