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milling 7

ball milling 3

High energy ball milling 2

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Ball milling promoted direct liquefaction of lignocellulosic biomass in supercritical ethanol

Chunyan Yang, Xiaoliang Yuan, Xueting Wang, Kejing Wu, Yingying Liu, Changjun Liu, Houfang Lu, Bin Liang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 605-613 doi: 10.1007/s11705-019-1841-0

Abstract: In the present work, ball milling was applied for the pretreatment of lignocellulose to obtain high conversionBall milling substantially decreased the crystallinity and particle size of lignocellulose, thereby improvingAn increased bio-oil yield of 59.2% was obtained for the ball milled camphorwood sawdust at 300°C, compared

Keywords： ball milling     lignocellulose     supercritical ethanol     liquefaction     bio-oil    

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Erratum to: One-step ball milling-prepared nano Fe

Xingguo Guo, Qiuying Wang, Ting Xu, Kajia Wei, Mengxi Yin, Peng Liang, Xia Huang, Xiaoyuan Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 4, doi: 10.1007/s11783-020-1258-5

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Augmented hydrogen production by gasification of ball milled polyethylene with Ca(OH)

Giovanni Cagnetta, Kunlun Zhang, Qiwu Zhang, Jun Huang, Gang Yu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1096-5

Abstract:

PE ball milling pretreatment induces higher H2 production

Keywords： Hydrogen production     Gasification     Plastic waste     High energy ball milling    

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One-step ball milling-prepared nano Fe

Xingguo Guo, Qiuying Wang, Ting Xu, Kajia Wei, Mengxi Yin, Peng Liang, Xia Huang, Xiaoyuan Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1209-1

Abstract: • Nano Fe2O3 and N-doped graphene was prepared via a one-step ball milling method. • The maximum powerHere, novel Fe-N-doped graphene is successfully synthesized via a one-step in situ ball milling methodPristine graphite, ball milling graphene, N-doped graphene and Fe-N-doped graphene are applied in air

Keywords： Microbial fuel cells     Air cathodes     Nano Fe2O3 and nitrogen-doped graphene     Oxygen reduction reaction    

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characterization of nanocrystalline ZrO2-7%Y2O3 powders for thermal barrier coatings by high-energy ballmilling

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 176-181 doi: 10.1007/s11465-011-0220-4

Abstract:

High-energy ball milling is an effective method to produce nanocrystalline oxides.In this study, a conventional ZrO2-7%Y2O3spray powder was ball-milledThe milling time was varied in order to investigate the effect of the milling time on the crystallitemilling.Ball-milling led to lattice microstrains.

Keywords： nanostrucured powders     yttria stabilized zirconia (YSZ)     high-energy ball milling     thermal barrier coatings    

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Solvent-free mechanochemical mild oxidation method to enhance adsorption properties of chitosan

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1416-4

Abstract:

• Solvent-free chitosan oxidation is obtained by rapid mechanochemical reaction.

Keywords： Chitosan     High energy ball milling     Mechanochemistry     Oxidation    

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Precursor-driven structural tailoring of iron oxychloride for enhanced heterogeneous Fenton activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1533-1543 doi: 10.1007/s11705-023-2330-z

Abstract: The synthesized products could be systematically tuned by the ball-milling conditions of the αWith increased milling time, the FeOCl crystallites demonstrated reduced sizes and more exposed (110)Specifically, FeOCl catalysts with a 12-hour milling time showed nearly 39 times higher efficiency toward

Keywords： FeOCl     mechanical activation     heterogeneous Fenton reaction     ball milling    

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Events and reaction mechanisms during the synthesis of an Al

M. ABDELLAHI, M. ZAKERI, H. BAHMANPOUR

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 123-129 doi: 10.1007/s11705-013-1325-6

Abstract: An Al O -TiB nanocomposite was successfully synthesized by the high energy ball milling of Al, B OThe composite started to form at milling times of 9–10 h but the reaction was not complete.The remaining starting materials were consumed by increasing the milling time to 15 h.Increasing the milling time to 15 h led to a refining of the crystallite sizes.A nanocomposite powder with a mean crystallite size of 35–40 nm was obtained after milling for 15 h.

