Results 121 to 130 of about 38,658 (264)

Ultrafast laser welding of ceramics. [PDF]

, 2019
Welding of ceramics is a key missing component in modern manufacturing. Current methods cannot join ceramics in proximity to temperature-sensitive materials like polymers and electronic components.
Aguilar, G, Cuando-Espitia, N, Devia-Cruz, LF, Garay, JE, Kodera, Y, Kodera, Y, Martinez-Torres, P, Penilla, EH, Sellappan, P, Wieg, AT   +9 more
core  

Tuning the Morphology of Self‐Assembled Nanopatterns on MgO(001) Surfaces by Sequential Broad‐Beam Ion Irradiation

physica status solidi (RRL) – Rapid Research Letters, EarlyView.
A two‐step approach based on broad‐beam ion irradiation is demonstrated to produce fine‐tuned self‐assembled surface patterns on MgO(001). It shows an efficient route to modifying the crystalline MgO(001) surface topography in a controlled way, making use of its very specific behavior in terms of both the pattern morphology and patterning dynamics.
Denise J. Erb, Stefan Facsko
wiley   +1 more source

A Review of Welding in Space and Related Technologies [PDF]

Deployment of welding and additive manufacturing (AM) technologies in the space environment has the potential to revolutionize how orbiting platforms are designed, manufactured, and assembled.
Naden, N., Prater, T. J.
core   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

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

Metals
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

Universal tool LASER - application examples for welding of HT fuel cells as well as heat exchangers and tank systems for H2 processing [PDF]

, 2019
The laser tool is predestined for automated manufacturing processes and has already proven its suit-ability in many areas. In particular, joining technologies in the field of hydrogen production, its storage and for bi-polar plates have to meet the ...
Dittrich, Dirk, Klotzbach, Annett, Leyens, Christoph, Mohlau, Phillip, Standfuss, Jens, Strohbach, Robert   +5 more
core   +1 more source

Marangoni driven turbulence in high energy surface melting processes

, 2016
Experimental observations of high-energy surface melting processes, such as laser welding, have revealed unsteady, often violent, motion of the free surface of the melt pool.
Kenjereš, Saša, Kidess, Anton, Kleijn, Chris R., Righolt, Bernhard W.   +3 more
core   +1 more source

Ultrahigh Stiffness and Energy Absorption Properties of Isotropic Metallic Closed Cell Microlattices

Small, EarlyView.
True closed cell microlattices without holes are fabricated for the first time using a novel Laser Sheet Fusion additive manufacturing technique. These microlattices exhibited isotropy in stiffness and surprisingly, strength and plasticity as well, despite orientation‐dependent failure mechanisms. Furthermore, material work hardening is shown to be key
Dominic Kang Jueh Lim, Chang Quan Lai
wiley   +1 more source

Cryo‐FIB Lift‐Out and Electron Tomography Workflow for Bacteria–Nanopillar Interface Imaging Under Native Conditions: Investigating Dragonfly Inspired Bactericidal Titanium Surfaces

Small Methods, EarlyView.
A correlative cryo‐microscopy workflow enables targeted extraction and cryo‐electron tomography of bacteria–nanopillar interfaces under fully hydrated, near‐native conditions. By overcoming limitations of conventional imaging, this approach allows direct structural interrogation of bacteria–nanostructure interactions in situ, providing a methodological
Chaturanga D. Bandara, Dominik Pinkas, Martina Zanova, Martin Uher, Judith Mantell, Bo Su, Angela H. Nobbs, Paul Verkade   +7 more
wiley   +1 more source

Fabrication of a microresonator-fiber assembly maintaining a high-quality factor by CO2 laser welding

, 2015
We demonstrate fabrication of a microtoroid resonator of a high-quality (high-Q) factor using femtosecond laser three-dimensional (3D) micromachining. A fiber taper is reliably assembled to the microtoroid using CO2 laser welding.
Cheng, Ya, Fang, Zhiwei, Lin, Jintian, Liu, Zhengming, Qiao, Lingling, Wang, Min, Yao, Jinping   +6 more
core   +1 more source