Results 141 to 150 of about 91,274 (346)

Development and Validation of a One‐Dimensional Finite Difference Simulation Scheme for Polymer Laser Powder Bed Fusion with Application to the Effect of the Inter Layer Time

Advanced Engineering Materials, Volume 27, Issue 14, July 2025.
The study presents an efficient simulation approach for the polymer laser powder bed fusion process polymers process, validated with polyamide 12, polyamide 6, and polyetherketoneketone. It shows that inter layer time affects part density, with 90s yielding dense parts.
Claas Bierwisch, Bastien Dietemann, Moritz Grünewald, Christian Schlör, Johannes Rudloff   +4 more
wiley   +1 more source

A Revised Density Estimate for the Largest Known Exoplanet, HAT-P-67 b

The Astronomical Journal
Low-density ( ρ _p  
Gavin Wang, William O. Balmer, Laurent Pueyo, Daniel Thorngren, Stephen P. Schmidt, Le-Chris Wang, Kevin C. Schlaufman, Guðmundur Stefánsson, Zafar Rustamkulov, David K. Sing   +9 more
doaj   +1 more source

Note on the Deviation of Stellar Atmospheres from Thermodynamic Equilibrium [PDF]

, 1929
B. P. Gerasimovi
openalex   +1 more source

Convection Currents in Stellar Atmospheres [PDF]

Proceedings of the National Academy of Sciences, 1924
Walter S. Adams, Charles E. St. John
openaire   +4 more sources

Development of Ternary Magnesium Alloys for Laser Powder Bed Fusion: Optimizing Oxide Layer Thickness

Advanced Engineering Materials, Volume 27, Issue 14, July 2025.
Additive manufacturing of magnesium alloys by laser is difficult because the melting point of the oxide layer is much higher than the evaporation temperature of the metal underneath. Making the oxide layer thinner can solve this problem. Alloying magnesium with strontium makes the oxide layer thinner, especially at 0.5 wt%.
Elmar Jonas Breitbach, Stefan Julmi, Sabine Behrens, Tatiana Blank, Arvid Abel, Nicole Emminghaus, Ludger Overmeyer, Christian Klose, Hans Jürgen Maier   +8 more
wiley   +1 more source

Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components

Advanced Engineering Materials, EarlyView.
This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern, Lennart Hinz, Markus Kästner, Eduard Reithmeier   +3 more
wiley   +1 more source

3. The Chemical Composition of Stellar Atmospheres [PDF]

, 1950
Albrecht Unsöld
openalex   +1 more source

Maillard Type Reaction for Electroless Copper Plating onto Ceramic Nanoparticles

Advanced Engineering Materials, Volume 27, Issue 14, July 2025.
This work presents the manufacturing of copper‐plated ceramic nanoparticles in an environmentally friendly way. Supported by organic functionalizations with pectin an electroless plating step can be performed. Sustainable reagents like xylose, and several amino acids are used for the reduction process.
Lukas Mielewczyk, Julia Grothe, Stefan Kaskel, Heinrich von Lintel, Katja Eichmann, Katrin Jahns, Avinash Hariharan, Abdelrahman Elsayed, Ulrich Krupp   +8 more
wiley   +1 more source

Impact of Iron Contamination on Liquid Properties and Microstructural Evolution in AlSi20

Advanced Engineering Materials, Volume 27, Issue 14, July 2025.
Recycled aluminum is much more energy conservative and sustainable than primary aluminum. However, the iron contamination in secondary aluminum is vastly responsible for the degradation of the material properties. Herein, it is aimed to evaluate the influence of iron contamination in hypereutectic Al–Si alloy through thermodynamic as well as ...
Layla Shams Tisha, Anastasiya Toenjes, Nils Ellendt   +2 more
wiley   +1 more source

Magneto-Hydrostatics of Stellar Atmospheres: II. The Axially Symmetric Equilibrium Configurations [PDF]

, 1960
Hermann Bondi
openalex   +1 more source