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High-energy ball milling of nonstoichiometric compounds
Uspekhi Fizicheskih Nauk, 2019Abstract The preparation of nanocrystalline powders of nonstoichiometric compounds such as carbides and oxides by high-energy milling is considered. The modern state of milling models for nonstoichiometric compounds is described. The influence of nonstoichiometry on the particle size of the produced nanopowders is discussed. The model
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High-Energy Ball Milling of Some Intermetallics
Hyperfine Interactions, 2001High-energy ball milling of metallic powders has been used in recent years for the synthesis of alloys through reactions mainly occurring in solid state. The diffusive phenomena accompanying and promoting the reactions of formation are related to the microstructure acquired by the powders as a consequence of the intense mechanical deformations.
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Synthesis of Cordierite Using High Energy Ball Milling
Materials Science Forum, 2005Cordierite was synthesized by the reaction sintering using a high-energy ball milling process. After a high-energy ball milling for 32hr, the reaction temperature of cordierite was reduced to 1350oC from the conventional synthesis temperature of 1460oC.
Sung Jin Kim +2 more
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Hydrogenation of TiFe by high-energy ball milling
Journal of Alloys and Compounds, 2000The hydrogenation properties of TiFe, TiFe2 and pure Ti during high-energy ball milling in hydrogen atmosphere were studied. By ball milling, TiFe could absorb hydrogen without activation treatment. For Ti powder, a single phase TiH1.924 was formed.
C.-H Chiang, Z.-H Chin, T.-P Perng
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High-Capacity High-Energy Ball Mill for Nanophase Materials
1994A high-energy high-capacity ball mill, which can be easily scaled-up, for the synthesis of nanophase materials is described. The synthesis of nanophase iron carbides is shown to be feasible with the new mill for batch charges of up to 120 g in 10 h. Kinetic effects are presented.
Diego Basset +2 more
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Nanocrystalline metals prepared by high-energy ball milling
Metallurgical Transactions A, 1990This 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 ...
H. J. Fecht +3 more
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Platinum Alloy Catalysts by High Energy Ball-Milling
ECS Meeting Abstracts, 2010Abstract not Available.
Jason Ma +4 more
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WC platelet formation via high-energy ball mill
International Journal of Refractory Metals and Hard Materials, 2014Abstract This work investigates the factors affecting the morphology of WC powder. WO3–C mixtures were prepared by high-energy ball milling and nano-sized WC powder was obtained in the form of platelets with a high aspect ratio (5–20) carbothermally.
Jinmyung Kim, Shinhoo Kang
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2015
The nanocomposite magnets consisting of a coarse mixture of a hard magnetic phase with high coercivity and a soft magnetic phase with high saturation magnetization, have started being studied since already the late 80s. Since today, the need for the preparation of such nanocomposite magnets with improved properties (high coercivity and saturation ...
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The nanocomposite magnets consisting of a coarse mixture of a hard magnetic phase with high coercivity and a soft magnetic phase with high saturation magnetization, have started being studied since already the late 80s. Since today, the need for the preparation of such nanocomposite magnets with improved properties (high coercivity and saturation ...
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High Energy Planetary Ball Milling of SiC Powders
Key Engineering Materials, 2007The effects of high-energy ball milling on SiC powders were studied using a planetary apparatus. Conditions to obtain nanostructured SiC powders with an average crystallite size of 4 nm were determined and powders were characterized by XRD, SEM and TEM analyses. This process was applied to prepare fine powders leading to dense SiC ceramics by sintering
Yu Bai Pan +6 more
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