Results 61 to 70 of about 14,988 (268)

Dynamics of noncohesive confined granular media

, 2016
Despite the ubiquitousness and technological and scientific importance of granular matter, our understanding is still very poor compared to molecular fluids and solids. Until today, there is no unified description, which indeed seems unreachable. However,
Mujica, Nicolas, Soto, Rodrigo
core   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

Energy flows in vibrated granular media

, 1998
We study vibrated granular media, investigating each of the three components of the energy flow: particle-particle dissipation, energy input at the vibrating wall, and particle-wall dissipation.
A. D. Rosato, A. Goldshtein, A. Goldshtein, B. Bernu, C. K. K. Lun, E. Clément, F. Melo, I. Goldhirsch, J. Lee, J. T. Jenkins, M. Müller, P. Deltour, P. K. Haff, S. Luding, S. Luding, S. Luding, S. Luding, S. McNamara, S. McNamara, S. McNamara, S. Warr, Sean McNamara, Stefan Luding, V. Kumaran   +23 more
core   +1 more source

Contact dynamics in a gently vibrated granular pile [PDF]

, 2003
We use multi-speckle diffusive wave spectroscopy (MSDWS) to probe the micron-scale dynamics of a granular pile submitted to discrete gentle taps. The typical time-scale between plastic events is found to increase dramatically with the number of applied ...
A. Knaebel, Alexandre Kabla, C. Lesaffre, D. J. Durian, G. Maret, Georges Debrégeas, J. Desrues, J.-P. Bouchaud, K. Kim, L. Cipelletti, M. Da Silva, P. Philippe   +11 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Entropic Tightening of Vibrated Chains

, 2001
We investigate experimentally the distribution of configurations of a ring with an elementary topological constraint, a ``figure-8'' twist. Using vibrated granular chains, which permit controlled preparation and direct observation of such a constraint ...
A. Belmonte, A.Yu. Grosberg, B. Duplantier, D.A. Egolf, D.W. Sumners, E. Ben-Naim, E. Ben-Naim, E. Ben-Naim, F. Mello, F. Rouyer, G. Gallavotti, H. Jaeger, H.L. Frish, J.S. Olafson, J.U. Sommer, L.P. Kadanoff, M. B. Hastings, R. E. Ecke, S.R. Quake, S.Y. Shaw, V. Katrich, Z. A. Daya   +21 more
core   +1 more source

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

Advanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov, Matheus Roberto Bellé, Anton Yehorov, Julia Richter, Olena Volkova   +4 more
wiley   +1 more source

Simulations of dense granular gases without gravity with impact-velocity-dependent restitution coefficient [PDF]

, 2007
We report two-dimensional simulations of strongly vibrated granular materials without gravity. The coefficient of restitution depends on the impact velocity between particles by taking into account both the viscoelastic and plastic deformations of ...
Andrews, Arsenović, Aumaître, Bizon, Bridges, Brilliantov, Eric Falcon, Falcon, Falcon, Falcon, Falcon, Falcon, Foerster, Goldman, Goldsmith, Haff, Hatzes, Herrmann, Hertzsch, Higa, Jenkins, Johnson, Kurtze, Kuwabara, Labous, Lan, Lifshitz, Luding, Luding, Luding, Luding, McNamara, McNamara, McNamara, Moon, Pöschel, Raman, Salo, Salueña, Schäfer, Sean McNamara, Spahn, Supulver, Tabor, Thornton, Turner   +45 more
core   +4 more sources

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Energy partition and segregation for an intruder in a vibrated granular system under gravity [PDF]

, 2005
The difference of temperatures between an impurity and the surrounding gas in an open vibrated granular system is studied. It is shown that, in spite of the high inhomogeneity of the state, the temperature ratio remains constant in the bulk of the system.
Brey, J. Javier, Moreno, F., Ruiz-Montero, M. J.   +2 more
core   +2 more sources