Results 251 to 260 of about 80,916 (306)

High-Energy Ball-Milling of Alloys and Compounds

Hyperfine Interactions, 2002
After outlining some characteristics of high-energy ball-milling, we discuss selected examples of phase transformation and of alloy synthesis which focus on deviations from archetypal behaviours and throw light on the milling mechanisms. Some contributions of Mossbauer spectrometry to the characterization of ground materials are described.
G. Le Caër, P. Delcroix, S. Bégin-Colin, T. Ziller   +3 more
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Decomposition of intermetallics during high-energy ball-milling

Materials Science and Engineering: A, 2007
The decomposition behavior of FeSn, CoSn and CoIn2 intermetallics under high-energy ball-milling has been investigated using X-ray diffraction, calorimetric and magnetization measurements. Upon milling a large amount of the FeSn intermetallic decomposes into Fe5Sn3 and FeSn2, where the average grain size of the product phases stays nearly constant with
Y.S. Kwon, P.P. Choi, J.S. Kim, D.H. Kwon, K.B. Gerasimov   +4 more
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Nickel Silicides Synthesized by High Energy Ball Milling

Key Engineering Materials, 2007
The high energy ball milling of Ni-50 atom % Si elemental powder mixtures was carried out using a planetary mill. X-ray diffraction (XRD) was used to identify the phase evolutions during the high energy ball milling period. The microstructure morphology of the powders milled different time was determined by field emission scanning electron microscope ...
Gen Shun Ji, Qin Ma, Tie Ming Guo, Qi Zhou, Jian Gang Jia, Xin Guo, Xue Ding Chen   +6 more
openaire   +1 more source

High-energy ball milling of nonstoichiometric compounds

Uspekhi Fizicheskih Nauk, 2019
Abstract 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, 2001
High-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, 2005
Cordierite 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, Hee Gon Bang, Sang Yeup Park   +2 more
openaire   +1 more source

Hydrogenation of TiFe by high-energy ball milling

Journal of Alloys and Compounds, 2000
The 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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Nanocrystalline metals prepared by high-energy ball milling

Metallurgical Transactions A, 1990
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 ...
H. J. Fecht, E. Hellstern, Z. Fu, W. L. Johnson   +3 more
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Platinum Alloy Catalysts by High Energy Ball-Milling

ECS Meeting Abstracts, 2010
Abstract not Available.
Jason Ma, Samad Firdosy, George Grüner, Jean-Pierre Fleurial, S.R. Narayanan   +4 more
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WC platelet formation via high-energy ball mill

International Journal of Refractory Metals and Hard Materials, 2014
Abstract 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
openaire   +1 more source