Influence of nano-diamond content on the microstructure, mechanical and thermal properties of the ZK60 composites

Hai, Ma; Wang, Jinhui; Wang, Hongyu; Dong, Ningning; Zhang, Junwei; Jin, Peipeng; Peng, Yong

doi:10.1016/j.jma.2021.03.034

Cited by 37 publications

(14 citation statements)

References 35 publications

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“…The introduction of ND led to a decrease in the average grain size to 90 ± 17 μm (Figure 2d) and a more uniform grain distribution in the magnesium alloy. This may indicate the introduction of ND into the magnesium alloy, which is able to inhibit grain growth during solidification and is an effective grain refine for magnesium materials [45]. Ultrasonic treatment of the melt decreased the average grain size of the Mg-Ca-Zn alloy from 180 ± 49 to 110 ± 64 μm (Figure 2f), but the grain size varies over a wide range from 3 to 200 μm.…”

Section: Resultsmentioning

confidence: 99%

Study of the Effect of Diamond Nanoparticles on the Structure and Mechanical Properties of the Medical Mg–Ca–Zn Magnesium Alloy

Khrustalyov

Akhmadieva

Monogenov

et al. 2022

Metals

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The paper addresses the production and investigation of the Mg–Ca–Zn alloy dispersion-hardened by diamond nanoparticles. Structural studies have shown that diamond nanoparticles have a modifying effect and make it possible to reduce the average grain size of the magnesium alloy. Reduction of the grain size and introduction of particles into the magnesium matrix increased the yield strength, tensile strength, and ductility of the magnesium alloy as compared to the original alloy after vibration and ultrasonic treatment. The magnesium alloy containing diamond nanoparticles showed the most uniform fracture due to a more uniform deformation of the alloy with particles, which simultaneously increased its strength and ductility.

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Section: Resultsmentioning

confidence: 99%

Study of the Effect of Diamond Nanoparticles on the Structure and Mechanical Properties of the Medical Mg–Ca–Zn Magnesium Alloy

Khrustalyov

Akhmadieva

Monogenov

et al. 2022

Metals

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“…The implantation of diamond particles in a copper matrix enables the interface in defining the composite's heat conductivity, CTE, and mechanical characteristics. A good interface should have strong adhesion and a low thermal boundary resistance [3]. Powder metallurgical processes are often used to create copper/diamond composites.…”

Section: Introductionmentioning

confidence: 99%

Tribological, mechanical and thermal response of diamond micro-particles reinforced copper matrix composites fabricated by powder metallurgy

Poulose

Selvakumar

Philip³

et al. 2023

Mater. Res. Express

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Copper/Diamond composites have gained a lot of attention in recent years due to their excellent thermal conductivity and their potential for use in high-power electronic devices. The current work targets on an experimental investigation of the tribological,mechanical, and thermal behaviour of copper diamond composite by using reinforced micro-diamond particles. Copper matrix composites with varying weight percentages of diamond particles were produced with the aid of the powder metallurgy. The wear tests were carried out on Pin-on-Disc wear test machine as per ASTM G99. The doping of an optimum amount of diamond particles (1% wt.) improved the overall wear performance by 51% under a normal load of 80 N. The doping had also showed a significant improvement in hardness by 26% and thermal conductivity by 1 %. The primary wear mechanisms of Cu-Diamond composites appear to be a combination of brittle fracture, fragmentation of diamond-reinforced particles and ploughing in the Cu-alloy matrix.

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“…The D has great potential for application in many fields because of its ultrahigh hardness, ultrahigh Young's modulus, high thermal conductivity, lower thermal expansion coefficient and low friction coefficient. [1][2][3] Therefore, using D as reinforcement has the advantage of improving the mechanical properties, thermal conductivity and wear resistance of composites. [4][5][6] D reinforced metal matrix composites, in particular, are frequently used in cutting tools, wear-resistant coatings, and electronic packaging materials.…”

Section: Introductionmentioning

confidence: 99%

Effect of Chlorine Salts on TiC Coating Morphology and Bonding Strength of Diamond Surface in Molten Salt Reaction

Meng

Huang

2023

Cryst. Res. Technol.

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To obtain a high‐quality TiC coating on the diamond (D) surface and improve the interfacial properties of metal matrix composites, the optimized molten salt method is used to prepare TiC coatings on the D surface. The effects of NaCl, KCl, and NaCl–KCl molten salts on the uniformity, surface morphology, composition, and bonding ability of TiC coatings are investigated by scanning electron microscopy, energy‐dispersive X‐ray spectroscopy (EDS), X‐ray diffraction, and cold–hot cycling experiments. The results show that the boiling and pickling processes after the molten salt reaction can effectively remove the residual chloride salts and Ti powders to obtain clean TiC‐coated D. The TiC particles of the coating surfaces prepared by NaCl and KCl molten salts are finer and more uniform, which is due to their higher melting points and shorter real reaction time compared with NaCl–KCl mixed salts. The TiC coating prepared by KCl has the best bonding ability and can withstand 50 times as many cold–hot cycles due to its uniform fine deposition particles and appropriate thickness. And, during cold–hot cycles, it can be found that the TiC coating cracking and shedding occur primarily at the edges and corners of the D with internal thermal stress concentration.

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Influence of nano-diamond content on the microstructure, mechanical and thermal properties of the ZK60 composites

Cited by 37 publications

References 35 publications

Study of the Effect of Diamond Nanoparticles on the Structure and Mechanical Properties of the Medical Mg–Ca–Zn Magnesium Alloy

Study of the Effect of Diamond Nanoparticles on the Structure and Mechanical Properties of the Medical Mg–Ca–Zn Magnesium Alloy

Tribological, mechanical and thermal response of diamond micro-particles reinforced copper matrix composites fabricated by powder metallurgy

Effect of Chlorine Salts on TiC Coating Morphology and Bonding Strength of Diamond Surface in Molten Salt Reaction

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