Results 11 to 20 of about 1,331,680 (246)

Kinetic cross coupling between non-conserved and conserved fields in phase field models [PDF]

, 2012
We present a phase field model for isothermal transformations of two component alloys that includes Onsager kinetic cross coupling between the non-conserved phase field and the conserved concentration field.
Efim A. Brener, G. Boussinot, J. C. Baker, N. Provatas, S. R. De Groot   +4 more
core   +2 more sources

Corners in phase-field theory [PDF]

Physical Review E, 2021
Phase-field models for strongly anisotropic surface energy need to be regularized to remove the ill posedness of the dynamic equations. Regularization introduces a new length scale, the corner size, also called the bending length. For large corner size, with respect to interface thickness, the phase-field method is known to converge asymptotically ...
openaire   +3 more sources

A phase-field model for cohesive fracture [PDF]

, 2013
In this paper, a phase-field model for cohesive fracture is developed. After casting the cohesive zone approach in an energetic framework, which is suitable for incorporation in phase-field approaches, the phase-field approach to brittle fracture is ...
Auricchio, Belytschko, Borden, Borst, Borst, Borst, Borst, Bourdin, Bourdin, Bourdin, Camacho, Comi, Fleming, Francfort, Geers, Gravouil, Hofacker, Ingraffea, Miehe, Miehe, Moës, Moës, Mumford, Ngo, Peerlings, Pijaudier-Cabot, Rashid, Remmers, Wells, Xu   +29 more
core   +2 more sources

Three-Dimensional Icosahedral Phase Field Quasicrystal [PDF]

Physical Review Letters, 2016
We investigate the formation and stability of icosahedral quasicrystalline structures using a dynamic phase field crystal model. Nonlinear interactions between density waves at two length scales stabilize three-dimensional quasicrystals. We determine the phase diagram and parameter values required for the quasicrystal to be the global minimum free ...
Subramanian, P, Archer, AJ, Knobloch, E, Rucklidge, AM   +3 more
openaire   +4 more sources

Phase-field modeling droplet dynamics with soluble surfactants [PDF]

, 2010
Using lattice Boltzmann approach, a phase-field model is proposed for simulating droplet motion with soluble surfactants. The model can recover the Langmuir and Frumkin adsorption isotherms in equilibrium.
Liu, H., Zhang, Y.H.
core   +1 more source

Phase-field-crystal model for fcc ordering

, 2010
We develop and analyze a two-mode phase-field-crystal model to describe fcc ordering. The model is formulated by coupling two different sets of crystal density waves corresponding to and reciprocal lattice vectors, which are chosen to form triads so as
Adland, Ari, Karma, Alain, Wu, Kuo-An
core   +1 more source

Quantum Phase Field

, 2023
AbstractIn this chapter a new paradigm for the understanding of the physical world is developed based on phase-field type non-linear wave solutions. Two 1-dimensional wave fronts, right- and left-moving are combined to define the doubloon, the basic element of mass and space. The interface energy of a standard phase field defines the mass of elementary
Ingo Steinbach, Hesham Salama
openaire   +1 more source

Eutectic colony formation: A phase field study

, 2001
Eutectic two-phase cells, also known as eutectic colonies, are commonly observed during the solidification of ternary alloys when the composition is close to a binary eutectic valley.
A. Karma, A. Karma, A. Karma, A. Karma, A.A. Wheeler, A.A. Wheeler, A.A. Wheeler, Alain Karma, B. Caroli, B. Nestler, C. Zener, D.G. McCartney, H.W. Weart, J. Tiaden, J.A. Warren, J.B. Bullock, J.B. Collins, J.D. Hunt, J.E. Gruzleski, J.E. Gruzleski, J.P. Chilton, J.S. Langer, J.W. Cahn, K. Brattkus, K.A. Jackson, K.R. Elder, M. Ginibre, M. Hillert, M. Plapp, M. Plapp, M. Plapp, M.D. Rinaldi, M.J. Aziz, Mathis Plapp, N. Provatas, N. Provatas, P. Kopczyński, P.K. Rohatgi, R.F. Almgren, R.W. Kraft, S. Akamatsu, S. Akamatsu, S. Akamatsu, T.S. Lo, V. Datye, W.H. Brandt, W.M. Rumball, W.W. Mullins, Y.-J. Chen   +48 more
core   +2 more sources

Phase-field approach for faceted solidification [PDF]

Physical Review E, 2003
We extend the phase-field approach to model the solidification of faceted materials. Our approach consists of using an approximate gamma-plot with rounded cusps that can approach arbitrarily closely the true gamma-plot with sharp cusps that correspond to faceted orientations.
Debierre, J-M, Karma, Alain, Celestini, Franck, Guerin, R.   +3 more
openaire   +4 more sources

Improving the Evaluation and Management of Transfusion‐Related Iron Overload in Children, Adolescents, and Young Adults Following Cancer Treatment or Hematopoietic Stem Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Transfusion‐related iron overload (TRIO) is a late effect of therapy impacting survivors of childhood cancer and hematopoietic stem cell transplantation (HSCT) who receive frequent packed red blood cell (pRBC) transfusions. Surprisingly, there are no accepted guidelines to assist providers in identifying and treating at‐risk ...
Luke Gingell, Allison Close, Guoli Zhou, Troy C. Quigg   +3 more
wiley   +1 more source