Modeling and Analysis of High-Energy Ball Milling Through Attritors

Zhao, Xuzhe; Shaw, Leon L.

doi:10.1007/s11661-017-4195-6

Cited by 9 publications

(4 citation statements)

References 36 publications

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“…In the past, various attempts have been made in this direction for the most widespread ball milling devices (Burgio et al, 1991;Abdellaoui and Gaffet, 1995;Courtney, 1996;Magini et al, 1996;Feng et al, 2004;Cleary et al, 2006;Sinnott et al, 2006;Boschetto et al, 2013;Broseghini et al, 2016;Zhao and Shaw, 2017). The dynamics of milling balls in the SPEX Mixer/Mill 8,000 device have also been studied in detail within a deterministic framework (Watanabe et al, 1995;Delogu et al, 1998;Concas et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Controlling Nonlinear Dynamics of Milling Bodies in Mechanochemical Devices Driven by Pendular Forcing

et al. 2022

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Understanding the dynamics of milling bodies is key to optimize the mixing and the transfer of mechanical energy in mechanochemical processing. In this work, we present a comparative study of mechanochemical reactors driven by harmonic pendular forcing and characterized by different geometries of the lateral borders. We show that the shape of the reactor bases, either flat or curved, along with the size of the milling body and the elasticity of the collisions, represents relevant parameters that govern the dynamical regimes within the system and can control the transition from periodic to chaotic behaviors. We single out possible criteria to preserve target dynamical scenarios when the size of the milling body is changed, by adapting the relative extent of the spatial domain. This allows us to modulate the average energy of the collisions while maintaining the same dynamics and paves the way for a unifying framework to control the dynamical response in different experimental conditions. We finally explore the dynamical and energetic impact of an increasingly asymmetric mechanical force.

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Section: Introductionmentioning

confidence: 99%

Controlling Nonlinear Dynamics of Milling Bodies in Mechanochemical Devices Driven by Pendular Forcing

et al. 2022

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“…These ball milling parameters include milling ball size, milling velocity, duration, and temperature. [ 117,118 ] Additionally, mechanical properties of particles, depending on types of metal oxide, should be taken into consideration for tuning of ball milling parameters. Mechanical milling technique holds significant merit due to its readily commercial implementation, yet with its drawback of low control on product crystallinity.…”

Section: Types Of Metal Oxide Semiconductormentioning

confidence: 99%

State‐of‐the‐Art Advances, Development, and Challenges of Metal Oxide Semiconductor Nanomaterials for Photothermal Solar Steam Generation

Tan

Yap

Zheng

et al. 2022

Advanced Sustainable Systems

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Solar steam generation has drawn high levels of attention from the research community in recent years due to its wide application and abundantly available energy source—sunlight. To the best of the author's knowledge, a specialized overview of photothermal semiconductor solar steam generation has not been conducted to date. In this review, the recently reported solar evaporators using metal oxide semiconductors as the photoabsorber material are investigated, from the perspective of nanostructure, synthesis method, and installation method. A timeline sequence map is generated with the CiteSpace analysis tool to visualize the trend of metal oxide semiconductors as photoabsorbers. The nanostructure of metal oxide semiconductor is emphasized, due to its significant effect on regulating photothermal efficiency in solar steam generation. In addition, other considerations are suggested to enable a fair evaluation of future synthesized photoabsorbers, including cost, stability, reproducibility, recyclability, and regenerative ability. A brief summary of divergent application of solar steam generation is conducted to show the merits of solar steam generation, as well to provide insights for production of photoabsorbers targeted to varying usage and scenarios. Furthermore, the challenges and opportunities of metal oxide solar steam generation system are elaborated from the viewpoint of the authors, with the aim to provide useful insights for future development of photothermal solar steam generation.

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“…Due to the evident promise of bringing innovation in the fine chemical industry and enhancing its sustainability, mechanochemistry has been included among the ten technological innovations that can change our world 22 . To this aim, however, a full characterization of mechanochemical reactors and processing conditions, still fragmentary, is needed 23 – 30 , and a deeper understanding of the chemical reactivity induced by mechanical forces must be achieved. In this regard, kinetic investigations aimed at relating microscopic processes underlying mechanochemical transformations to processing variables and conditions are key to success 31 – 47 .…”

Section: Introductionmentioning

confidence: 99%

Chemical effects induced by the mechanical processing of granite powder

Sanna

Carta

Pia

et al. 2022

Sci Rep

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Starting from 1970s, the use of mechanical forces to induce chemical transformations has radically changed vast areas of metallurgy and materials science. More recently, mechanochemistry has expanded to core sectors of chemistry, showing the promise to deeply innovate chemical industry while enhancing its sustainability and competitiveness. We are still far, however, from unveiling the full potential of mechanical activation. This study marks a step forward in this direction focusing on the chemical effects induced on the surrounding gaseous phase by the mechanical processing of granite. We show that fracturing granite blocks in oxygen can result in the generation of ozone. The refinement of coarse granite particles and the friction between fine ones are also effective in this regard. Combining experimental evidence related to the crushing of large granite samples by uniaxial compression and the ball milling of coarse and fine granite powders, we develop a model that relates mechanochemical ozone generation to the surface area effectively affected by fracture and frictional events taking place during individual impacts. We also extend the investigation to gaseous phases involving methane, oxygen, benzene and water, revealing that chemical transformations occur as well.

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Modeling and Analysis of High-Energy Ball Milling Through Attritors

Cited by 9 publications

References 36 publications

Controlling Nonlinear Dynamics of Milling Bodies in Mechanochemical Devices Driven by Pendular Forcing

Controlling Nonlinear Dynamics of Milling Bodies in Mechanochemical Devices Driven by Pendular Forcing

State‐of‐the‐Art Advances, Development, and Challenges of Metal Oxide Semiconductor Nanomaterials for Photothermal Solar Steam Generation

Chemical effects induced by the mechanical processing of granite powder

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