Results 251 to 260 of about 79,951 (308)

Transformations in oxides induced by high-energy ball-milling

Dalton Transactions, 2012
This paper, by no means exhaustive, focuses on high-energy ball-milling of oxides, on their mechanically induced changes and on the consequences of such changes on their physical and chemical properties. High-energy ball-milling offers a fortunate combination of technical simplicity and of complexity both of physical mechanisms which act during milling
Šepelák, Vladimir, Bégin-Colin, Sylvie, Le Caër, Gérard   +2 more
openaire   +4 more sources

Iron nanoparticles produced by high-energy ball milling

Journal of Nanoparticle Research, 2007
In this investigation, the chemical and structural characteristics of Fe nanoparticles synthesized by high-energy ball milling have been explored. After the milling process the nanoparticles were collected using a magnetic field. The structure, morphology and composition of the powders were obtained using high-resolution electron microscopy.
Jorge E. Muñoz, Janeth Cervantes, Rodrigo Esparza, Gerardo Rosas   +3 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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.
openaire   +1 more source

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
openaire   +1 more source

High-Capacity High-Energy Ball Mill for Nanophase Materials

1994
A 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, Paolo Matteazzi, Fabio Miani   +2 more
openaire   +1 more source