Results 141 to 150 of about 1,935,041 (297)

Improving laser cladding productivity with ‘ABA’ cladding

Procedia CIRP, 2022
Daniel Koti, John Powell, K.T. Voisey
openaire   +1 more source

Photonic Systolic Array for All‐Optical Matrix–Matrix Multiplication

Laser &Photonics Reviews, EarlyView.
A photonic systolic array is introduced, offering extreme parallelism in matrix‐matrix multiplication based on the synchronized movement of optical pulses along a crossbar array. Optical pulses traveling in perpendicular directions meet at freeform‐designed multiply‐accumulate units, each tailored to generate two signals whose intensity difference ...
Jungmin Kim, Qingyi Zhou, Zongfu Yu
wiley   +1 more source

Monolithic Integration of ScAlN Modulators on Silicon‐On‐Insulator Platform

Laser &Photonics Reviews, EarlyView.
Monolithic integration of scandium‐doped aluminum nitride (ScAlN) modulators on a silicon‐on‐insulator platform is reported. A multilayer electrode design enhances RF‐optical field overlap, enabling direct access to the diagonal electro‐optic coefficient and improved modulation efficiency.
Sihao Wang, Bo Li, Lin Zhou, Victor Leong, Nanxi Li, Xianshu Luo, Di Zhu   +6 more
wiley   +1 more source

Recent Developments in Sustainable Composites for Printed Circuit Boards (PCBs): A Review

Macromolecular Materials and Engineering, EarlyView.
This review presents the potential of using natural plant fibers and biodegradable polymers as sustainable printed circuit boards (PCBs). This review provides future directions in innovation and sustainable PCBs development. Bio‐composites PCBs are both environmentally friendly and sustainable due to the natural fibres they contain.
Erdem Selver, Ayca Dogrul Selver, Angela Daniela La Rosa, Abu Saifullah, Zhongyi Zhang, Stephen Driver, Jack Herring, Hom Nath Dhakal   +7 more
wiley   +1 more source

Characterization of Fuel Rods Supported by Dimple‐Less Spacer Grids and Subjected to Nonlinear Vibrations

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari, Brian Painter, Kostas Karazis, Marco Amabili   +3 more
wiley   +1 more source

Real‐Time Probing of Complex Bi‐Periodic Self‐Organized Grating Formation via Small‐Angle Scattering

Nano Select, EarlyView.
A wedge‐shaped AgCl nanolayer with a granular Ag film enables the self‐organization of bi‐periodic nanostructures. Real‐time SAS pattern analysis reveals dynamic domain interactions and competing gratings, validating a generator/re‐emitter model driven by TEn mode excitations. This framework offers a novel approach for evaluating SPN formation quality.
Arashmid Nahal, Ozra Kiasatfar
wiley   +1 more source

In Situ Tailoring of FCC Ductile Phases for High‐Strength Wear‐Resistant Crack‐Free W‐Based Metallic Coatings

Rare Metals, EarlyView.
ABSTRACT Tungsten is inherently brittle and particularly prone to thermal stress concentration and crack formation during additive manufacturing processes such as laser cladding, which severely limits its engineering applications as a coating material. To address this issue, this study proposes an in situ toughening strategy involving the introduction ...
Guo‐Xing Chen, Ao Yan, Hui‐Qiang Ying, He Zhu, Zhi‐Guang Zhu, Hua Ji, Zong‐De Kou, Song Tang, Tao Feng, Qi Liu, Cheng‐Wei Liu, Jun‐Qiang Xu, Si Lan   +12 more
wiley   +1 more source

Two‐Photon Microbubble Printing: Asymmetric Assembly for Continuous Laser Writing

Small, EarlyView.
Two‐photon microbubble printing is reported that combines nonlinear photochemistry with thermally driven fluid dynamics. At the laser focus, a distorted vapor bubble induce a strong rear‐to‐front convective flow. By enabling asymmetric assembly, this method allows the continuous formation of nanoparticle aggregates from a wide variety of materials ...
Masaharu Aoyama, Shogo Nara, Hiroshi Numata, Kaito Kimura, Sawa Suzuki, Hiroaki Nishiyama   +5 more
wiley   +1 more source

Multifaceted Behavior and Functional Versatility of Ferritic Stainless Steels, Part I: Applications and Processing, a Review

steel research international, EarlyView.
This review investigates the processing‐microstructure‐property relationships in ferritic stainless steels (FSSs). It highlights advances in deformation behavior, heat treatments, surface modifications, and alloying effects. Theoretical models, including Johnson‐Mehl‐Avrami‐Kolmogorov, Arrhenius, nucleation theory, and diffusion theories, are discussed
Shahab Bazri, Carlo Mapelli, Silvia Barella, Andrea Gruttadauria, Davide Mombelli   +4 more
wiley   +1 more source

Two‐Stage Isothermal Transformation of Austenite into Nanobainite in a Chemically Inhomogeneous Medium‐Alloy Steel Containing 0.5 wt% C

steel research international, EarlyView.
The effect of chemical inhomogeneity on the microstructure and properties of nanobainitic steel is investigated. A two‐stage isothermal heat treatment that produced a more uniform microstructure is designed. The first‐stage temperature is higher than the MS of depleted bands; conversely, the second‐stage temperature is lower than the first‐stage ...
Bogdan Garbarz, Jarosław Marcisz, Marek Jelec, Władysław Zalecki, Radosław Rozmus, Zofia Kania‐Pifczyk   +5 more
wiley   +1 more source