Mechanical properties and tribological performance of alumina matrix composites reinforced with graphene-family materials

Cygan, Tomasz; Petrus, Mateusz; Woźniak, Jarosław; Cygan, S.; Teklińska, Dominika; Kostecki, M.; Jaworska, L.; Olszyna, A.

doi:10.1016/j.ceramint.2019.11.211

Cited by 16 publications

(10 citation statements)

References 44 publications

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“…In addition, the gap formation was observed at the matrix and GNP interface, which may serve as a stress concentrator, and lower the mechanical properties. A similar feature was also reported for the Al 2 O 3 -MLG systems [73].…”

Section: Microstructural Characterizationsupporting

confidence: 86%

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Bozkurt

Akarsu

Akin

et al. 2021

Journal of Asian Ceramic Societies

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The aim of this study is to produce highly dense Si 3 N 4 based composites with good mechanical properties and bioactivity. Si 3 N 4 ceramics without using sintering aids, Si 3 N 4-HA and Si 3 N 4-HA-GNP based composites have been produced by spark plasma sintering (SPS) at temperatures of 1525-1550°C. The effect of reinforcement type and content on the densification behavior, phase analysis, microstructural development, mechanical properties, and in-vitro bioactivity behavior of Si 3 N 4 were systematically investigated. Monolithic Si 3 N 4 that contains a high amount of β-Si 3 N 4 phase (~87 wt%) was produced by nearly full densification (~99%). Hydroxyapatite (HA) was used as a starting powder during the preparation of binary and triple composites to provide bioactivity to Si 3 N 4 , and after sintering, HA transformed into tricalcium phosphate (β-TCP and α-TCP) polymorphs. The incorporation of GNPs had a positive effect on the stability of β-TCP phases at higher sintering temperatures. The improvement in indentation fracture toughness of the samples with GNP reinforcement was mainly attributable to pull-out and crack deflection mechanisms. In-vitro bioactivity of GNP added composites enhanced with increasing α-TCP content. More calcium phosphate-based particle formation was observed in Si 3 N 4-HA-GNP composites compared to the Si 3 N 4-HA.

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Section: Microstructural Characterizationsupporting

confidence: 86%

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Bozkurt

Akarsu

Akin

et al. 2021

Journal of Asian Ceramic Societies

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“…It is very obvious that the fracture strength and fracture toughness of composites corresponding to the stepwise feeding ball milling are much higher, and their values reach 754.20 MPa and 7.50 MPa·m 1/2 . This value is much bigger than 4.56 MPa·m 1/2 [ 10 ], 3.8 MPa·m 1/2 [ 11 ] and 5.5 MPa·m 1/2 [ 13 ] of the composites obtained in the literature. This shows that the quality of graphene dispersion has great influence on the mechanical properties of the composites.…”

Section: Resultsmentioning

confidence: 61%

“…In recent years, graphene as a two-dimensional material has been widely used as a reinforcing material in the toughening of ceramics [ 6 , 7 , 8 , 9 ]. For example, Cygan et al prepared Al 2 O 3 -G by spark plasma sintering (SPS), and studied the mechanical properties of composites [ 10 ]. They reported that the fracture toughness of composites with series of contents of multilayered graphene and graphene oxide was in a range of 4.56 MPa·m 1/2 and 4.33 MPa·m 1/2 [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…For example, Cygan et al prepared Al 2 O 3 -G by spark plasma sintering (SPS), and studied the mechanical properties of composites [ 10 ]. They reported that the fracture toughness of composites with series of contents of multilayered graphene and graphene oxide was in a range of 4.56 MPa·m 1/2 and 4.33 MPa·m 1/2 [ 10 ]. Celik et al prepared Al 2 O 3 -G by SPS, and studied the effects of microstructure on the mechanical properties of materials [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Preparation Methods on the Microstructure and Mechanical Properties of Graphene-Reinforced Alumina Matrix Composites

Zhang

Jia

et al. 2022

Materials

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Recent years have witnessed a growing research interest in graphene-reinforced alumina matrix composites (Al2O3-G). In this paper, to better achieve the dispersion of graphene in composites, a ball milling method for adding raw materials step by step, called stepwise feeding ball milling, was proposed. The Al2O3-1.0 wt % graphene composites were prepared by this stepwise feeding ball milling and hot pressing. Then, the effects of sintering temperature and sintering pressure on the microstructure and mechanical properties of composites were studied. Results showed that the bending strength, fracture toughness and Vickers hardness of composites increased firstly and then decreased with increasing sintering temperature. The mechanical properties of composites were all at their maximum with the sintering temperature of 1550 °C. For example, the bending strength of composites reached 754.20 MPa, which was much bigger than 478.03 MPa at 1500 °C and 364.01 MPa at 1600 °C. Analysis suggested that the strength of composites was mainly related to the grain size, microflaw size and porosity.

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“…There are several known materials that are characterised by a two-dimensional layout, e.g.,: the aforementioned graphene and its derivatives, molybdenum disulfide, tungsten ditelluride, hexagonal boron nitride or phosphorene. Recent progress made within the field of materials science resulted in other structures joining this list, the MXenes [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Alumina Composites with Addition of Structurally Modified 2D Ti3C2 (MXene) Phase

et al. 2021

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This study presents new findings related to the incorporation of MXene phases into ceramic. Aluminium oxide and synthesised Ti3C2 were utilised as starting materials. Knowing the tendency of MXenes to oxidation and degradation, particularly at higher temperatures, structural modifications were proposed. They consisted of creating the metallic layer on the Ti3C2, by sputtering the titanium or molybdenum. To prepare the composites, powder metallurgy and spark plasma sintering (SPS) techniques were adopted. In order to evaluate the effectiveness of the applied modifications, the emphasis of the research was placed on microstructural analysis. In addition, the mechanical properties of the obtained sinters were examined. Observations revealed significant changes in the MXenes degradation process, from porous areas with TiC particles (for unmodified Ti3C2), to in situ creation of graphitic carbon (in the case of Ti3C2-Ti/Mo). Moreover, the fracture changed from purely intergranular to cracking with high participation of transgranular mode, analogously. In addition, the results obtained showed an improvement in the mechanical properties for composites with Ti/Mo modifications (an increase of 10% and 15% in hardness and fracture toughness respectively, for specimens with 0.5 wt.% Ti3C2-Mo). For unmodified Ti3C2, enormously cracked areas with spatters emerged during tests, making the measurements impossible to perform.

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Mechanical properties and tribological performance of alumina matrix composites reinforced with graphene-family materials

Cited by 16 publications

References 44 publications

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Effects of Preparation Methods on the Microstructure and Mechanical Properties of Graphene-Reinforced Alumina Matrix Composites

Microstructure and Mechanical Properties of Alumina Composites with Addition of Structurally Modified 2D Ti3C2 (MXene) Phase

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