Keywords： ball milling     nanocomposite     Al2O3     TiB2    

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Efficient Nanostructuring of Isotropic Gas-Atomized MnAl Powder by Rapid Milling (30 s) Article

J. Rial, E.M. Palmero, A. Bollero

Engineering 2020, Volume 6, Issue 2,   Pages 172-176 doi: 10.1016/j.eng.2019.03.013

Abstract:

An unprecedentedly short milling time of 30 s was applied to gas-atomized MnAl powder in order toThe defects resulting from the microstrain induced during milling, together with the creation of theA coercivity as high as 4.2 kOe (1 Oe = 79.6 A·m-1 ) was obtained after milling (30s) and annealing, which is comparable to values previously reported in the literature for milling times

Keywords： Permanent magnets (PMs)     Nanostructuring     Phase transformation     MnAl     Gas atomization     Ball milling    

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Mechanochemical-Assisted Leaching of Lamp Phosphors: A Green Engineering Approach for Rare-Earth Recovery Article

Steff Van Loy, Koen Binnemans, Tom Van Gerven

Engineering 2018, Volume 4, Issue 3,   Pages 398-405 doi: 10.1016/j.eng.2018.05.015

Abstract:

Rare-earth elements (REEs) are essential metals for the design and development of sustainable energy applications. Recycling these elements from waste streams enriched in them is crucial for securing an independent future supply for sustainable applications. This study compares the mechanisms of mechanical activation prior to a hydrometallurgical acid-leaching process and a solvometallurgical mechanochemical leaching process for the recovery of REEs from green lamp phosphor, LaPO4:Ce3+, Tb3+. After 60 min of processing time, the REE leaching rates showed a significant enhancement of 60% after cycled mechanical activation, and 98% after the combined mechanochemical leaching process. High-resolution transmission electron microscopy (HR-TEM) imaging disclosed the cause for the improved REE leaching rates: The improved leaching and leaching patterns could be attributed to changes in the crystal morphology from monocrystalline to polycrystalline. Reduction of the crystallite size to the nanoscale in a polycrystalline material creates irregular packing of chemical units, resulting in an increase in defect-rich grain boundaries in the crystals, which enhances the leaching process. A solvometallurgical method was developed to combine the mechanical activation and leaching process into a single step, which is beneficial for operational cost. This results in an efficient and simple process that provides an alternative and greener recycling route for lamp phosphor waste.

Keywords： Mechanochemistry     Rare-earth elements     Lamp phosphor waste     Ball-milling     Solvometallurgy    

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Energy field-assisted high-speed dry milling green machining technology for difficult-to-machine metal

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0744-9

Abstract: High-speed dry milling has emerged as a typical green processing technology due to its high processingHowever, the lack of necessary cooling and lubrication in high-speed dry milling makes it difficult tomeet the continuous milling requirements for difficult-to-machine metal materials.In this review, the characteristics and limitations of high-speed dry milling of difficult-to-machineFinally, the shortcomings and technical challenges of energy-field-assisted milling are summarized in

Keywords： difficult-to-machine metal material     green machining     high-speed dry milling     laser energy field-assistedmilling     ultrasonic energy field-assisted milling     cryogenic minimum quantity lubrication energy field-assistedmilling    

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Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0680-8

Abstract: Milling and grinding arise as the preferred choices because of their precision processing.summarizes an up-to-date progress of the damage formation mechanisms and suppression strategies in millingFirst, the formation mechanisms of milling damage, including delamination, burr, and tear, are analyzed

Keywords： milling     grinding     fiber-reinforced composites     damage formation mechanism     delamination     material removal    

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Cutting Force Model for a Small-diameter Helical Milling Cutter

LI Xiwen, YANG Shuzi, YANG Mingjin, XIE Shouyong

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 272-277 doi: 10.1007/s11465-007-0047-1

Abstract: In the milling process, the major flank wear land area (two-dimensional measurement for the wear) ofa small-diameter milling cutter, as wear standard, can reflect actual changes of the wear land of theThe cutting force model for the helical milling cutter is validated by experiments.established in the research can provide a theoretical foundation for monitoring the condition of a millingprocess that uses a small-diameter helical milling cutter.

