Microstructure and frictional properties of copper-tin composites containing graphite and MoS2 by rapid hot-press sintering

Su, Yuanming; Jiang, Feng; Long, Mengjun; Wu, Feifei; Xiao, Zeyu; Wu, Mingjin

doi:10.1016/j.triboint.2023.108392

Cited by 20 publications

(2 citation statements)

References 26 publications

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“…For this sintering temperature, the highest values of relative density above 90%, low porosity, and a higher Young's modulus in the range (92-96%) were achieved. Increasing the sintering temperature is beneficial because a higher temperature accelerates atomic diffusion and increases the migration rate of grain boundaries, which in turn promotes a reduction of pore size and an improvement in density [56,57]. This is consistent with the results of other works [33,58,59].…”

Section: Characterisation Of Sintered Cu-zrb2 Compositessupporting

confidence: 89%

Processing and Properties of ZrB2-Copper Matrix Composites Produced by Ball Milling and Spark Plasma Sintering

Sulima,

Boczkal

2023

Materials

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Copper matrix composites with zirconium diboride (ZrB2) were synthesised by ball milling and consolidated by Spark Plasma Sintering (SPS). Characterisations of the ball-milled composite powders were performed by scanning electron microscopy (SEM), X-ray diffraction, and measurement of the particle size distribution. The effect of the sintering temperature (1123 K, 1173 K, and 1223 K) and pressure (20 MPa and 35 MPa) on the density, porosity, and Young’s modulus was investigated. The relationship between the change of Orb content and physical, mechanical, and electrical properties was studied. Experimental data showed that the properties of Cu–Orb composites depended significantly on the SPS sintering conditions. The optimal sintering temperature was 1223 K with a pressure of 35 MPa. Composites exhibited a high degree of consolidation. For these materials, the apparent density was in the range of 93–97%. The results showed that the higher content of Orb in the copper matrix was responsible for the improvement in Young’s modulus and hardness with the reduction of the conductivity of sintered composites. The results showed that Young’s modulus and the hardness of the Cu 20% Orb composites were the highest, and were 165 GPa and 174 HV0.3, respectively. These composites had the lowest relative electrical conductivity of 17%.

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Section: Characterisation Of Sintered Cu-zrb2 Compositessupporting

confidence: 89%

Processing and Properties of ZrB2-Copper Matrix Composites Produced by Ball Milling and Spark Plasma Sintering

Sulima,

Boczkal

2023

Materials

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“…9 The other one is adding abrasive components, such as intermetallic compounds or ceramic particles into metal matrix, and thus enhance the wear resistance by increase the surface hardness or transfer the main mechanism from adhesive to abrasive. 9 For example, Su et al 10 studied the effect of sintering temperature on the average friction coefficient and wear rate of the composite material with tin–bronze as matrix and Cu-coated graphite and Cu-coated molybdenum disulphide as solid lubricant. Results show that sintering temperature improved the interfacial bonding between Cu coating and Cu alloy matrix, the average friction coefficient of the composites increases first and then decreases, and the wear rate initially increased, then decreased, and then increased again.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and tribological property of Cu/CrB₂ composites under dry sliding condition

Guo,

Jia,

et al. 2024

Materials Science and Technology

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Dry sliding friction and wear test of Cu/CrB2 composites manufactured by ex situ method was studied, and the mechanical properties were also measured to assistant analysis wear behaviour. When CrB2 content is 3 vol.-%, both the mechanical and tribological properties reach the maximum values, viz., 113 HV, 304 MPa and 9.1 × 10−5 mm3 N−1 m−1 of the normal load is 10 N, higher 71.2%, 33.3%, lower 52.8% than that of pure Cu, respectively, which can be ascribed to the increase of hardness and the transfer of main wear mechanisms of Cu matrix from adhesive to abrasive wear by the addition of CrB2. Further increase CrB2 content to above 5 vol.-%, wear resistance would decreases since the pulled out of CrB2 particles.

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Microstructure, mechanical and tribological properties of Cu-Sn/Cr3C2/Gr composites

Liang,

Jiang,

Zhang

et al. 2023

Composite Structures

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Microstructure and frictional properties of copper-tin composites containing graphite and MoS2 by rapid hot-press sintering

Cited by 20 publications

References 26 publications

Processing and Properties of ZrB2-Copper Matrix Composites Produced by Ball Milling and Spark Plasma Sintering

Processing and Properties of ZrB2-Copper Matrix Composites Produced by Ball Milling and Spark Plasma Sintering

Mechanical and tribological property of Cu/CrB₂ composites under dry sliding condition

Microstructure, mechanical and tribological properties of Cu-Sn/Cr3C2/Gr composites

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Microstructure and frictional properties of copper-tin composites containing graphite and MoS2 by rapid hot-press sintering

Cited by 20 publications

References 26 publications

Processing and Properties of ZrB2-Copper Matrix Composites Produced by Ball Milling and Spark Plasma Sintering

Processing and Properties of ZrB2-Copper Matrix Composites Produced by Ball Milling and Spark Plasma Sintering

Mechanical and tribological property of Cu/CrB2 composites under dry sliding condition

Microstructure, mechanical and tribological properties of Cu-Sn/Cr3C2/Gr composites

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Product

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Mechanical and tribological property of Cu/CrB₂ composites under dry sliding condition