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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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High-energy ball milling of Al2O3–TiO2 powders
Journal of Alloys and Compounds, 2007High-energy ball milling of Al2O3–13 wt% TiO2 and Al2O3–44 wt% TiO2 powders have been studied and more precisely the effect of the addition of a milling agent and the relative speed of the vials. The evolution of the microstructure of the milled powders has been studied by X-ray diffraction and the evolution of the specific surface areas has been ...
S. Coste +5 more
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Nanostructured Fe obtained by high-energy ball milling
Journal of Magnetism and Magnetic Materials, 2006Abstract A detailed microstructural study of nanocrystalline Fe powder samples, obtained by mechanical attrition, was carried out by X-ray diffraction experiments as a function of the milling time. During the process, the exchange energy between the vessels, balls and Fe powders leads to a change of the Fe microstructure: in particular, a significant
D. Martínez-Blanco +2 more
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Synthesis of Cu–W Nanocomposite by High-Energy Ball Milling
Journal of Nanoscience and Nanotechnology, 2007The Cu-W bulk nanocomposites of different compositions were successfully synthesized by high-energy ball milling of elemental powders. The nanocrystalline nature of the Cu-W composite powder is confirmed by X-ray diffraction analysis, transmission electron microscopy, and atomic force microscopy.
T, Venugopal, K Prasad, Rao, B S, Murty
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Properties of High-Energy Ball-Milled Fe–Se Based Superconductors
Journal of Nanoscience and Nanotechnology, 2012We have synthesized FeSe0.5Te0.5 superconductors by high-energy ball-milling and subsequent annealing. High-energy ball-milling of elemental powder mixtures resulted in the formation of metastable and/or nanocrystalline phases. Both XRD and DSC results show that the ball-milled powers were completely transformed to FeSe0.5Te0.5 with the grain size of a
Jung-Ho, Ahn, , Sangjun-Oh
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Preparation of Starch Nanoparticles via High-Energy Ball Milling
Journal of Nano Research, 2016Nano-sized starch particles were prepared from potato starch via high-energy ball milling, which is a purely physical method. Scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, and viscometer were used to analyze the morphology and characteristics of the as ...
Hua Lin, Li Zhao Qin, He Hong, Qing Li
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