The effect of ball to powder ratio on the processing of a novel Mo-Cu-Al2O3 composite

Petho, D; Kurusta, Tamás; Kristály, Ferenc; Mikó, Tamás; Gácsi, Zoltán

doi:10.1016/j.ijrmhm.2021.105657

Cited by 7 publications

(2 citation statements)

References 45 publications

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“…Compared with the method of external addition of Al 2 O 3 particles, the internal in situ generation method has exhibited the several advantages. Firstly, Al 2 O 3 particles generated during the in situ reaction process are ultra-fine or nano sized, which can effectively improve the binding property between Al 2 O 3 particles and Cu matrix [ 23 ]. Secondly, Al 2 O 3 particles are synthesized in Cu matrix, which can render an even distribution of these particles in Cu matrix [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Preparing and Wear-Resisting Property of Al2O3/Cu Composite Material Enhanced Using Novel In Situ Generated Al2O3 Nanoparticles

et al. 2023

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Al2O3/Cu composite material (ACCM) are highly suitable for various advanced applications owing to its excellent properties. In the present work, a combination of the solution combustion synthesis and hydrogen reduction method was first employed to prepare Al2O3/Cu composite powder (ACCP), and subsequently ACCM was prepared by employing spark plasma sintering (SPS) technique. The effect of Al2O3 contents and SPS temperatures on the properties (relative density, hardness, friction coefficient, and electrical conductivity, et al.) of ACCM were investigated in detail. The results indicated that ACCM was very dense, and microstructure was consisted of fine Al2O3 particles evenly distributed in the Cu matrix. With the increase of SPS temperature, the relative density and hardness of ACCM had first increased and then decreased. At 775 °C, the relative density and hardness had attained the maximum values of 98.19% and 121.4 HV, respectively. With the increase of Al2O3 content, although the relative density of ACCM had gradually decreased, nevertheless, its friction coefficient had increased. Moreover, with the increase of Al2O3 contents, the hardness of ACCM first increased and then decreased, and reached the maximum value (121.4 HV) with 3 wt.% addition. On the contrary, the wear rate of ACCM had first decreased and then increased with the increase of Al2O3 contents, and attained the minimum (2.32 × 10−5 mm3/(N.m)) with 3 wt.% addition.

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Section: Introductionmentioning

confidence: 99%

Preparing and Wear-Resisting Property of Al2O3/Cu Composite Material Enhanced Using Novel In Situ Generated Al2O3 Nanoparticles

et al. 2023

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“…Copper matrix composite possess excellent properties, including good thermal-electrical conductivity, high mechanical strength, and corrosion [8]. As reinforcement materials, many powder particles, such as SiC (silicon carbide) [9], Al 2 O 3 (aluminium oxide) [10], WC (tungsten carbide) [11], B 4 C (boron carbide) [12], Ti (titanium) [13], TiC (titanium carbide) [14], and TiB 2 (titanium diboride) [3] are used. Akbarpour and Alipour [15], fabricated copper composites reinforced with SiC nanoparticles and studied their wear and friction behaviour under dry sliding conditions.…”

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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Preparation and performances of molybdenum‑copper alloy with additions of tungsten, nickel, iron and cerium dioxide

Zhang,

Zhang

2024

International Journal of Refractory Metals and Hard Materials

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The effect of ball to powder ratio on the processing of a novel Mo-Cu-Al2O3 composite

Cited by 7 publications

References 45 publications

Preparing and Wear-Resisting Property of Al2O3/Cu Composite Material Enhanced Using Novel In Situ Generated Al2O3 Nanoparticles

Preparing and Wear-Resisting Property of Al2O3/Cu Composite Material Enhanced Using Novel In Situ Generated Al2O3 Nanoparticles

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

Preparation and performances of molybdenum‑copper alloy with additions of tungsten, nickel, iron and cerium dioxide

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