Preparation and Characterization of Multilayer Graphene by Mechanical Milling and Related Applications for Ceramic Composites

Abstract:

As graphene nanomaterials present exceptional mechanical, thermal and electric properties therefore it can be an excellent reinforcement material for ceramic composites. The research of ceramic composites incorporated with carbon-based fillers has focused on carbon nanotubes until now. In this work silicon nitride-based nanocomposites have been prepared with different ammount (1 and 3 wt%) of multilayer graphene (MLG) made by mechanical milling-based method as well as exfoliated graphite nanoplatelets (xGnP) and nanographene platelets (Angstron) in comparison. The morphology and microstructure of the sintered samples were studied by scanning electron microscope and transmission electron microscope. Phase compositions were determined by X-ray diffractometer. The bending strength and elastic modulus of MLG-silicon nitride composites showed enhanced values compared to the other graphene reinforced silicon nitride ceramic composites.

• Periodical: Materials Science Forum (Volume 729)
• Pages: 252-259
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.729.252
• Online since: November 2012
• Authors: Peter Kun, Orsolya Tapasztó, Zsolt Czigány, Csaba Balázsi
• Keywords: Mechanical Property, Multilayer Graphene, Scanning Electron Microscope (SEM), Silicon Nitride, Transmission Electronmicroscope (TEM), X-Ray Diffraction (XRD)

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