Results 331 to 340 of about 876,778 (355)

Origin of an orbiting star around the galactic supermassive black hole. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci
Nishiyama S, Kara T, Thorsbro B, Saida H, Takamori Y, Takahashi M, Ohgami T, Ichikawa K, Schödel R.   +8 more
europepmc   +1 more source

Effect of Copper Content on the Microstructure and Mechanical Properties of As‐Cast Refractory MoNbTi Multiprincipal Element Alloys

Advanced Engineering Materials, EarlyView.
Copper addition profoundly impacts MoNbTi multiprincipal element alloys. This study reveals copper's dual role, promoting microstructural refinement and strengthening intermetallics at optimal concentrations. An ideal copper content significantly boosts hardness and compressive strength, achieving superior mechanical performance.
Eder Lopes Ortiz, João Felipe Queiroz Rodrigues, Renato Baldan, Erik Poloni, Giovana da Silva Padilha, Wislei Riuper Osório, Ausdinir Danilo Bortolozo   +6 more
wiley   +1 more source

The Structural Refinement of Commercial‐Purity Copper Processed by Equal Channel Angular Pressing with Low Strain Amplitude

Advanced Engineering Materials, EarlyView.
Equal channel angular pressing of commercial pure copper under low strain amplitude (≈0.48) induces concurrent continuous and localized discontinuous dynamic recrystallization, forming a duplex structure influenced by strain heterogeneity and recovery. Moderate hardening after 4–12 passes results from progressive high‐angle grain boundary formation via
Paula Cibely Alves Flausino, Nayara A. N. da Silva, Bárbara C. de Almeida, Taise M. Manhabosco, Elaine C. S. Corrêa, Maria T. P. Aguilar, Paulo R. Cetlin   +6 more
wiley   +1 more source

A Comprehensive Review of Additive Manufacturing for Space Applications: Materials, Advances, Challenges, and Future Directions

Advanced Engineering Materials, EarlyView.
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos, Eleni Papadopoulou, Grigorios Kostopoulos, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria Gkara, Chara C. Mitropoulou, Nikos D. Lagaros   +8 more
wiley   +1 more source

Magma Ocean Evolution at Arbitrary Redox State. [PDF]

J Geophys Res Planets
Nicholls H, Lichtenberg T, Bower DJ, Pierrehumbert R.   +3 more
europepmc   +1 more source

Toward Maximum Utilization of Heavy Rare Earths in Sintered Nd–Fe–B Magnets by Grain Boundary Diffusion Source and Application Area Optimization

Advanced Engineering Materials, EarlyView.
In this work, the grain boundary diffusion process is optimized to maximize heavy rare earth utilization by strategic magnetic hardening of areas in the magnet such as corners or edges that are highly susceptible to demagnetization, as demonstrated by finite element magnetostatics simulation on an internal permanent magnet, synchronous traction motor ...
Abdullatif Durgun, Dominik Ohmer, Matthias Katter, Andreas Thul, Simon Steentjes, Hossein Sepehri Amin, Oliver Gutfleisch, Imants Dirba   +7 more
wiley   +1 more source

First direct observations of atmospheric sputtering at Mars. [PDF]

Sci Adv
Curry SM, Hara T, Luhmann JG, Leblanc F, Jolitz R, Mitchell D, Modolo R, Brain DA, Espley J, Benna M, Halekas J.   +10 more
europepmc   +1 more source

Photon strength functions and nuclear level densities: invaluable input for nucleosynthesis. [PDF]

Philos Trans A Math Phys Eng Sci
Wiedeking M, Goriely S.
europepmc   +1 more source

Evidence of the Amino Acids Tyrosine and Phenylalanine in the Interstellar Material of IC348 in Perseus. [PDF]

Life (Basel)
Iglesias-Groth S, Marín Dobrincic M, Pérez Garrido A, Gutierrez C.   +3 more
europepmc   +1 more source

Primordial black holes and their gravitational-wave signatures. [PDF]

Living Rev Relativ
Bagui E, Clesse S, De Luca V, Ezquiaga JM, Franciolini G, García-Bellido J, Joana C, Kumar Jain R, Kuroyanagi S, Musco I, Papanikolaou T, Raccanelli A, Renaux-Petel S, Riotto A, Ruiz Morales E, Scalisi M, Sergijenko O, Ünal C, Vennin V, Wands D, LISA Cosmology Working Group.   +20 more
europepmc   +1 more source