Ceramic composite Ti3SiC2–TiB2—Microstructure and mechanical properties

Górny, G; Rączka, Marian; Stobierski, L.; Rożniatowski, K.; Rutkowski, Paweł

doi:10.1016/j.matchar.2009.03.011

Cited by 22 publications

(13 citation statements)

References 4 publications

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“…The results demonstrate that Ti 3 SiC 2 decomposes to TiC and Si when the sintering temperature approached to 1000 • C [23]. Meanwhile, the Si diffused into Cu matrix and form solid solution or intermetallic compounds [24]. that Ti3SiC2 decomposes to TiC and Si when the sintering temperature approached to 1000 °C [23].…”

Section: Characterization Of Cu/ti 3 Sic 2 /C/bn/gnps Nanocompositesmentioning

confidence: 99%

“…that Ti3SiC2 decomposes to TiC and Si when the sintering temperature approached to 1000 °C [23]. Meanwhile, the Si diffused into Cu matrix and form solid solution or intermetallic compounds [24]. Figure 4 presents the metallographic results of composite along parallel direction to that of the compact-pressing.…”

Section: Characterization Of Cu/ti 3 Sic 2 /C/bn/gnps Nanocompositesmentioning

confidence: 99%

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Effects of Multi-Phase Reinforcements on Microstructures, Mechanical and Tribological Properties of Cu/Ti3SiC2/C/BN/GNPs Nanocomposites Sintered by Vacuum Hot-Pressing and Hot Isostatic Pressing

Shao

Sun

Liu

et al. 2016

Metals

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Cu/Ti 3 SiC 2 /C/BN/GNPs nanocomposites were prepared by vacuum hot-pressing (HP) sintering and hot isostatic pressing (HIP) sintering methods. Microstructures, mechanical and tribological properties of Cu/Ti 3 SiC 2 /C/BN/GNPs nanocomposites were investigated. Microstructures were examined by optical microscopy (OM), X-ray diffraction (XRD) and scanning electron microscope (SEM). Mechanical properties were determined by the relative density, micro-Vickers hardness, as well as tensile strength, compressive strength and shear strength. Tribological behavior of the Cu/Ti 3 SiC 2 /C/BN/GNPs composite against the GCr15 steel ring was evaluated using an M-2000 wear tester with high tangential sliding velocity. Results demonstrated that BN and graphene nano-platelets (GNPs) have an impact on the microstructures and mechanical properties of Cu/Ti 3 SiC 2 /C/BN/GNPs nanocomposites. Based on microstructures, and mechanical and tribological properties of Cu/Ti 3 SiC 2 /C/BN/GNP nanocomposites, strengthening, fracture and wear mechanisms for synergistic enhancement by multi-phase reinforcements were analyzed.Keywords: Cu/Ti 3 SiC 2 /C/BN/GNPs nanocomposites; hot isostatic pressing; microstructure; mechanical properties; wear BackgroundCopper matrix self-lubricating composites are widely used in many industrial applications, such as friction materials, bearings, bushes, brake pads/discs, electrical sliding contacts and fusion reactors, due to their excellent anti-friction, wear properties, good thermal, electrical conductivities, superior strength and ease of production [1-6]. As many reports have revealed, copper-graphite is one of the most often-used solid self-lubricating materials for graphite's lamellar structure [6], and copper-graphite composites have improved wear resistance, lower wear loss and friction coefficients than pure copper [7,8]. However, the main inadequacy of using graphite as self-lubricant is the unsatisfactory mechanical properties of the composites [9,10]. Due to the impressive thermal, electrical, mechanical and tribological properties, graphene is a promising reinforcement for copper matrix, and an increasing number of researches have examined Cu/graphene composites aiming to improve their mechanical and tribological properties [4,9,11]. The results reveal that the presence of graphene in matrix can not only improve the mechanical properties but also decrease both the friction coefficient and the wear rate of composites [12]. Nevertheless, the agglomeration of graphene nano-platelets (GNPs) and interfacial interactions significantly affect the strengthening efficiency of

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Section: Characterization Of Cu/ti 3 Sic 2 /C/bn/gnps Nanocompositesmentioning

confidence: 99%

Section: Characterization Of Cu/ti 3 Sic 2 /C/bn/gnps Nanocompositesmentioning

confidence: 99%

Effects of Multi-Phase Reinforcements on Microstructures, Mechanical and Tribological Properties of Cu/Ti3SiC2/C/BN/GNPs Nanocomposites Sintered by Vacuum Hot-Pressing and Hot Isostatic Pressing

