Results 281 to 290 of about 19,047,843 (335)

Structural transformations of alumina by high energy ball milling

Journal of Materials Research, 1993
Room temperature, high energy ball milling was applied to various transition aluminas (γ, K, χ), producing thermodynamically stable α-alumina–a phenomenon that could otherwise be achieved only by high temperature (1100–1200 °C) heat treatment. The transformation proceeds in two steps.
P.A. ZielińAski, R. Schulz, S. Kaliaguine, A. Van Neste   +3 more
openaire   +1 more source

Structure and properties of equiatomic CoCrFeNiMn alloy fabricated by high-energy ball milling and spark plasma sintering

Journal of Alloys and Compounds, 2019
High-entropy alloy CoCrFeNiMn was produced by short high energy ball milling (90 min) and spark plasma sintering (10 min at 1073 K). Co-existence of two fcc-phases with lattice parameters 0.360 nm and 0.356 nm was demonstrated via HRTEM, XRD and other ...
A. Rogachev, S. Vadchenko, N. A. Kochetov, S. Rouvimov, D. Kovalev, A. Shchukin, D. Moskovskikh, A. Nepapushev, A. Mukasyan   +8 more
semanticscholar   +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

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-purity disperse α-Al2O3 nanoparticles synthesized by high-energy ball milling

Advanced Powder Technology, 2018
The preparation of disperse fine equiaxed α-Al2O3 nanoparticles with narrow size distribution, high purity, and high yield is essential for producing Al2O3 nanocrystalline ceramic of fine grains which may exhibit a good toughness.
Lu Li, Sanxu Pu, Yuhang Liu, Li-Bin Zhao, Ji Ma, Jiangong Li   +5 more
semanticscholar   +1 more source

Influence of high B4C contents on structural evolution of Al-B4C nanocomposite powders produced by high energy ball milling

Ceramics International, 2019
The influence of high B4C contents on the structural evolution of Al-B4C nanocomposite powders during high energy ball milling was investigated. Al-B4C nanocomposite powders with various weight percentages of B4C particles (10, 30 and 40 wt%) were ...
Hao Guo, Yu Zhao, Songsong Xu, Jun-Peng Li, Naimeng Liu, Yang Zhang, Zhongwu Zhang   +6 more
semanticscholar   +1 more source

Amorphization of selenium induced by high-energy ball milling

Physical Review B, 1997
Structural changes occurring in the crystalline element selenium upon high-energy ball milling has been studied. Milling experiments have been performed at the ambient temperature and at a cryogenic temperature of -100 degrees C, respectively. The final milling products under both conditions were found to be a fully amorphous phase after several hours ...
G. J. Fan, F. Q. Guo, Z. Q. Hu, M. X. Quan, K. Lu   +4 more
openaire   +1 more source

Stability investigation of the γ-MgH2 phase synthesized by high-energy ball milling

International journal of hydrogen energy, 2019
Structural investigations showed that the crystal structure influences the hydrogen storage properties of MgH2. The crystal structure and dehydriding temperature of MgH2 activated by high energy ball milling under an argon atmosphere were studied.
Ntumba Lobo, A. Takasaki, K. Mineo, Alicja Klimkowicz, K. Goc   +4 more
semanticscholar   +1 more source

Response of Lanthanide Sesquioxides to High‐Energy Ball Milling

Advanced Engineering Materials
Sesquioxides (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, Alexandre P. Solomon, Casey Corbridge, Cale Overstreet, Cameron Tracy, Antonio F. Fuentes, David J. Sprouster, Maik K. Lang   +7 more
openaire   +1 more source

Decomposition and Crystallization Induced by High-Energy Ball-Milling

Solid State Phenomena, 2007
Phase transformation induced by ball-milling was studied in this work. It was found that amorphous Fe90Zr10 ribbons undergo crystallization into BCC α-Fe(Zr) under milling in an AGO-2 mill. The decomposition degree of the amorphous phase increased with increasing milling time and intensity.
Young Soon Kwon, Ji Soon Kim, Cheol Eeh Kim   +2 more
openaire   +1 more source