Results 181 to 190 of about 171,313 (268)

Energy‐Dependent Nucleation and Hierarchical Aggregation of Gold Nanoparticles During Synchrotron X‐Ray Radiolysis Revealed by in Situ Transmission Imaging and SAXS

Nano Select, Volume 7, Issue 10, October 2026.
In situ x‐ray transmission imaging and monochromatic small angle x‐ray scattering (SAXS) measurements of Au precursor solution establish that precise tuning of incident photon energy controls not only the radiolytic yield but the entire hierarchical aggregation trajectory, offering a sophisticated blueprint for the rational design of functional ...
Akinobu Yamaguchi, Ikuya Sakurai, Kenji Hanada, Toshiya Yasunaga, Takao Fukuoka, Hiroshi Sekiguchi   +5 more
wiley   +1 more source

Preparation and Characterization of Gradient‐Index Copper‐Oxide Films

physica status solidi (b), Volume 263, Issue 10, October 2026.
Sequential deposition of 35 nm thick Cu layers on glass and oxidation at temperatures decreasing from 650 to 450 K enables the preparation of a gradient‐index oxide film, the stoichiometry of which monotonously changes from Cu2O to CuO with distance from the surface.
Roman Petrus, Tim Grieb, Niklas Nilius
wiley   +1 more source

Evolution of Hypoequilibrium States in Steepest Entropy Ascent Models for Nonequilibrium Quantum Thermodynamics. [PDF]

Entropy (Basel)
Beretta GP, Ray RK, von Spakovsky MR.
europepmc   +1 more source

In‐Situ Construction of Multi‐Scale Heterogeneous Structures in L‐DED IN718 Coatings via WMoTaNb Incorporation for Enhanced Strength‐Toughness Synergy

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT To improve the strength–toughness balance of IN718, and alleviate the brittleness commonly associated with refractory high‐entropy alloys, this study proposes a novel strategy to fabricate defect‐free IN718/WMoTaNb heterogeneous multiprincipal element alloy coatings via laser‐directed energy deposition.
Zhao Wang, Yinghui Zhou, Jian Chen, Rengen Ding, Wenting Shao, Shuaidan Lu, Ke Yang, Hongge Pan   +7 more
wiley   +1 more source

Stokes-Type Entropic Force Driving Nanoscale Phonon-Mediated Superlubricity in 2D Materials. [PDF]

Entropy (Basel)
Karpiński K, Kruszewska N, Rubi JM, Gadomski A.   +3 more
europepmc   +1 more source

Enhanced Corrosion Resistance in an Additively Manufactured Copper Alloy via Suppressed Segregation

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT This study elucidates the corrosion behavior of C18150 Cu–Cr–Zr alloy fabricated by laser powder bed fusion (LPBF) in comparison with a conventional wrought baseline representative of industrial Cu–Cr–Zr plate products, highlighting the superior corrosion resistance of the additively manufactured condition.
Yang Qi, Pengfei Sun, Xu Yang, Gao Huang, Binbin He   +4 more
wiley   +1 more source

Nonequilibrium Precipitation Pathway Enabling Direct δ‐phase Formation and Enhanced Cryogenic Strength–Ductility in an Additively Manufactured Multi‐Principal‐Element Alloy

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Overcoming the strength–ductility trade‐off in face‐centered cubic (FCC) multi‐principal element alloys (MPEAs), particularly at cryogenic temperatures, remains a significant challenge. Here, a laser powder bed fusion (LPBF)–enabled direct aging strategy is employed to modify the precipitation behavior in a Ni53Fe20Cr23Nb4 (at%) alloy.
Xiaohui Qin, Chenliang Chu, Dafan Du, Zhenfei Jiang, Junchen Liu, Lei Fan, Tao Yang, Anping Dong, Baode Sun   +8 more
wiley   +1 more source

Is entropy objective? Rethinking the foundations of irreversibility and the second law. [PDF]

PNAS Nexus
Parrondo JMR.
europepmc   +1 more source

Tailoring the Mechanical Properties of L‐DED‐Fabricated γ‐TiAl Alloys Through Heat Treatment: Correlating Microstructural Evolution With Fracture Mechanisms

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Laser‐directed energy deposition (L‐DED) offers a flexible route for fabricating γ‐TiAl components, but the as‐deposited microstructure requires post‐processing to overcome limited deformation capability. Here, an L‐DED Ti–48Al–2Cr–2Nb alloy was subjected to solution and solution‐aging treatments.
Mengya Chu, Yuxin Tian, Huaqiang Xiao, Han Zhang, Tianjiao Fu, Yu Zheng, Wei Gao   +6 more
wiley   +1 more source

Non-Markovian Entropy Dynamics in Living Systems from the Keldysh Formalism. [PDF]

Entropy (Basel)
Liu F, Guo M, Tan H, Wang Y.
europepmc   +1 more source