Results 161 to 170 of about 92,482 (301)

Possible favored great oxidation event scenario on exoplanets around M-stars with the example of TRAPPIST-1e. [PDF]

Sci Rep
Jaziri AY, Carrasco N, Charnay B.
europepmc   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

Flare-driven habitability: Expanding life's potential around low-mass stars. [PDF]

Innovation (Camb)
Gao DY, Liu HG, Yang M, Zhou JL.
europepmc   +1 more source

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

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Fundamentals of Interior Modelling and Challenges in the Interpretation of Observed Rocky Exoplanets. [PDF]

Space Sci Rev
Baumeister P, Miozzi F, Guimond CM, Steinmeyer ML, Dorn C, Karato SI, Bolmont É, Revol A, Thamm A, Noack L.   +9 more
europepmc   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

A first look at rocky exoplanets with JWST. [PDF]

Proc Natl Acad Sci U S A
Kreidberg L, Stevenson KB.
europepmc   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

A complex structure of escaping helium spanning more than half the orbit of the ultra-hot Jupiter WASP-121 b. [PDF]

Nat Commun
Allart R, Coulombe LP, Carteret Y, Splinter J, Dang L, Bourrier V, Lafrenière D, Albert L, Artigau É, Benneke B, Cowan NB, Doyon R, Krishnamurthy V, Jayawardhana R, Johnstone D, Langeveld AB, Meyer MR, Pelletier S, Piaulet-Ghorayeb C, Radica M, Taylor J, Turner JD.   +21 more
europepmc   +1 more source