Results 71 to 80 of about 117,842 (299)

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel, Lara Kuhr, Khemais Barienti, Sebastian Herbst, Florian Nürnberger, Hans Jürgen Maier, Marc C. Wurz   +6 more
wiley   +1 more source

Homogeneous nucleation of dislocations [PDF]

Physics of the Solid State, 2011
The mechanism and stochastic properties of the homogeneous nucleation of dislocations have been studied. An approach has been proposed for determining the nucleation rate based on consideration of the lifetimes of a metastable state. Primary data have been obtained using the molecular dynamics method. The dependences of the nucleation rate on the shear
G. E. Norman, A. V. Yanilkin
openaire   +3 more sources

Parameterization of homogeneous ice nucleation for cloud and climate models based on classical nucleation theory [PDF]

Atmospheric Chemistry and Physics, 2012
A new analytical parameterization of homogeneous ice nucleation is developed based on extended classical nucleation theory including new equations for the critical radii of the ice germs, free energies and nucleation rates as simultaneous functions of ...
V. I. Khvorostyanov, J. A. Curry
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Efficiency of immersion mode ice nucleation on surrogates of mineral dust [PDF]

Atmospheric Chemistry and Physics, 2007
A differential scanning calorimeter (DSC) was used to explore heterogeneous ice nucleation of emulsified aqueous suspensions of two Arizona test dust (ATD) samples with particle diameters of nominally 0–3 and 0–7 μm, respectively ...
C. Marcolli, S. Gedamke, T. Peter, B. Zobrist   +3 more
doaj  

Effect of gravity wave temperature fluctuations on homogeneous ice nucleation in the tropical tropopause layer [PDF]

Atmospheric Chemistry and Physics, 2016
The impact of high-frequency fluctuations of temperature on homogeneous nucleation of ice crystals in the vicinity of the tropical tropopause is investigated using a bin microphysics scheme for air parcels.
T. Dinh, A. Podglajen, A. Hertzog, B. Legras, R. Plougonven   +4 more
doaj   +1 more source

Understanding Homogeneous Nucleation in Solidification of Aluminum by Molecular Dynamics Simulations [PDF]

, 2017
Homogeneous nucleation from aluminum (Al) melt was investigated by million-atom molecular dynamics (MD) simulations utilizing the second nearest neighbor modified embedded atom method (MEAM) potentials.
Baskes, Michael I., Mahata, Avik, Zaeem, Mohsen Asle   +2 more
core   +3 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Prior heterogeneous ice nucleation events shape homogeneous freezing during the evolution of synoptic cirrus [PDF]

Atmospheric Chemistry and Physics
In situ observations are currently used to classify synoptic cirrus as formed by homogeneous or heterogeneous ice nucleation based on ice residual analysis.
K. Juurikkala, K. Juurikkala, C. J. Williamson, C. J. Williamson, K. D. Froyd, K. D. Froyd, J. Dean-Day, A. Laaksonen, A. Laaksonen   +8 more
doaj   +1 more source

Supercooling of rapidly expanding quark-gluon plasma [PDF]

, 1998
We reexamine the scenario of homogeneous nucleation of the quark-gluon plasma produced in ultra-relativistic heavy ion collisions. A generalization of the standard nucleation theory to rapidly expanding system is proposed.
Bravina, L. V., Csernai, L. P., Greiner, W., Stöcker, H., Zabrodin, E. E.   +4 more
core   +2 more sources