In this work, TiO 2 powders were prepared by high energy vibrating ball milling. X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Photon cross correlation spectroscopy (PCCS with Nanophox) were used to determine the crystallite size of anatase TiO 2. Depending on the grinding conditions (short grinding time, ball diameter
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Porous Nanocrystalline Alloys Prepared by High Energy Ball Milling p.1055 Microstructure Refinement of Cast Intermetallic Alloys
High-energy vibratory ball milling (Super-Misuni, Nissin Giken Co. Ltd.) was employed, with a rotational speed of 710 r.p.m., where the milling atmosphere was ambient. The powders and zirconia balls (ϕ10 mm) were charged in a stainless steel vial (ϕ100 mm), where the ball-to-powder weight ratio was 18 : 1 (18 g balls per 1 g powder) and the
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Ball-milling has been carried out at 800 rpm for 0, 1, 2, 4 and 6 h. LiMn2O4 has been prepared by means of high-energy ball-milling of Li2CO3 and MnCO3 followed by one-pot sintering. Milling
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Electrical and magnetic properties of nanocrystalline BiFeO3 prepared by high energy ball milling and microwave sintering. Prasad ChS(1), Sreenivasulu G, Kiran SR, Balasubramanian M, Murty BS. Author information: (1)Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Madras, Chennai 600036, India.
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The Improvement of the Band Gap Energy and Antibacterial Activities of CeO 2/ZnO Nanocomposites Prepared by High Energy Ball Milling Sumetha Suwanboon*[a,d], Pongsaton Amornpitoksuk [b,d] and Phuwadol Bangrak [c,e] [a] Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110
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The Improvement of the Band Gap Energy and Antibacterial Activities of CeO 2/ZnO Nanocomposites Prepared by High Energy Ball Milling Sumetha Suwanboon*[a,d], Pongsaton Amornpitoksuk [b,d] and Phuwadol Bangrak [c,e] [a] Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110
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M-type hexagonal ferrite powder was prepared by the molten salt flux method calcined at a relatively low temperature (850 °C) with a product yield of 99.87%. The synthesized sample was then milled for 3 h by high-energy ball milling in toluene suspension to obtain ultrafine nanoparticles. The structural, morphological, and magnetic properties of the particles were investigated to observe the
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High energy ball milling has been proved to be an efficient route to obtain submicron sized (50–100 nm) aluminium titanate powders, but further milling of the powders is accompanied by contamination from the milling media and the formation of hard agglomerates. C 2001 Kluwer Academic Publishers 1.
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This is a first systematic report on the synthesis of completely nanocrystalline metals by high-energy deformation processes. Pure metals with body-centered cubic (bcc) and hexagonal close-packed (hcp) structures are subjected to ball milling, resulting in a decrease of the average grain size to ≈9 nm for metals with bcc and to ≈13 nm for metals with hcp crystal structures.
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Mechanical means, such as high-energy ball milling, ultrasonic or jet milling, and others, can have powder prepared into nanoparticles. This is an example of a top-down approach, which is suitable for refractory metals or materials beyond the use of chemical reactions.
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For all nanocrystalline materials prepared by high-energy ball milling synthesis route, surface and interface contamination is a major concern. In particular, mechanical attributed contamination by the milling tools (Fe or WC) as well as ambient gas (trace impurities such as O 2 , N 2 in rare gases) can be problems for high-energy ball milling.
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In this work, oxide nanoparticles were prepared by high-energy ball milling of Ti-Cu alloys followed by a controlled oxidation process. Alloys of the Ti-Cu system Ti-50Cu, Ti-57Cu, and Ti-65Cu (in wt.%) prepared by arc melting were selected considering they provide different starting brittle intermetallic phases before milling.
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using a high-energy ball mill for the study of heat storage materials. 2. Experimental 1) Milling process: High purity (99.8%) anatase type TiO 2 (IV) powder was used in the present study. The 10 g powder sample was placed in a dry 80 ml steel cylindrical container with a high-purity steel ball in a 1200
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Polymer–nanofiller prepared by high-energy ball milling and high velocity cold compaction i.e. different energy distributions between the upper and lower parts
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The grain size was further reduced to 14 nm by milling the as-prepared ferrite particles in a high-energy ball mill. The increase in conductivity of the milled sample was, therefore, attributed to conduction by the oxygen vacancies created by mechanical milling.
