Microstructural, tribological and compression behaviour of Copper matrix reinforced with Graphite-SiC hybrid composites

Jamwal, Anbesh; Seth, Prem Prakash; Kumar, Devendra; Agrawal, Rajeev; Sadasivuni, Kishor Kumar; Gupta, Pallav

doi:10.1016/j.matchemphys.2020.123090

Cited by 74 publications

(26 citation statements)

References 31 publications

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“…9 Composite materials are the macroscopic combination of at least two chemically different constituents which exhibit different properties than the constituents, the one constituent is known as matrix and other as reinforcement. 10 It is found that incorporation of ceramic reinforcements such as Al 2 O 3 , 11 SiC, 12 TiC, 13 B 4 C 14 improves mechanical and tribological properties of composite materials. 15 Different studies have been done to improve the mechanical properties of ZA alloy-based composites which have made some new research scopes in the area of advanced metal matrix composites.…”

Section: Introductionmentioning

confidence: 99%

Characterization of mechanical and tribological properties of graphite and alumina reinforced zinc alloy (ZA-27) hybrid metal matrix composites

Gangwar

Payak

Pathak

et al. 2020

Journal of Composite Materials

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The aim of present study is to investigate the microstructural, mechanical and tribological behavior of Zinc Alloy (ZA-27) hybrid metal matrix composites reinforced with graphite (Gr) and alumina (Al2O3). In the present study graphite and Al2O3 content is varied with composition (0, 3.5, 7 and 10.5 wt. %) prepared with liquid state stir casting process. Microstructure, density, hardness, compressive strength, impact strength and wear rate of composites have been investigated. SEM micrograph shows the uniform distribution of reinforcement particles in ZA-27 matrix. It is found that mechanical properties of composites depend on the reinforcements content. Hardness, compressive strength and impact strength of composites increases with an increase in reinforcements content up to 7 wt. %. It is observed that reinforced composites show good tribological properties. Wear resistance of composites is increased with an increase in hybrid reinforcement content. Maximum wear resistance is found at 10.5 wt.% reinforcements content. Further, TOPSIS methodology is adopted for the optimization of reinforcements content which shows that 7 wt.% of reinforcements provide better mechanical properties among all the compositions. It is expected that this composite will be beneficial in automobile industries.

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Section: Introductionmentioning

confidence: 99%

Characterization of mechanical and tribological properties of graphite and alumina reinforced zinc alloy (ZA-27) hybrid metal matrix composites

Gangwar

Payak

Pathak

et al. 2020

Journal of Composite Materials

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“…Copper composites, which are formed by the combination of the excellent elastic modulus of ceramic materials and the high ductility of copper, are used especially in the aerospace and automotive industries [5]. Copper matrix composites are widely used in many fields, such as electrical household appliances, aerospace, automotive and electronics industries [6]. In addition, Cu-Gr/SiC composites are used in bearings, bushings, and heat sinks due to their low thermal expansion coefficient [7].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mechanical and Tribological Aspect of Self-Lubricating Cu-6Gr Composites Reinforced with SiC–WC Hybrid Particles

et al. 2022

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Because of their high thermal conductivity, good corrosion resistance, and great mechanical qualities, copper matrix composites are appealing materials utilized in a variety of industries. This study investigates the mechanical properties of copper–graphite (Cu–Gr) matrix composites reinforced with silicon carbide (SiC) and tungsten carbide (WC) particles by hot pressing using powder metallurgy method. The goal is to investigate the influence of the reinforcement ratio on the mechanical characteristics of copper composite materials generated (density, hardness, flexural strength, and wear resistance). SEM, EDS, and X-RD analysis were used to perform metallographic examinations. The highest relative density with a value of 98.558% was determined in the C3 sample. The findings revealed that when the reinforcement ratio was raised, the hardness rose. The highest hardness value was observed in the C6 sample with an increase of 12.52%. Sample C4 (with the lowest SiC and WC particles ratio) had the highest bending stress (233.18 MPa). Bending stress increased by 35.56% compared to the C1 sample. The lowest specific wear rates were found in the C4 sample, with a decrease of 82.57% compared to the C1 sample. The lowest wear rate (6.853 × 10−7 mm3/Nm) also occurred in the C4 sample. The microstructural analysis showed that the hybrid reinforcement particles exhibited a homogeneous distribution in the copper matrix. X-RD analysis showed that there was no intermediate reaction between the parent matrix and the hybrid reinforcements. A good interfacial bond was observed between the matrix structure and the hybrid reinforcements. The motivation of this research was to utilise the advantages of the unique features of SiC–WC hybrid particles to improve the performance of newly developed Cu-6Gr composites for wear-resistance applications.

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“…The resultant composite exhibits output voltage anisotropy (owing to its electrode structure with radial electric field consisting of metal-core and matrix [11]) and high strength (because of the metal matrix with excellent mechanical properties). Typically, metal matrix composites are reinforced with high-strength ceramics (such as SiC and Al 2 O 3 ) to increase their mechanical strength [12][13][14][15][16][17][18]; however, in the developed composite, piezoelectric ceramics are reinforced by metal because the metal matrix has higher mechanical properties than the piezoelectric ceramics. In addition, the thermal stress caused by the difference in the thermal expansion coefficients between the piezoelectric ceramics and the metal is expected to improve the strength of the piezoelectric ceramics by acting as a prestress on the piezoelectric ceramics.…”

Section: Introductionmentioning

confidence: 99%

Electric polarization and crystal orientation of lead zirconate titanate under mechanical stress due to embedding in a metal matrix

et al. 2021

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The mechanical characteristics of piezoelectric ceramic fibers can be improved by embedding the fibers in a metal matrix. The compressive stress generated during the embedding process, however, limits the polarization of piezoelectric ceramic composites. To study and determine the relationship between the mechanical and piezoelectric properties of piezoelectric ceramics, we analyzed the crystallographic orientation of piezoelectric ceramics embedded in an aluminum matrix via electron backscatter diffraction. The orientation of the crystals before and after the polarization of the piezoelectric fibers, in which residual stresses were generated during embedding, was evaluated. Furthermore, the residual stresses were reduced by heat treatment, and the resultant angle of orientation was evaluated before and after polarization. Results showed that, as the residual stresses were relieved, the orientation of the piezoelectric ceramic crystals changed to reveal increased polarization. Our analysis shows that the crystal orientation of piezoelectric ceramics is impacted by the residual compressive stress that arises from embedding the piezoelectric fiber in the aluminum matrix; it also illustrates the hindering effect of residual stress on the polarization of piezoelectric ceramics.

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Microstructural, tribological and compression behaviour of Copper matrix reinforced with Graphite-SiC hybrid composites

Cited by 74 publications

References 31 publications

Characterization of mechanical and tribological properties of graphite and alumina reinforced zinc alloy (ZA-27) hybrid metal matrix composites

Characterization of mechanical and tribological properties of graphite and alumina reinforced zinc alloy (ZA-27) hybrid metal matrix composites

Evaluation of Mechanical and Tribological Aspect of Self-Lubricating Cu-6Gr Composites Reinforced with SiC–WC Hybrid Particles

Electric polarization and crystal orientation of lead zirconate titanate under mechanical stress due to embedding in a metal matrix

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