Results 91 to 100 of about 21,739 (252)

Anti-corrosion and wear resistance properties of AlSi10Mg alloy and SiC/AlSi10Mg composites fabricated by selective laser melting

Cailiao gongcheng
The SiC/AlSi10Mg composites were fabricated via selective laser melting（SLM）. The phase characteristics， microstructure， anti-corrosion and wear resistance properties of SLM SiC/AlSi10Mg and SLM AlSi10Mg samples were investigated by XRD， SEM， EDS， EBSD ...
DING Xueping, ZHANG Qi, ZHOU Yinying, GUO Yaoqi, TANG Min, GONG Yuan   +5 more
doaj   +1 more source

Metasurface‐Based Polarization‐Controlled Generation of 128‐Dimensional Vector Vortex Combs

Laser &Photonics Reviews, EarlyView.
The generation and continuous control of 128‐dimensional vector vortex combs using a single metasurface is reported. This work creates a class of structured light that uniquely integrates ultrahigh dimensionality with vector properties, and represents a crucial step toward on‐chip, reconfigurable generators for ultrahigh‐dimensional vector structured ...
Jiaqi Wang, Wenxi Wang, Wen Chen
wiley   +1 more source

Controlling the Center of Mass Motion of Levitated Particles Using Structured Wavefronts

Laser &Photonics Reviews, EarlyView.
Optically levitated particles have great potential for quantum‐enhanced sensing. Precise control of the trapping beam is crucial to improve the stability and confinement of these systems. Here, we study how structured wavefronts can be used to control the center‐of‐mass motion of levitated particles, enhancing trap stiffness and enabling stable ...
Shah Jee Rahman, Quimey Pears Stefano, Angel Cifuentes, Jason Francis, Iker Gómez‐Viloria, Ruben Pellicer‐Guridi, Miguel Varga, Gabriel Molina‐Terriza   +7 more
wiley   +1 more source

SLM Ti12Mo6Zr2Fe-xCu implants: in-situ precipitating nanoscale Ti-Cu phase induced bio-functional properties

Virtual and Physical Prototyping
Although a novel full β-Ti alloy (Ti12Mo6Zr2Fe) possessing the excellent mechanical properties could be developed using selective laser melting (SLM) technology, nevertheless, inherent bio-inertness still limits its clinical application.
Yuanqing Cai, Cheng Chang, Jiagu Huang, Liyuan Sheng, Sophie C. Cox, Hong Chen, Qingkun Chu, Bingwen Lu, Yang Chen, Shuo Yin, Xingchen Yan, Xinyu Fang, Wenming Zhang, Yufeng Zheng   +13 more
doaj   +1 more source

Interleaved Diffractive Networks for Information Transfer Through Random Diffusers

Laser &Photonics Reviews, EarlyView.
This work presents a cascaded diffractive optical network that enables information transfer through random, unknown diffusers using passive, interleaved structured layers that mitigate scattering without digital computation. A hybrid optical‐digital version further improves robustness and reconstruction fidelity under distortions, with both simulations
Yuhang Li, Yiyang Wu, Shiqi Chen, Xilin Yang, Aydogan Ozcan   +4 more
wiley   +1 more source

Diffraction‐Free Natural Optical Skyrmions and Their Subwavelength Confinement Around Vortices

Laser &Photonics Reviews, EarlyView.
ABSTRACT Diffraction causes waves to spread out as they propagate freely. The tighter the lateral confinement, the faster the spreading. Past research on how to suppress diffraction has been based on wave engineering and has led so far to idealized waves that, in real settings, eventually diffract.
Nilo Mata‐Cervera, Deepak K. Sharma, Ramon Paniagua‐Dominguez, Yijie Shen, Miguel A. Porras   +4 more
wiley   +1 more source

Generating Helical Polymorphic Beams Using Dielectric Metasurfaces

Laser &Photonics Reviews, EarlyView.
Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh, Yang Xu, Jose A. Rodrigo, Kenneth B. Crozier   +3 more
wiley   +1 more source

Atmospheric Corrosion Protection of LPBF Manufactured AlSi10Mg by Combining SiOx‐CVD and PDMS Grafting

Materials and Corrosion, EarlyView.
Hybrid SiOₓ‐CVD/PDMS ultrathin films mitigate atmospheric corrosion of additively manufactured AlSi10Mg. Electrochemical analyses show reduced corrosion currents, increased charge‐transfer resistance, and suppressed pitting due to diminished cathodic activity and limited oxygen and ion transport under NaCl exposure.
Tim Prüßner, Kay‐Peter Hoyer, Nadine Buitkamp, Guido Grundmeier   +3 more
wiley   +1 more source

PAPR Reduction of OTSM with Random and Orthogonal SLM Phase Sequences and its Recovery in the Presence of EPA, EVA and ETU Channel Models [PDF]

Radioengineering
To overcome the high peak-to-average-power ratio (PAPR) in orthogonal time sequency multiplexing (OTSM), this document proposes orthogonal and random selective mapping phase vectors (OSLM and RSLM) after some modifications to be applicable with OTSM ...
M. I. Al-Rayif
doaj  

Fretting Wear and Corrosion Behavior of the Fe‐35Mn Biodegradable Alloy for Biomedical Applications

Materials and Corrosion, EarlyView.
This study evaluates the corrosion and tribological wear behavior of the Fe‐35Mn alloy, demonstrating superior mechanical stability and a more favorable degradation rate than pure iron, thereby highlighting its potential for biomedical applications. ABSTRACT The biodegradable Fe‐35Mn alloy has emerged as a promising material for temporary implants due ...
Kerolene Barboza da Silva, Caio Pascotti Valem, S. Sudhagara Rajan, Vasanth Gopal, Praveenkumar Kesavan, Roberto Zenhei Nakazato, Geetha Manivasagam, Ana Paula Rosifini Alves   +7 more
wiley   +1 more source