Fabrication and fibre matrix interface characteristics of Cu/C(Fe) composite

Li, Y.; Bai, Pei Kang

doi:10.2298/sos0902193l

Cited by 11 publications

(5 citation statements)

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“…It was noted that the micro hardness increased according to sintering temperature. The surface of the samples on which the micro hardness values were measured was related to the density due to compacting for P/M samples, powder lubrication condition and mechanical properties of the powder [32,[42][43][44][45][46]. It can be concluded that the micro harness was directly related to density and inversely related to porosity.…”

Section: Tab Imentioning

confidence: 99%

Effect of porosity, density and temperature on microstructure and mechanical behavior of hybrid premix sponge ferrous compact

2017

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This study on hybrid premix sponge ferrous sintered materials is focused on its mechanical properties and microstructure with respect to the amount of porosity. The pressure of 430 MPa and sintering temperatures 1090?C, 1115?C, and 1130?C in a Nitrogen atmosphere for an hour is followed to produce this hybrid premix sponge ferrous compact. Radial crush strength, dimensional change and micro hardness test were performed on these samples to determine the mechanical properties. Scanning electron microscope (SEM) was used for fractured surface analysis, while light optical microscopy (LOM) is used to study the structure and pore formation. The study infers, as porosity percentage increased, tendency of irregular pore formation increased with simultaneous decrease in mechanical properties of the sample. Temperature of sintering has a vital role in decreasing the porosity of powder materials.

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Section: Tab Imentioning

confidence: 99%

Effect of porosity, density and temperature on microstructure and mechanical behavior of hybrid premix sponge ferrous compact

2017

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“…According to Li et al [58], Cu/C composites were successfully fabricated by three step electrodeposition. The effects of hot pressure temperature and alloy element Fe on the interface characteristic of Cu/C composite were investigated.…”

Section: Electrodeposition Of Copper Nanocompositesmentioning

confidence: 99%

Electrochemical Synthesis of Nanocomposites

Abdel-Karim¹

2016

Electrodeposition of Composite Materials

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Tνis cνapter presents an overview of researcν efforts focused on botν fabrication and properties of nanocomposites prepared by electrodeposition. Tνe nanoparticles can improve tνe base material in terms of wear resistance, dampinμ properties, and mecνanical strenμtν as well as electrical properties. Different kinds of matrix, sucν as metals, polymers, and ceramic matrix, νave been employed for tνe production of composites reinforced by nano-ceramic particles sucν as carbides, nitrides, and oxides as well as carbon nanotubes. Tνeoretical aspects and mecνanisms related to tνe electrodeposition process of nanocomposite films, from aqueous solutions, are discussed.

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“…MMCs show several improvements, such as lower and tailorable CTE, high heat dissipation capability, low weight, and high dimensional stabilities at an elevated temperature. More specifically, there is great interest in MMCs based on Cu with a broad range of different reinforcements [3,7,8]. Since carbon (C) reinforcements have high thermal conductivity and low thermal expansion, MMCs reinforced with C can also present good TC and CTE [4].…”

Section: Introductionmentioning

confidence: 99%

Structure and Thermal Expansion of Cu−90 vol. % Graphite Composites

Opálek

Emmer²,

Čička³

et al. 2021

Materials

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Copper–graphite composites are promising functional materials exhibiting application potential in electrical equipment and heat exchangers, due to their lower expansion coefficient and high electrical and thermal conductivities. Here, copper–graphite composites with 10–90 vol. % graphite were prepared by hot isostatic pressing, and their microstructure and coefficient of thermal expansion (CTE) were experimentally examined. The CTE decreased with increasing graphite volume fraction, from 17.8 × 10−6 K−1 for HIPed pure copper to 4.9 × 10−6 K−1 for 90 vol. % graphite. In the HIPed pure copper, the presence of cuprous oxide was detected by SEM-EDS. In contrast, Cu–graphite composites contained only a very small amount of oxygen (OHN analysis). There was only one exception, the composite with 90 vol. % graphite contained around 1.8 wt. % water absorbed inside the structure. The internal stresses in the composites were released during the first heating cycle of the CTE measurement. The permanent prolongation and shape of CTE curves were strongly affected by composition. After the release of internal stresses, the CTE curves of composites did not change any further. Finally, the modified Schapery model, including anisotropy and the clustering of graphite, was used to model the dependence of CTE on graphite volume fraction. Modeling suggested that the clustering of graphite via van der Waals bonds (out of hexagonal plane) is the most critical parameter and significantly affects the microstructure and CTE of the Cu–graphite composites when more than 30 vol. % graphite is present.

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Fabrication and fibre matrix interface characteristics of Cu/C(Fe) composite

Cited by 11 publications

References 11 publications

Effect of porosity, density and temperature on microstructure and mechanical behavior of hybrid premix sponge ferrous compact

Effect of porosity, density and temperature on microstructure and mechanical behavior of hybrid premix sponge ferrous compact

Electrochemical Synthesis of Nanocomposites

Structure and Thermal Expansion of Cu−90 vol. % Graphite Composites

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