Shao

Sun

Liu

et al. 2016

Metals

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“…The introduction of secondary phase as reinforcement into Ti 3 SiC 2 has been proved to be an effective approach to overcome these disadvantages. For example, numerous reinforcements, including TiB 2 [9], SiC [10], c-BN [11], TiC [12], Al 2 O 3 [13] and ZrO 2 [14], have been introduced to improve the mechanical properties of Ti 3 SiC 2 . Commonly, the additions of ceramic particles can improve Vickers hardness and exural strength of Ti 3 SiC 2 matrix composites.…”

Section: Introductionmentioning

confidence: 99%

“…Commonly, the additions of ceramic particles can improve Vickers hardness and exural strength of Ti 3 SiC 2 matrix composites. For example, Górny et al [9] reported that the addition of TiB 2 could effectively improve the Vickers hardness and elastic modulus of Ti 3 SiC 2 . Tian et al [12] prepared Ti 3 SiC 2 -TiC composites and found that the Vickers hardness of the composite increased with increasing TiC content up to 90 vol.%, the exural strength was enhanced by 64% when the content of TiC was 50 vol.%.…”

Section: Introductionmentioning

confidence: 99%

Investigation on microstructure and mechanical properties of short-carbon-fiber/Ti3SiC2 composites

He¹,

Guo

et al. 2020

Preprint

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In this paper, short-carbon-fibers (Csf) reinforced Ti3SiC2 matrix composites (Csf/Ti3SiC2, the Csf content was 0, 2, 5 and 10 vol.%) were fabricated by spark-plasma-sintering (SPS) using Ti3SiC2 powders and Csf as starting materials at 1300 oC. The effects of Csf addition on the phase compositions, microstructures and mechanical properties (including hardness, flexural strength and fracture toughness) of Csf/Ti3SiC2 composites were investigated. The Csf, with a bi-layered transition layers, i.e. TiC and SiC layer, were homogeneously distributed in the as-prepared Csf/Ti3SiC2 composites. With the increase of Csf content, the fracture toughness of Csf/Ti3SiC2 composites increased, but the flexural strength decreased, while the Vickers hardness decreased initially then increased steadily when the Csf content was higher than 2 vol.%. These changed performances could be attributed to the introduction of Csf and the formation of much stronger interfacial phases.

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“…Ti 3 SiC 2 offers advantages of heat conductivity, high electric conduction, easy processing similar to metals, oxidation resistance, light weight, and high temperature resistance, making it a useful material for multiple applications [3, 4]. Without affecting the self-lubricating properties and conductivity of copper graphite alloys, Ti 3 SiC 2 can improve the strength, hardness, and wear resistance of copper-graphite composites [5].…”

Section: Introductionmentioning

confidence: 99%

Synergetic Effect of Graphene and MWCNTs on Microstructure and Mechanical Properties of Cu/Ti3SiC2/C Nanocomposites

et al. 2017

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Multi-walled carbon nanotubes (MWCNTs) and graphenes have been taken for novel reinforcements due to their unique structure and performance. However, MWCNTs or graphenes reinforced copper matrix composites could not catch up with ideal value due to reinforcement dispersion in metal matrix, wettability to metal matrix, and composite material interface. Taking advantage of the superior properties of one-dimensional MWCNTs and two-dimensional graphenes, complementary performance and structure are constructed to create a high contact area between MWCNTs and graphenes to the Cu matrix. Mechanical alloying, hot pressing, and hot isostatic pressing techniques are used to fabricate Cu matrix self-lubricating nanocomposites. Effects of MWCNTs and graphenes on mechanical properties and microstructures of Cu/Ti3SiC2/C nanocomposites are studied. The fracture and strengthening mechanisms of Cu/Ti3SiC2/C nanocomposites are explored on the basis of structure and composition of Cu/Ti3SiC2/C nanocomposites with formation and function of interface.

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Ceramic composite Ti3SiC2–TiB2—Microstructure and mechanical properties

Cited by 22 publications

References 4 publications

Effects of Multi-Phase Reinforcements on Microstructures, Mechanical and Tribological Properties of Cu/Ti3SiC2/C/BN/GNPs Nanocomposites Sintered by Vacuum Hot-Pressing and Hot Isostatic Pressing

Effects of Multi-Phase Reinforcements on Microstructures, Mechanical and Tribological Properties of Cu/Ti3SiC2/C/BN/GNPs Nanocomposites Sintered by Vacuum Hot-Pressing and Hot Isostatic Pressing

Investigation on microstructure and mechanical properties of short-carbon-fiber/Ti3SiC2 composites

Synergetic Effect of Graphene and MWCNTs on Microstructure and Mechanical Properties of Cu/Ti3SiC2/C Nanocomposites

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