Mechanical Properties of Silicon Carbide Composites Reinforced with Reduced Graphene Oxide

Broniszewski, Kamil; Woźniak, Jarosław; Cygan, Tomasz; Moszczyńska, Dorota; Olszyna, Andrzej

doi:10.3390/ma17133370

Open AccessArticle

Mechanical Properties of Silicon Carbide Composites Reinforced with Reduced Graphene Oxide

by

Kamil Broniszewski

,

Jarosław Woźniak

,

Tomasz Cygan

,

Dorota Moszczyńska

and

Andrzej Olszyna

^*

Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland

^*

Author to whom correspondence should be addressed.

Materials 2024, 17(13), 3370; https://doi.org/10.3390/ma17133370

Submission received: 7 June 2024 / Revised: 29 June 2024 / Accepted: 5 July 2024 / Published: 8 July 2024

(This article belongs to the Special Issue Silicon Carbide Materials: Crystal Growth, Device Processing and Functional Applications)

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Abstract

This article presents research on the influence of reduced graphene oxide on the mechanical properties of silicon carbide matrix composites sintered with the use of the Spark Plasma Sintering method. The produced sinters were subjected to a three-point bending test. An increase in flexural strength was observed, which reaches a maximum value of 503.8 MPa for SiC–2 wt.% rGO composite in comparison to 323 MPa for the reference SiC sample. The hardness of composites decreases with the increase in rGO content down to 1475 HV10, which is correlated with density results. Measured fracture toughness values are burdened with a high standard deviation due to the presence of rGO agglomerates. The K_IC reaches values in the range of 3.22–3.82 MPa*m^1/2. Three main mechanisms responsible for the increase in the fracture toughness of composites were identified: bridging, deflecting, and branching of cracks. Obtained results show that reduced graphene oxide can be used as a reinforcing phase to the SiC matrix, with an especially visible impact on flexural strength.

Keywords: composites; silicon carbide; mechanical properties

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MDPI and ACS Style

Broniszewski, K.; Woźniak, J.; Cygan, T.; Moszczyńska, D.; Olszyna, A. Mechanical Properties of Silicon Carbide Composites Reinforced with Reduced Graphene Oxide. Materials 2024, 17, 3370. https://doi.org/10.3390/ma17133370

AMA Style

Broniszewski K, Woźniak J, Cygan T, Moszczyńska D, Olszyna A. Mechanical Properties of Silicon Carbide Composites Reinforced with Reduced Graphene Oxide. Materials. 2024; 17(13):3370. https://doi.org/10.3390/ma17133370

Chicago/Turabian Style

Broniszewski, Kamil, Jarosław Woźniak, Tomasz Cygan, Dorota Moszczyńska, and Andrzej Olszyna. 2024. "Mechanical Properties of Silicon Carbide Composites Reinforced with Reduced Graphene Oxide" Materials 17, no. 13: 3370. https://doi.org/10.3390/ma17133370

APA Style

Broniszewski, K., Woźniak, J., Cygan, T., Moszczyńska, D., & Olszyna, A. (2024). Mechanical Properties of Silicon Carbide Composites Reinforced with Reduced Graphene Oxide. Materials, 17(13), 3370. https://doi.org/10.3390/ma17133370

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Mechanical Properties of Silicon Carbide Composites Reinforced with Reduced Graphene Oxide

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