Keywords： computational     corresponding     helical milling     theoretical foundation     Characteristic    

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Position-varying surface roughness prediction method considering compensated acceleration in milling

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 855-867 doi: 10.1007/s11465-021-0649-z

Abstract: Machined surface roughness will affect parts’ service performance. Thus, predicting it in the machining is important to avoid rejects. Surface roughness will be affected by system position dependent vibration even under constant parameter with certain toolpath processing in the finishing. Aiming at surface roughness prediction in the machining process, this paper proposes a position-varying surface roughness prediction method based on compensated acceleration by using regression analysis. To reduce the stochastic error of measuring the machined surface profile height, the surface area is repeatedly measured three times, and Pauta criterion is adopted to eliminate abnormal points. The actual vibration state at any processing position is obtained through the single-point monitoring acceleration compensation model. Seven acceleration features are extracted, and valley, which has the highest R-square proving the effectiveness of the filtering features, is selected as the input of the prediction model by mutual information coefficients. Finally, by comparing the measured and predicted surface roughness curves, they have the same trends, with the average error of 16.28% and the minimum error of 0.16%. Moreover, the prediction curve matches and agrees well with the actual surface state, which verifies the accuracy and reliability of the model.

Keywords： surface roughness prediction     compensated acceleration     milling     thin-walled workpiece    

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Bioleaching of copper from pre and post thermally activated low grade chalcopyrite contained ball mill

Sandeep PANDA, Nilotpala PRADHAN, Umaballav MOHAPATRA, Sandeep K. PANDA, Swagat S. RATH, Danda S. RAO, Bansi D. NAYAK, Lala B. SUKLA, Barada K. MISHRA

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 281-293 doi: 10.1007/s11783-013-0484-5

Abstract: Bioleaching of a low grade chalcopyrite (ball mill spillage material) was tested for copper recovery

Keywords： ball mill spillage     thermal activation     bioleaching     copper    

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Title Author Date Type Operation

Ball milling promoted direct liquefaction of lignocellulosic biomass in supercritical ethanol

Chunyan Yang, Xiaoliang Yuan, Xueting Wang, Kejing Wu, Yingying Liu, Changjun Liu, Houfang Lu, Bin Liang

Journal Article

Erratum to: One-step ball milling-prepared nano Fe

Xingguo Guo, Qiuying Wang, Ting Xu, Kajia Wei, Mengxi Yin, Peng Liang, Xia Huang, Xiaoyuan Zhang

Journal Article

Augmented hydrogen production by gasification of ball milled polyethylene with Ca(OH)

Giovanni Cagnetta, Kunlun Zhang, Qiwu Zhang, Jun Huang, Gang Yu

Journal Article

One-step ball milling-prepared nano Fe

Xingguo Guo, Qiuying Wang, Ting Xu, Kajia Wei, Mengxi Yin, Peng Liang, Xia Huang, Xiaoyuan Zhang

Journal Article

characterization of nanocrystalline ZrO2-7%Y2O3 powders for thermal barrier coatings by high-energy ballmilling

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA

Journal Article

Solvent-free mechanochemical mild oxidation method to enhance adsorption properties of chitosan

Journal Article

Precursor-driven structural tailoring of iron oxychloride for enhanced heterogeneous Fenton activity

Journal Article

Events and reaction mechanisms during the synthesis of an Al

M. ABDELLAHI, M. ZAKERI, H. BAHMANPOUR

Journal Article

Efficient Nanostructuring of Isotropic Gas-Atomized MnAl Powder by Rapid Milling (30 s)

J. Rial, E.M. Palmero, A. Bollero

Journal Article

Mechanochemical-Assisted Leaching of Lamp Phosphors: A Green Engineering Approach for Rare-Earth Recovery

Steff Van Loy, Koen Binnemans, Tom Van Gerven

Journal Article

Energy field-assisted high-speed dry milling green machining technology for difficult-to-machine metal

Journal Article

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Journal Article

Cutting Force Model for a Small-diameter Helical Milling Cutter

LI Xiwen, YANG Shuzi, YANG Mingjin, XIE Shouyong

Journal Article

Position-varying surface roughness prediction method considering compensated acceleration in milling

Journal Article

Bioleaching of copper from pre and post thermally activated low grade chalcopyrite contained ball mill

Sandeep PANDA, Nilotpala PRADHAN, Umaballav MOHAPATRA, Sandeep K. PANDA, Swagat S. RATH, Danda S. RAO, Bansi D. NAYAK, Lala B. SUKLA, Barada K. MISHRA

Journal Article