Results 271 to 280 of about 80,916 (306)
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High-energy ball-milling-induced non-equilibrium phase transformations
Materials Science and Engineering: A, 1997Abstract α-Fe powder has been ball milled in an anhydrous atmosphere at two different temperatures (room temperature and 200 °C). The composition and structure of milled samples were investigated using X-ray diffraction, Mossbauer spectroscopy, combustion analysis, and thermal analysis.
Y. Chen, J.S. Williams
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Mathematical Modeling of High Energy Ball Milling (HEBM) Process
Defect and Diffusion Forum, 2014In the present study the modeling of the HEBM process is presented. The impact velocity, impact angle, rotation speed, mass of balls, ball-to-powder weight ratio and time of milling have been taken into account in order to calculate the energy transferred from the balls to the powder.
Maya Radune +5 more
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Characterization of High-Energy Ball Milling of Ba Hexaferrite
Materials Science Forum, 2003Ba-hexaferrites was synthesized by using high-energy ball milling process and particle size, densification and microstructure were characterized. BaFe 12 O 19 phase was prepared from barium carbonate and iron oxide using ball to powder ratio of 10:1 and 4:1, milled for 1 and 5 hours. Pellets were sintered from 1000 to 1300 °C.
P.I. Paulin Filho, R.R. Corrêa
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High Energy Ball-milling of Hydrogen Titanate Nanotubes
2009Properties of TiO2 nanostructures have been intensively studied because of the large potential of their possible applications in solar cells, electronics, sensing, photocatalysis as a catalyst support and as new material for mesoporous ion exchange. Titanate nanotubes are particularly interesting because of their large aspect ratio, and large specific ...
Gajović, Andreja +3 more
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Response of Lanthanide Sesquioxides to High‐Energy Ball Milling
Advanced Engineering MaterialsSesquioxides (M2O3) exhibit rich polymorphism with distinct phases that form over broad compositional, pressure, and temperature ranges. This makes these materials an ideal model system for studying the effects of high‐energy ball milling and the far‐from‐equilibrium conditions induced by complex mechanical interactions.
Eric C. O’Quinn +7 more
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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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Consolidation of High-Energy Ball Milled Nanocrystalline Al Powders
2017High-energy ball milling (HEBM) of Al and Al based alloys results in the nanocrystalline alloys in the form of powder, which subsequently needs to be consolidated for engineering applications, as well as for the investigation of associated properties. Consolidation of HEBM nanocrystalline alloy powders is not a trivial task.
Rajeev Kumar Gupta +2 more
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High Energy Ball Milled Nanocrystalline ZnO Varistors
Journal of Metastable and Nanocrystalline Materials, 2000Houshang Alamdari +4 more
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Mössbauer spectroscopic evaluation of high-energy ball-milled CdFe2O4
Journal of Magnetism and Magnetic Materials, 2003Abstract Structural and magnetic changes in cadmium ferrite, CdFe2O4, as induced by high-energy ball-milling were investigated by Mossbauer spectroscopy. Upon milling the average crystallite size was gradually reduced to the nanometer range. The size reduction was associated with a significant increase in the inversion parameter of the spinel ...
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Spontaneous exchange bias in high energy ball milled MnBi alloys
Journal of Magnetism and Magnetic Materials, 2022N. S. Anuraag +4 more
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