• Investigation of the Modulated Magnetic Phase of HoMo 6 S 8 , J. W. Lynn, R. Pynn, J. Joffrin, J. L. Ragazzoni and R. N. Shelton, Phys. (nist.gov)
  • 211. H. Koochaki Kelardeh, V. Apalkov, and M. I. Stockman, Graphene Superlattices in Strong Circularly Polarized Fields: Chirality, Berry Phase, and Attosecond Dynamics , Phys. (gsu.edu)
  • The kinetics of phase separation in Fe-Cr alloys under irradiation is modeled by Atomistic kinetic Monte Carlo simulations that include the formation, migration and elimination of vacancies and self-interstitials at point defects sinks. (hal.science)
  • The irradiation is found to accelerate the kinetics of phase separation by orders of magnitude, with an acceleration factor given by the increase in point defect concentrations. (hal.science)
  • Kinetics of joint ordering and decomposition in binary alloys. (mpg.de)
  • Baumketner A., Shea J.-E., and Hiwatari Y. Improved theoretical description of protein folding kinetics from rotations in the phase space of relevant order parameters. (lviv.ua)
  • Spin Glass-Ferromagnetic Phase Transition in Amorphous (Fe x Ni 1-x ) .75 P .16 B .06 Al .03 , J. W. Lynn, R. W. Erwin, J. J. Rhyne and H. S. Chen, J. Appl. (nist.gov)
  • Tight-binding simulation of transition-metal alloys. (icams.de)
  • When the fluctuations of the parent phase alone lead to transition, the process is called homogeneous nucleation. (phasefield.hu)
  • Advanced Problems of Phase Transition Theory. (lviv.ua)
  • Many evolution equations from physics, like those for diffusion of dissolved substances or for phase separation in alloys, describe processes in which a system tries to reach the minimum of its energy (or the like) as quickly as possible. (discretization.de)
  • In this study, a combination of physical and chemical separation processes was used to recover the metallic components of red mud. (researchgate.net)
  • Principles of fluid mechanics and physical separation processes are introduced. (uaeu.ac.ae)
  • Bryk T., Mryglod I. Kinetic relaxing processes in collective dynamics of liquid metals. (lviv.ua)
  • The evolution of the sink density is modeled by cluster dynamics, and taken into account in the Monte Carlo simulations by a rescaling of the time. (hal.science)
  • This will involve a suite of simulations exploring the dynamics of subduction over Earth's history, and its effect on fluid systems. (edu.au)
  • Figure 7: Dynamics and coarsening behaviour in the simulations. (nature.com)
  • We then apply the method to a study of unstable stacking fault (USF) energies in the binary Mo-Nb alloy and use Monte Carlo simulations to quantify the average USF energy as a function of temperature and composition. (nature.com)
  • Molecular dynamics (MD) simulations are applied to study solute drag by curvature-driven grain boundaries (GBs) in Cu-Ag solid solution. (mdpi.com)
  • We demonstrate the method on crystal structure identification in Lennard-Jones (four different phases), water (eight different phases), and mesophase (six different phases) systems. (osti.gov)
  • Bryk T., Mryglod I. Longitudinal dynamics in a Lennard-Jones binary liquid: Crossover from hydrodynamics to the molecular regime. (lviv.ua)
  • Another set of colloid studies aboard station is the Binary Colloidal Alloy/Aggregation Test, or BCAT investigation. (nasa.gov)
  • When a binary solution is cooled sufficiently, phase separation may occur and then proceed in two ways: either nucleation, in which nuclei of the second phase appear randomly and grow, or, in the so-called spinodal decomposition, the whole solution appears to nucleate at once and then periodic or semi-periodic structures appear. (springeropen.com)
  • We apply the approach to explore the composition and temperature dependence of the unstable stacking fault energy (USF) in binary Mo-Nb alloys. (nature.com)
  • The Allen-Cahn equation is a second-order nonlinear PDE which has been the focus of many applications spanning a wide range of fields, such as in material science where it was first introduced to model the phase separation of two metallic alloys, and in biology to study population dynamics, just to name a few. (sc.edu)
  • Bryk T., Mryglod I. Collective excitations and generalized transport coefficients in a molten metallic alloy Li 4Pb. (lviv.ua)
  • Competing mechanisms for precipitate coarsening in phase separation with vacancy dynamics. (mpg.de)
  • We also show that the intricate interplay between force generation, coarsening and connectivity is responsible for the highly dynamic process of structure formation in this heterogeneous active gel, and that these competing mechanisms result in anomalous transport, reminiscent of intracellular dynamics. (nature.com)
  • The formalism is broadly applicable to arbitrary crystal structures and alloy chemistries and will enable the development of rigorous models for deformation mechanisms in high-entropy alloys. (nature.com)
  • The first order phase transitions, like freezing of liquids, melting of solids, phase separation in alloys, vapor condensation, etc., start with nucleation, a process in which internal fluctuations of the parent phase lead to formation of small seeds of the new phase. (phasefield.hu)
  • J. Lapin, A. Klimová: Design, processing and properties of cast TiAl + Ti3Al matrix in-situ composites reinforced with MAX phase particles. (sav.sk)
  • J. Lapin: Cast TiAl matrix in-situ composites reinforced with MAX phase particles. (sav.sk)
