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Precipitation hardening, which relies on a high density of intermetallic precipitates, is a commonly utilized technique for strengthening structural alloys. Structural alloys are commonly strengthened through a high density of small size…

材料科学 · 物理学 2018-05-29 Sourabh B Kadambi , Srikanth Patala

The shape of a liquid-air interface advancing on a heterogeneous surface was studied experimentally, together with the force induced by the pinning of the contact line to surface defects. Different surfaces were considered with circular…

材料科学 · 物理学 2022-03-22 Solomon S. Melides , Dominic Vella , Marco Ramaioli

Density functional theory calculations have been performed to study the structures and energetics of coherent and semicoherent TiC/Fe interfaces. A systematic method for determining the interfacial energy for the semicoherent interface with…

材料科学 · 物理学 2018-04-10 Song Lu , John Ågren , Levente Vitos

The Fe-Cu system has attracted much attention over the last several decades due to its technological importance as a model alloy for Cu steels. In spite of these efforts several aspects of its phase diagram remain unexplained. Here we use…

材料科学 · 物理学 2013-11-20 Paul Erhart , Jaime Marian , Babak Sadigh

We study the dependence of the surface tension of a fluid interface on the density profile of a third suspended phase. By means of an approximated model for the binary mixture and of a perturbative approach we derive close formulas for the…

统计力学 · 物理学 2021-02-03 Alessio Squarcini , Paolo Malgaretti

We present a time-resolved experimental study of the temperature effect on the coherence of traveling polariton condensates. The simultaneous detection of their emission both in real- and reciprocal-space allows us to fully monitor the…

介观与纳米尺度物理 · 物理学 2020-04-23 E. Rozas , M. D. Martín , C. Tejedor , L. Viña , G. Deligeorgis , Z. Hatzopoulos , P. G. Savvidis

Hypothesis Roughening transitions at solid-liquid interfaces govern crystal morphology in diverse systems. In ice crystallization, these transitions control interfacial faceting and surface kinetics. Faceted morphologies are often…

材料科学 · 物理学 2025-08-26 Jorge H. Melillo , Ido Braslavsky

Using classical molecular dynamics simulations, we study austenite to ferrite phase transformation in iron, focusing on the role of interface morphology. We compare two different morphologies; a \textit{flat} interface in which the two…

材料科学 · 物理学 2022-09-07 Pawan Kumar Tripathi , Shivraj Karewar , Yu-Chieh Lo , Somnath Bhowmick

Boundary conditions for the solid-liquid interface of the solidifying pure melt have been derived. In the derivation the model of Gibbs interface is used. The boundary conditions include both the state quantities of bulk phases are taken at…

材料科学 · 物理学 2016-11-02 Gennady Buchbinder , Peter Galenko

Concrete subjected to combined compressive stresses and temperature loading exhibits compressive strains, which are considerably greater than for concrete subjected to compressive stresses alone. This phenomenon is called transient thermal…

材料科学 · 物理学 2009-11-02 Peter Grassl , Chris J. Pearce

Critical wetting is an elusive phenomenon for solid-fluid interfaces. Using interfacial models we show that the diverging length scales, which characterize complete wetting at an apex, precisely mimic critical wetting with the apex angle…

统计力学 · 物理学 2009-11-07 A. O. Parry , M. J. Greenall , J. M. Romero-Enrique

We experimentally address the importance of tuning in athermal phase transitions, which are triggered only by a slowly varying external field acting as tuning parameter. Using higher order statistics of fluctuations, a singular critical…

无序系统与神经网络 · 物理学 2009-01-24 U. Chandni , Arindam Ghosh , H. S. Vijaya , S. Mohan

We present a thermodynamic theory of plane coherent solid-solid interfaces in multicomponent systems subject to nonhydrostatic mechanical stresses. The interstitial and substitutional chemical components are treated separately using…

材料科学 · 物理学 2013-04-02 T. Frolov , Y. Mishin

We analyze within mean-field theory as well as numerically a KPZ equation that describes nonequilibrium wetting. Both complete and critical wettitng transitions were found and characterized in detail. For one-dimensional substrates the…

统计力学 · 物理学 2009-11-10 F. de los Santos , M. M. Telo da Gama , M. A. Munoz

The finite solid-liquid interface width in phase field models results in non-equilibrium effects, including solute trapping. Prior phase field modeling has shown that this extra degree of freedom, when compared to sharp-interface models,…

材料科学 · 物理学 2023-04-07 Arnab Mukherjee , James A. Warren , Peter W. Voorhees

The $\alpha/\beta$ interface is central to the microstructure and mechanical properties of titanium alloys. We investigate the structure, thermodynamics and migration of the coherent and semicoherent Ti $\alpha/\beta$ interfaces as a…

材料科学 · 物理学 2023-12-11 Siqi Wang , Tongqi Wen , Jian Han , David J. Srolovitz

Phase field theory is widely used to model multi-phase flows. A drop can shrink or grow spontaneously due to the redistribution of interface and bulk energies to minimize the system energy. In this paper, the spontaneous behaviour of a drop…

流体动力学 · 物理学 2019-12-18 Chunhua Zhang , Zhaoli Guo

Wind turbines operate in the atmospheric boundary layer, where they are exposed to the turbulent atmospheric flows. As the response time of wind turbine is typically in the range of seconds, they are affected by the small scale intermittent…

Low-temperature dynamics of flux lines in high temperature, type II, superconductors in the presence of correlated disorder in the form of columnar defects is discussed. The effect of tilting the applied magnetic field with respect to the…

超导电性 · 物理学 2009-10-28 N. Shnerb

The thermodynamics of phase transitions between phases that are size-mismatched but coherent differs from conventional stress-free thermodynamics. Most notably, in open systems such phase transitions are always associated with hysteresis.…

材料科学 · 物理学 2022-04-26 J. Magnus Rahm , Joakim Löfgren , Paul Erhart