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This is confirmed by the numerous results obtained in experiments on high-energy ball milling of tungsten, vanadium, niobium and tantalum carbides, titanium, vanadium, niobium oxides, and other compounds. Nanopowders prepared by high-energy ball milling are heavily deformed substances with a microstructure containing very apparent microstrains.
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Ball-milling has been carried out at 800 rpm for 0, 1, 2, 4 and 6 h. LiMn2O4 has been prepared by means of high-energy ball-milling of Li2CO3 and MnCO3 followed by one-pot sintering. Milling
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Mechanical means, such as high-energy ball milling, ultrasonic or jet milling, and others, can have powder prepared into nanoparticles. This is an example of a top-down approach, which is suitable for refractory metals or materials beyond the use of chemical reactions.
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In this present work, nanodiamond (ND) particles were successfully prepared from commercial micron diamond powder at room temperature by high energy ball milling process using an oscillatory mill (SPEX8000). The size reduction and structural evolutions of the milled samples were investigated as a function of the milling time by means of X-ray
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We prepared various nanocrystalline ceramics by high-energy ball milling. The investigated systems are the oxide ceramics Li2O, LiNbO3, LiBO2, B2O3, TiO2 as monophase materials and the composite
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The U.S. Department of Energy''s Office of Scientific and Technical Information Phonon density of states of nanocrystalline Fe prepared by high-energy ball milling.
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This is a first systematic report on the synthesis of completely nanocrystalline metals by high-energy deformation processes. Pure metals with body-centered cubic (bcc) and hexagonal close-packed (hcp) structures are subjected to ball milling, resulting in a decrease of the average grain size to ≈9 nm for metals with bcc and to ≈13 nm for metals with hcp crystal structures. This new class
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In this work, oxide nanoparticles were prepared by high-energy ball milling of Ti-Cu alloys followed by a controlled oxidation process. Alloys of the Ti-Cu system Ti-50Cu, Ti-57Cu, and Ti-65Cu (in wt.%) prepared by arc melting were selected considering they provide different starting brittle intermetallic phases before milling.
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Porous Nanocrystalline Alloys Prepared by High Energy Ball Milling p.1055 Microstructure Refinement of Cast Intermetallic Alloys
High-energy vibratory ball milling (Super-Misuni, Nissin Giken Co. Ltd.) was employed, with a rotational speed of 710 r.p.m., where the milling atmosphere was ambient. The powders and zirconia balls (ϕ10 mm) were charged in a stainless steel vial (ϕ100 mm), where the ball-to-powder weight ratio was 18 : 1 (18 g balls per 1 g powder) and the
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Hydroxyapatite/iron oxide nanocomposite prepared by high energy ball milling Milica Vuciniˇ ´c Vasi c´1,∗, Bratislav Antic´2, Marko Boškovic´2, Aleksandar Anti´c1, Jovan Blanuša2 1Faculty of Technical Sciences, University of Novi Sad, Trg D. Obradovica 6, 21000 Novi Sad, Serbia
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The grain size was further reduced to 14 nm by milling the as-prepared ferrite particles in a high-energy ball mill. The increase in conductivity of the milled sample was, therefore, attributed to conduction by the oxygen vacancies created by mechanical milling.
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Ball-milling has been carried out at 800 rpm for 0, 1, 2, 4 and 6 h. LiMn2O4 has been prepared by means of high-energy ball-milling of Li2CO3 and MnCO3 followed by one-pot sintering. Milling
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Gajdics, M. Improved H-Storage Performance of Novel Mg-Based Nanocomposites Prepared by High-Energy Ball Milling: A Review. Energies 2021, 14, 6400. https:
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Porous Nanocrystalline Alloys Prepared by High Energy Ball Milling p.1055 Microstructure Refinement of Cast Intermetallic Alloys
The microstructure of WC–10%Co nanocomposite prepared by high energy ball milling was investigated by X-ray diffraction and transmission electron microscopy. The WC phase was refined to a grain
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be prepared by mechanochemical methods if the milling process is followed by calcination at high temperature [17–19]. High-energy ball-milling was used in several works to produce nano-LN. Spex Mixer Mill 8000 is one of the most commonly used ball mills for this purpose. In general, dry grinding with one ball with a
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