Results 91 to 100 of about 249,451 (349)

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

[X/Fe] Marks the Spot: Mapping Chemical Azimuthal Variations in the Galactic Disk with APOGEE

The Astrophysical Journal
Chemical cartography of the Galactic disk provides insights into its structure and assembly history over cosmic time. In this work, we use chemical cartography to explore chemical gradients and azimuthal substructure in the Milky Way disk with giant ...
Zoe Hackshaw, Keith Hawkins, Carrie Filion, Danny Horta, Chervin F. P. Laporte, Christopher Carr, Adrian M. Price-Whelan   +6 more
doaj   +1 more source

The Effects of Diffuse Ionized Gas and Spatial Resolution on Metallicity Gradients: TYPHOON Two-Dimensional Spectrophotometry of M83

, 2019
We present a systematic study of the diffuse ionized gas (DIG) in M83 and its effects on the measurement of metallicity gradients at varying resolution scales.
D'Agostino, Joshua J., Groves, Brent, Ho, I-Ting, Kewley, Lisa, Madore, Barry F., Poetrodjojo, Henry, Rich, Jeff, Seibert, Mark   +7 more
core   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

The Metallicity Dependence of PAH Emission in Galaxies. I. Insights from Deep Radial Spitzer Spectroscopy

The Astrophysical Journal
We use deep Spitzer mid-infrared spectroscopic maps of radial strips across three nearby galaxies with well-studied metallicity gradients (M101, NGC 628, and NGC 2403) to explore the physical origins of the observed deficit of polycyclic aromatic ...
Cory M. Whitcomb, J.-D. T. Smith, Karin Sandstrom, Carl A. Starkey, Grant P. Donnelly, Bruce T. Draine, Evan D. Skillman, Daniel A. Dale, Lee Armus, Brandon S. Hensley, Thomas S.-Y. Lai, Robert C. Kennicutt   +11 more
doaj   +1 more source

Short Lifetime of Protoplanetary Disks in Low-metallicity Environments

, 2010
We studied near-infrared disk fractions of six young clusters in the low-metallicity environments with [O/H$] \sim -0.7$ using deep $JHK$ images with Subaru 8.2\,m telescope. We found that disk fraction of the low-metallicity clusters declines rapidly in
Andrews, Briceño, Carpenter, Chini, Fischer, Gorti, Haisch, Hernández, Hollenbach, Ida, Ida, Klein, Kobayashi, Lada, Lissauer, Lubowich, Luhman, Muench, Preibisch, Rudolph, Safronov, Schneider, Sicilia-Aguilar, Sicilia-Aguilar, Suzuki, Yasui, Yasui   +26 more
core   +1 more source

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler, Serhii Yaroshevskyi, Alexander Adamczyk, Mahnaz Mehdizadehlima, Julia Richter, Cameliu Himcinschi, David Rafaja, Alexandros Charitos, Christos G. Aneziris, Jens Kortus   +9 more
wiley   +1 more source

Metallicity Structure in Galactic Longitude–Velocity Diagrams of the Milky Way Disk and FIRE-2 Simulations

The Astrophysical Journal
We investigate longitude–velocity ( ℓ – v ) diagrams as a diagnostic tool to study the metallicity structure of the Milky Way (MW) disk. The present-day metallicity structure encodes the imprint of the Galaxy’s formation, assembly, and secular evolution.
Victor Liu, Dana S. Balser, Trey V. Wenger   +2 more
doaj   +1 more source

Using multi-task learning to determine gas-phase metallicity of star-forming galaxies

Astronomy & Astrophysics
Aims. This study aimed to improve the estimation of the gas-phase metallicity of star-forming galaxies by using a multi-task learning approach that simultaneously performs gas-phase metallicity estimation and spectral classification of galaxies. Methods.
Wang Li-Li, Feng Jia-Bao, Yang Guang-Jun
doaj   +1 more source

Atomic transport in dense multicomponent metallic liquids [PDF]

, 2002
Andreas Meyer
openalex   +1 more source