Effect of Composition on Mechanical Properties of Mullite-WC Nano Composites Prepared by Spark Plasma Sintering

Mullite-WC composites were prepared from Mullite and WC powders by spark plasma sintering at 1400 °C for a holding time of 180 s under 30 MPa. Microstructure, strength, and hardness of the mullite-WC composites were studied. The mullite-WC composite containing 5-20 wt% WC reached over 94 % theoretic...

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Bibliographic Details
Published inTribology in industry Vol. 38; no. 4; pp. 552 - 558
Main Authors Rajaei, H, Mobasherpour, I, Farvizi, M, Zakeri, M
Format Journal Article
LanguageEnglish
Published Kragujevac University of Kragujevac, Faculty of Engineering 2016
University of Kragujevac
Subjects
Ceramics
Composition effects
Energy research
Mechanical properties
Morphology
Mullite
Nano composite
Particle size
Plasma sintering
Scanning electron microscopy
Silicon carbide
Spark plasma sintering
Temperature
Tribology
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Summary:Mullite-WC composites were prepared from Mullite and WC powders by spark plasma sintering at 1400 °C for a holding time of 180 s under 30 MPa. Microstructure, strength, and hardness of the mullite-WC composites were studied. The mullite-WC composite containing 5-20 wt% WC reached over 94 % theoretical density. The strength and Vickers hardness of mullite-(10 wt%) WC sintered composite reached maximum values of 298 MPa, and 1589 HV, respectively demonstrating that the introduction of WC significantly enhances the mechanical properties of the mullite matrix.
ISSN:0354-8996
2217-7965