Results 51 to 60 of about 102,971 (296)

Stochastic Yield Catastrophes and Robustness in Self-Assembly [PDF]

, 2020
A guiding principle in self-assembly is that, for high production yield, nucleation of structures must be significantly slower than their growth. However, details of the mechanism that impedes nucleation are broadly considered irrelevant.
Frey, Erwin, Gartner, Florian M., Geiger, Philipp M., Graf, Isabella R., Wilke, Patrick   +4 more
core   +2 more sources

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Heterogeneous Nucleation Mechanism of Potassium Iodide on Graphene Surface in Water

Crystals
In this work, molecular dynamic (MD) simulations are applied to investigate the heterogeneous nucleation mechanism of KI on a graphene surface in water.
Yan-Nan Chen, Yu-Zhen Liu, Qiang Sun
doaj   +1 more source

Ice nucleation from aqueous NaCl droplets with and without marine diatoms [PDF]

Atmospheric Chemistry and Physics, 2011
Ice formation in the atmosphere by homogeneous and heterogeneous nucleation is one of the least understood processes in cloud microphysics and climate. Here we describe our investigation of the marine environment as a potential source of atmospheric IN ...
P. A. Alpert, J. Y. Aller, D. A. Knopf
doaj   +1 more source

Heterogeneous Crystal Nucleation from the Melt in Polyethylene Oxide Droplets on Graphite: Kinetics and Microscopic Structure

Crystals, 2021
It is well known that the crystallization of liquids often initiates at interfaces to foreign solid surfaces. In this study, using polarized light optical microscopy, atomic force microscopy (AFM), and wide-angle X-ray scattering (WAXS), we investigate ...
Muhammad Tariq, Thomas Thurn-Albrecht, Oleksandr Dolynchuk   +2 more
doaj   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Phase-field approach to heterogeneous nucleation

, 2002
We consider the problem of heterogeneous nucleation and growth. The system is described by a phase field model in which the temperature is included through thermal noise.
A. A. Wheeler, A. E. Kolmogorov, A. E. Lobkovsky, A. Karma, A. Roy, B. Nestler, C. Castellano, C. W. Price, H. J. Frost, H.-J. Jou, I. Steinbach, J. B. Collins, J. D. Gunton, J. Olivares, J. S. Im, K. R. Elder, K. R. Elder, K. R. Elder, M. Avrami, M. C. Weinberg, M. Castro, M. Castro, M. Dubé, M. Grant, M. Karttunen, Mario Castro, P. C. Hohenberg, R. A. Ramos, R. Becker, R. Bergmann, R. D. Doherty, R. Folch, R. Folch, R. Kobayashi, R. Kobayashi, R. Kobayashi, R. W. Cahn, V. G. Karpov, V. G. Karpov, W. A. Johnson, X. Y. Liu, Y. Enomoto, Y. Uemoto, Ya. B. Zeldovich   +43 more
core   +1 more source

Hydrodynamic theory of freezing: Nucleation and polycrystalline growth [PDF]

, 2017
Structural aspects of crystal nucleation in undercooled liquids are explored using a nonlinear hydrodynamic theory of crystallization proposed recently [G. I. Toth et al., J. Phys.: Condens.
Granasy, Laszlo, Podmaniczky, Frigyes, Tegze, Gyorgy, Toth, Gyula I.   +3 more
core   +3 more sources

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

A molecular dynamics study of heterogeneous nucleation in generic liquid/substrate systems with positive lattice misfit

Materials Research Express, 2020
Nucleation plays a critical role in many natural and technological processes, and nucleation control requires detailed understanding of nucleation process at atomic level.
Z Fan, H Men
doaj   +1 more source