Results 271 to 280 of about 79,950 (307)

Reduced graphene oxide synthesis by high energy ball milling

Materials Chemistry and Physics, 2015
Abstract Graphene oxide is transformed to reduced graphene oxide by high energy ball milling in inert atmosphere. The process of ball milling introduces defects and removes oxygen functional groups, thereby creating the possibility of fine tuning the band gap of all intermediate stages of the structural evolution.
O. Mondal, S. Mitra, M. Pal, A. Datta, S. Dhara, D. Chakravorty   +5 more
openaire   +1 more source

Bulk Nanocrystalline Cu Produced by High-Energy Ball Milling

Materials Science Forum, 2011
The preparation, mechanical properties, grain size and thermal property of bulk nanocrystalline Cu (BNC-Cu) were investigated in this paper. BNC-Cu can be produced by in situ consolidation of pure Cu powder with high-energy ball milling at room temperature; the average grain sizes of Cu samples decreased with the increasing of ball milling time before ...
Cai Ju Li, Xin Kun Zhu, Jing Mei Tao, H.L. Tang, T.L. Chen   +4 more
openaire   +1 more source

Preparation of MgTiO3 ceramics by high energy ball milling

Journal of Wuhan University of Technology-Mater. Sci. Ed., 2006
MgTiO3 precursor was mechanochemically synthesized by high-energy ball milling of MgO and TiO2. The sintering characteristic of the resulted MgTiO3 precursor was investigated. The experimental results indicate that particles of both MgO and TiO2 powders become smaller rapidly, and then the crystalline structures of MgO and TiO2 change significantly ...
Tao Zhendong, Zhang Ying, Yang Zhongxi, Wang Yingzi, Meng Shanshan, Teng Tieli   +5 more
openaire   +1 more source

High-energy ball-milling-induced non-equilibrium phase transformations

Materials Science and Engineering: A, 1997
Abstract 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
openaire   +1 more source

Mathematical Modeling of High Energy Ball Milling (HEBM) Process

Defect and Diffusion Forum, 2014
In 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, A. Radune, Svetlana Lugovskoy, M. Zinigrad, David Fuks, N. Frage   +5 more
openaire   +1 more source

Characterization of High-Energy Ball Milling of Ba Hexaferrite

Materials Science Forum, 2003
Ba-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
openaire   +1 more source

High Energy Ball-milling of Hydrogen Titanate Nanotubes

2009
Properties 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, Iveković, Damir, Plodinec, Milivoj, Friščić, Ivica   +3 more
openaire   +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

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

Consolidation of High-Energy Ball Milled Nanocrystalline Al Powders

2017
High-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, B. S. Murty, Nick Birbilis   +2 more
openaire   +1 more source