Results 261 to 270 of about 325,462 (312)
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Journal of Physics: Condensed Matter, 1997
Phases in ball milled for different lengths of time have been investigated by means of x-ray diffraction, Mossbauer spectroscopy and Raman scattering spectroscopy. It was found that the high-temperature phase can be formed by ball milling at room temperature. In the milling procedure the compounds FeSi and were also formed.
Li Tie, Li Yu-zhi, Zhang Yu-heng
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Phases in ball milled for different lengths of time have been investigated by means of x-ray diffraction, Mossbauer spectroscopy and Raman scattering spectroscopy. It was found that the high-temperature phase can be formed by ball milling at room temperature. In the milling procedure the compounds FeSi and were also formed.
Li Tie, Li Yu-zhi, Zhang Yu-heng
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Multifractal properties of ball milling dynamics
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2014This work focuses on the dynamics of a ball inside the reactor of a ball mill. We show that the distribution of collisions at the reactor walls exhibits multifractal properties in a wide region of the parameter space defining the geometrical characteristics of the reactor and the collision elasticity.
M. A. Budroni +3 more
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Dry ball milling and wet ball milling for fabricating copper–yttria composites
Rare Metals, 2018Abstract Yttria‐reinforced copper matrix composites were prepared by dry ball milling (DBM) and wet ball milling (WBM), respectively, followed by spark plasma sintering (SPS). It is to determine which milling process is better for fabricating Cu–Y 2 O 3
Fei Huang +3 more
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Mechanochemical decomposition of pentachlorophenol by ball milling
Journal of Environmental Sciences, 2009The mechanochemical dechlorination of pentachlorophenol (PCP) was studied using CaO and SiO2 powder as additives. The effects of the milling time and additives on the dechlorination rate were investigated. The resulting product was characterized by X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), thermogravimetric analysis (TG) and ...
Yinglei, Wei +3 more
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Microstructure investigations of ball milled materials
Microscopy Research and Technique, 1998HREM and FEG TEM were emphasized and extensively used to follow the most subtle changes in the structure and composition of ball-milled Cu, Fe-Cu, and thermally decomposed Fe60Cu40. Some significant results are obtained and summarized as follows: HREM shows that the deformation of ball-milled copper proceeds mainly by twinning and shear bands (SBs ...
J Y, Huang, Y K, Wu, H Q, Ye
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Process engineering with planetary ball mills
Chemical Society Reviews, 2013Planetary ball mills are well known and used for particle size reduction on laboratory and pilot scales for decades while during the last few years the application of planetary ball mills has extended to mechanochemical approaches. Processes inside planetary ball mills are complex and strongly depend on the processed material and synthesis and, thus ...
Christine Friederike, Burmeister +1 more
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Predictive model for ball mill wear
Canadian Metallurgical Quarterly, 1997Abstract Ball mills, characteristic of the mineral processing industry, are used to reduce ore from one size distribution to another. Wear is associated with comminution mechanisms found in the ball charge which in turn affects grinding performance.
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Solvent‐Free Asymmetric Organocatalysis in a Ball Mill
Angewandte Chemie, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Belén, Rodríguez +2 more
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Dilatometry of Ni3Al powder disordered by ball-milling
Intermetallics, 1995Abstract The microstructure and reordering behaviour of Ni3AI-base alloy has been studied following completion of a broader research on ordering kinetics of some intermetallic compounds. A disordered structure has been obtained in powder samples with high energy ball-milling.
Gialanella, Stefano +3 more
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