Scratch Resistance of the Si3N4-Graphene Nanoplatelets Composites

Monika Kašiarová; Monika Michalková; Ján Dusza; Pavol Šajgalík

doi:10.4028/www.scientific.net/KEM.662.165

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 662Scratch Resistance of the Si3N4-Graphene...

Scratch Resistance of the Si₃N₄-Graphene Nanoplatelets Composites

Abstract:

The scratch resistance of the silicon nitride with the addition of 1 and 7 wt% of graphene multiplatelets prepared by hot press sintering has been studied. The scratch resistance behaviour of Si₃N₄-GNP composites were investigated using a Rockwell indenter for normal applied loads ranging from 1-150 N. Si₃N₄-7-wt%GNP composite behaved differently during the scratch test depending on the normal applied load. The coefficient of friction changed dramatically at higher load and extensive crack propagation resulting in the chipping is observed.

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Periodical:

Key Engineering Materials (Volume 662)

Pages:

165-168

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.662.165

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Online since:

September 2015

Authors:

Monika Kašiarová*, Monika Michalková, Ján Dusza, Pavol Šajgalík

Keywords:

Graphene Platelets, Scratch Resistance, Silicon Nitride

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