Characterization techniques for nano particles: A practical top down approach to synthesize copper nano particles from copper chips and determination of its effect on planes

Sengottuvelu, Ramesh; Vetrivel, S.; Suresh, P.S.; Kaviarasan, Varadaraju

doi:10.1016/j.matpr.2020.01.157

Cited by 10 publications

(11 citation statements)

References 14 publications

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“…Based on the findings of previous researchers [67,94,106,147,156,160,162,182] concluded that the selection of ball mill media has a significant impact on the ball milling process, particularly when refining small particles. The choice of media is influenced by the type of raw material being processed.…”

Section: Alternative Materials For Ball Mill Jar and Ballsmentioning

confidence: 99%

Producing Metal Powder from Machining Chips Using Ball Milling Process: A Review

et al. 2023

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In the pursuit of achieving zero emissions, exploring the concept of recycling metal waste from industries and workshops (i.e., waste-free) is essential. This is because metal recycling not only helps conserve natural resources but also requires less energy as compared to the production of new products from virgin raw materials. The use of metal scrap in rapid tooling (RT) for injection molding is an interesting and viable approach. Recycling methods enable the recovery of valuable metal powders from various sources, such as electronic, industrial, and automobile scrap. Mechanical alloying is a potential opportunity for sustainable powder production as it has the capability to convert various starting materials with different initial sizes into powder particles through the ball milling process. Nevertheless, parameter factors, such as the type of ball milling, ball-to-powder ratio (BPR), rotation speed, grinding period, size and shape of the milling media, and process control agent (PCA), can influence the quality and characteristics of the metal powders produced. Despite potential drawbacks and environmental impacts, this process can still be a valuable method for recycling metals into powders. Further research is required to optimize the process. Furthermore, ball milling has been widely used in various industries, including recycling and metal mold production, to improve product properties in an environmentally friendly way. This review found that ball milling is the best tool for reducing the particle size of recycled metal chips and creating new metal powders to enhance mechanical properties and novelty for mold additive manufacturing (MAM) applications. Therefore, it is necessary to conduct further research on various parameters associated with ball milling to optimize the process of converting recycled copper chips into powder. This research will assist in attaining the highest level of efficiency and effectiveness in particle size reduction and powder quality. Lastly, this review also presents potential avenues for future research by exploring the application of RT in the ball milling technique.

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Section: Alternative Materials For Ball Mill Jar and Ballsmentioning

confidence: 99%

Producing Metal Powder from Machining Chips Using Ball Milling Process: A Review

et al. 2023

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“…In the case of nanorods or shells, the longer wavelength peak of the double peak feature is shifted with changes in length or shell thickness; however, the peak centered near the interband transition remains unchanged. 13,16 Several strategies have been explored as avenues to prepare CuNPs including bottom-up methods like hot-injection, 17 solvothermal, 18 and sol-gel 19 and top-down strategies such as ball milling 20 and laser ablation in liquid. 21 However, many of these methods present undesirable limitations.…”

Section: ■ Introductionmentioning

confidence: 99%

“…21 However, many of these methods present undesirable limitations. Top-down syntheses often produce samples with high degrees of polydispersity, 19,20 which can contribute to inhomogeneous broadening of the optical properties. Better size control is often achieved with a hot injection strategy, but high reaction temperatures are often required to achieve reduction of the copper ion precursors and nucleation.…”

Section: ■ Introductionmentioning

confidence: 99%

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Seed-Mediated Growth of Oxidation-Resistant Copper Nanoparticles

Calabro,

Burpo,

Bartolucci

et al. 2023

J. Phys. Chem. C

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Copper nanoparticles (CuNPs) are of interest due to their localized surface plasmon resonance, conductive properties, and the low cost of copper; however, achieving CuNPs with controlled sizes that are resistant to surface oxidation from the environment is still an ongoing challenge. We synthesized CuNPs with tunable sizes ranging from 20 to 80 nm based on a seed-mediated growth process using polyvinylpyrrolidone (PVP) as a stabilizing agent. This synthetic strategy offered advantages of using lower reaction temperatures, controlled particle size through tuning the reaction medium, and protection from oxidation by the PVP stabilizing agent. The PVP polymer length influenced both the CuNP optical properties and overall shape, with longer PVP allowing for better control over particle shape and size and the shorter lengths producing polydisperse particles with broader spectra. The size was further controlled through addition of acetic acid, which resulted in larger particle sizes. Wide angle X-ray scattering measurements indicated that the particles were composed of copper with no oxide present and the crystallite sizes were comparable to the overall particle size. The ultraviolet–visible extinction peak positions of the particles showed limited dependence on the overall particle size. By examining the extinction and true absorbance measurements, we determined that all CuNPs had a true absorption peak due to interband transitions at around 590 nm and peaks observed at longer wavelengths were due to scattering effects from near field coupling of the particles. Finally, the particles were shown to be resistant to oxidation and remained stable over time, which suggests that this strategy is promising for formation of large copper particles that do not oxidize.

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“…Moreover, the operation of lasers, both for growing or ablating-based techniques, can generate unwanted and/or toxic secondary products [11]. Mechanical methods, such as grinding and milling, can result in time-consuming or energy-expensive processes [12], [13]. Chemical deposition and similar bottom-up approaches allow the growth of metal nanoparticles with satisfactory control of their morphology; however, the main disadvantage lies in the ABSTRACT Metallic nanopowder is employed in several applications for its flexibility of use, thus its production is growing over the years.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis on the exploding wire process for nanopowder production: Influence of initial energy and exploding atmosphere

et al. 2023

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Metallic nanopowder is employed in several applications for its flexibility of use, thus its production is growing over the years. Exploding wire technique can produce a wide range of nanoparticles from electrically conducting samples, and it has a potential for high efficiency and productivity, due to the strongly localized power dissipation. On the other hand, the phenomena involved during the explosion are complex, and phenomenological relationships are usually considered for controlling the output product characteristics. In this study, we investigated the effect of the input energy and the medium in which the explosion takes place on the final dimensional distribution of the nanopowder. Utilizing a proper power supply and an exploding system developed on purpose, we applied up to 10 GA/m2 to copper wire samples immersed in air or water. We collected the products for morphological analysis, we carried out a shape and dimensional characterization based on a statistical analysis of the obtained particles, and we compared and discussed the results concerning the adopted initial conditions and the most recent literature data.

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Characterization techniques for nano particles: A practical top down approach to synthesize copper nano particles from copper chips and determination of its effect on planes

Cited by 10 publications

References 14 publications

Producing Metal Powder from Machining Chips Using Ball Milling Process: A Review

Producing Metal Powder from Machining Chips Using Ball Milling Process: A Review

Seed-Mediated Growth of Oxidation-Resistant Copper Nanoparticles

Experimental analysis on the exploding wire process for nanopowder production: Influence of initial energy and exploding atmosphere

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