  • J. Lapin: Microstructure evolution in TiAl-based alloys during directional solidification (J. Lapin, Z. Gabalcová, A. Klimová, R. P. Mooney, S. McFadden). (sav.sk)
  • We have worked on determining the magnetic structures and the nature of the phase transitions in a wide variety of materials. (nist.gov)
  • Neutron Scattering Studies of Phase Transitions in Superconductors, J. W. Lynn, J. Less Comm. (nist.gov)
  • We show examples of purely entropic fluid-fluid transitions that precede crystallization, just as liquid-liquid phase separation precedes crystallization in tetrahedrally bonded molecular liquids and in protein solutions. (ucsb.edu)
  • Derzhko O. Quantum phase transitions in alternating transverse Ising chains. (lviv.ua)
  • Microscopic model for directional coarsening of precipitates in alloys under external load. (mpg.de)
  • Quantum cooperative effects and quasiparticle dynamics in the basic microscopic models of quantum theory of magnetism: the Heisenberg model, the Hubbard model, the Anderson Model, and the spin-fermion model are considered in the framework of novel self-consistent-field approximation. (pdf-archive.com)
  • History of physical cosmology - history of the study of the largest-scale structures and dynamics of the universe and is concerned with fundamental questions about its formation and evolution. (wikipedia.org)
  • Colloidal quasicrystals, clathrate structures, and structures with large and complex unit cells typically associated with metal alloys, can all self-assemble from a disordered phase of identical particles due solely to entropy maximization. (ucsb.edu)
  • The method is applicable to heterogeneous nucleation and it can even predict the crystal phases of atoms near external interfaces. (osti.gov)
  • We review recent advances made in modeling heteroepitaxy, two-step nucleation, and nucleation at the growth front within the framework of a simple dynamical density functional theory, the Phase-Field Crystal (PFC) model. (phasefield.hu)
  • Models that are able to link the properties of a dislocation to the degree of long-range and short-range chemical ordering in multicomponent alloys are therefore necessary to provide fundamental insights about the role of chemistry on mechanical properties. (nature.com)
  • We extend the cluster expansion formalism of alloy theory to describe the energy of displacing and cleaving two halves of a crystal relative to each other as a function of descriptors of the degree of chemical order. (nature.com)
  • We introduce the notion of a "configurationally-resolved planar fault" (CRPF) energy and extend the cluster expansion method from alloy theory to express the CRPF as a function of chemical occupation variables of sites surrounding the fault. (nature.com)
  • Evaluation of tissue response to dental alloys by subcutaneous implantation. (cdc.gov)
  • P. Švec: Structure-property relationship in rapidly quenched alloys correlated with melt precursor processing. (sav.sk)
  • Druchok M., Holovko M., Bryk T. A molecular dynamics study of Al 3+ in water: hydrolysis effects. (lviv.ua)
  • Results obtained with diffusive dynamics (applicable to colloids) and with a hydrodynamic extension of the PFC theory (HPFC, developed for simple liquids) will be compared. (phasefield.hu)
  • Derzhko O., Verkholyak T. Effects of Dzyaloshinskii-Moriya interaction in the dynamics of s=1/2 XX chain. (lviv.ua)
  • Also before docking, Yurchikhin activated and verified proper operation of the Russian TEKh-15/DAKON-M IZGIB ("Bend") experiment in the SM for taking structural dynamics data during the Progress spacecraft docking. (nasa.gov)
  • Here we develop an approach to quantify the dependence of generalized stacking fault energies on the degree of chemical disorder in multicomponent alloys. (nature.com)
  • Here, we develop a method that rigorously captures the dependence of the GSF energy on the degree of ordering in multicomponent alloys. (nature.com)
  • Our study shows that the GSF energy of the Mo-Nb alloy has both a strong composition and temperature dependence. (nature.com)
  • Low magnetic properties of iron minerals resulted in insignificant separation of iron from other components in the non-carbothermally reduced sample. (researchgate.net)
  • We compare two versions of the phase-field theory for polycrystalline solidification, both relying on the concept of orientation fields: one by Kobayashi et al. (phasefield.hu)
  • In this talk, we show how entropy alone can produce order and complexity beyond that previously imagined, both in colloidal crystal structure as well as in the kinetic pathways connecting fluid and crystal phases. (ucsb.edu)
  • Putting it in another way, to form the bulk new phase, the system needs to pass a thermodynamic barrier via thermal fluctuations. (phasefield.hu)
  • yet, the counterintuitive notion that particles with no interactions other than excluded volume might self-assemble from a fluid phase into an ordered crystal has been known since the mid-20th century. (ucsb.edu)
  • Usually, the parent phase resides in a container and/or it incorporates floating heterogeneities (solid particles, droplets, etc. (phasefield.hu)
  • Early stages of precipitate rafting in a single crystal Ni-Al-Mo model alloy investigated by small-angle X-ray scattering and TEM. (mpg.de)
  • Infoscitex and Columbia University propose to develop an automated blood component separation system that can quickly and automatically separate blood into three components for the US Army to use under field conditions. (sbir.gov)
  • Designing shape-memory Heusler alloys from first-principles. (icams.de)