Results 91 to 100 of about 1,957,261 (172)

A Single‐Solvent Acetone Strategy for Surface Enhancement and Robust Bonding in PMMA Microfluidic Devices

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 19, 6 October 2026.
A single‐solvent acetone strategy simultaneously restores laser‐ablated PMMA surfaces and enables high‐strength bonding for microfluidic device fabrication. The process produces smooth, optically clear channels, achieves bonding strengths up to 27.3 MPa, and forms leak‐free devices within 25 min, providing a rapid and accessible route to robust PMMA ...
Sadık Koç, H. Cumhur Tekin
wiley   +1 more source

PolyG Fibrils Coalesce Into Nuclear Ribbons That Engage Proteostasis Machinery in Neuronal Intranuclear Inclusion Disease

open access: yesAdvanced Science, Volume 13, Issue 56, 9 October 2026.
In NIID, expanded NOTCH2NLC repeats give rise to nuclear polyG inclusions. Tracer‐guided in situ cryo‐electron tomography enables cross‐scale structural analysis from mouse brain to native neuronal nuclei, revealing dense‐core/peripheral‐halo inclusions built from compact polyG ribbons.
Hui Dong   +13 more
wiley   +1 more source

Influence of adjustable ring modes on molten pool behavior and microstructure of Al–Si coated boron steel in fiber laser welding

open access: yesJournal of Materials Research and Technology
The influence of adjustable ring modes on the phase transition and microstructural evolution in conduction mode laser welding of Al–Si coated boron steel was investigated.
Hyun-Uk Jun   +4 more
doaj   +1 more source

Polarization‐Dependence of Nonlinear Optical Effects in Silicon: The Case of Ultrafast Processing

open access: yesAdvanced Physics Research, Volume 5, Issue 10, October 2026.
The dependence of the input polarization for the nonlinear optical propagation in silicon is investigated theoretically and experimentally. The perturbative regime is examined using pump‐probe shadowgraphy and nonlinear transmission, whereas the case of permanent laser‐induced modifications is addressed using a combination of Raman micro‐spectroscopy ...
Namig Alasgarzade   +6 more
wiley   +1 more source

Ultrasonic Vibration Assisted Laser Processing: A Hybrid Paradigm for Extreme Surface Enhancement

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Traditional laser processing techniques offer many advantages, but they often encounter limitations such as heat‐affected zones, recast layers, residual tensile stresses, and poor surface finish. The integration of ultrasonic vibration (UV) presents a promising hybrid approach to overcome these challenges by introducing beneficial effects like
Aziz Ul Hassan Mohsan   +6 more
wiley   +1 more source

Comparative Investigation on the Impact Abrasive Wear Behavior of PTAW NiBSi Coatings Reinforced With Different Types of Tungsten Carbide

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT NiBSi‐based coatings reinforced with spherical cast tungsten carbide (NSC coating), irregular cast tungsten carbide (NC coating), and macrocrystalline tungsten carbide (NMC coating) are investigated to elucidate the impact of abrasive wear behavior.
Chong Chen   +9 more
wiley   +1 more source

Numerical Analysis of Molten Pool Dynamic Behaviors during High-Speed Oscillation Laser Welding with Aluminum Alloy

open access: yesMetals
Increased welding speeds are often used to achieve high welding efficiency. However, welding defects, including pores and humps, can easily be formed under high-speed welding conditions.
Yuewei Ai, Yachao Yan, Shibo Han
doaj   +1 more source

In Situ Formation of L12‐Al3Ti Precipitates Enabling High Strength and Toughness in Oscillating Laser‐Welded Aluminum Alloy

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT A synergistic strategy combining a Ti interlayer and circular beam oscillation was proposed to improve the laser weldability of 6082‐T6 aluminum alloy. The Ti interlayer suppressed porosity, eliminated columnar grains, and significantly reduced grain size by 67.7% at the weld center. Mechanistically, fine L12‐Al3Ti precipitates clearly showing
Zhongping Hou   +8 more
wiley   +1 more source

Feasibility and optimization of dissimilar laser welding components [PDF]

open access: yes, 2008
Demands placed on dissimilar metals joints have increased from various viewpoints, such as, environmental concerns, energy saving, high performance, cost saving and so on.
Hassan, Ezzeddin Mohamed
core   +2 more sources

Lattice‐Defect‐Coordinated Microstructural Continuity and Mechanical Compatibility in LPBF‐Fabricated CoCrNi/316L Bimetallic Structures

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Bimetallic structures fabricated by laser powder bed fusion (LPBF) provide an effective strategy for achieving multifunctional integration, yet interfacial structural continuity and the role of lattice defects remain insufficiently understood.
Jinguo Ge, Shuo Yin
wiley   +1 more source

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