Results 61 to 70 of about 21,667 (280)

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating flux

Materials & Design, 2015
The overlapping welding was carried out in keyhole mode between austenitic stainless steel 304 l and aluminum alloy 5083 using a low power fiber laser in continuous irradiation.
M.A. Ezazi, Farazila Yusof, Ahmed A.D. Sarhan, Mohd Hamdi Abdul Shukor, M. Fadzil   +4 more
doaj   +1 more source

Generation and characterization of T40/A5754 interfaces with lasersPatrice [PDF]

, 2014
Laser-induced reactive wetting and brazing of T40 titanium with A5754 aluminum alloy with 1.5 mm thickness was carried out in lap-joint configuration, with or without the use of Al5Si filler wire. A 2.4 mm diameter laser spot was positioned on the aluminum
BERTHE, Laurent, DAL, Morgan, PEYRE, Patrice, POUZET, Sébastien, SALLAMAND, Pierre, TOMASHCHUK, Iryna   +5 more
core   +10 more sources

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

Advanced Materials Technologies, EarlyView.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi, Sang Won Lee, Mohammad Abrar Uddin, Sina Hassanpoor, Neha Suvindran, Katherine Le, Harun Arkaz, Harishkumar Narayana, Saeid Soltanian, Danial Khorsandi, Negar Hosseinzadeh Kouchehbaghi, Taeil Kim, Yangzhi Zhu   +12 more
wiley   +1 more source

Influence of Yb:YAG laser beam parameters on Haynes 188 weld fusion zone microstructure and mechanical properties [PDF]

, 2017
The weldability of 1.2 mm thick Haynes 188 alloy sheets by a disk Yb:YAG laser welding was examined. Butt joints were made, and the influence of parameters such as power, size, and shape of the spot, welding speed, and gas flow has been investigated ...
A. Geisen, A. Odabası, A.-M. El-Batahgy, A.J. Kemp, B.S. Yilbas, F. Caiazzo, J. Graneix, J.J. Pepe, Jean-Denis Beguin, Joël Alexis, Jérémie Graneix, M. Lesty, M. Pang, M. Zhong, N.P. Barnes, R.G. Thompson, Talal Masri, W.M. Steen, W.W. Duley, X. Gao, Y. Makino   +20 more
core   +10 more sources

Expanded microchannel heat exchanger: design, fabrication and preliminary experimental test [PDF]

, 2012
This paper first reviews non-traditional heat exchanger geometry, laser welding, practical issues with microchannel heat exchangers, and high effectiveness heat exchangers.
Brandemuehl, Michael J., Denkenberger, David C., Pearce, Joshua M., Zhai, John   +3 more
core   +5 more sources

Fabric‐Based Wearable Robotic Exoskeleton Gloves: Advancements and Challenges

Advanced Materials Technologies, EarlyView.
This review highlights interdisciplinary technological advances in fabric‐based robotic gloves, focusing on progress in design, fabrication, actuation, sensing, control, and power and energy requirements. It also addresses performance testing and validation, including biomechanical, strength, functional, user experience, and durability assessments, to ...
Ayse Feyza Yilmaz, Gökhan Ince, Ozgur Atalay   +2 more
wiley   +1 more source

Apparatus for dimensional characterization of fused silica fibers for the suspensions of advanced gravitational wave detectors [PDF]

, 2011
Detection of gravitational waves from astrophysical sources remains one of the most challenging problems faced by experimental physicists. A significant limit to the sensitivity of future long-baseline interferometric gravitational wave detectors is ...
A. Cumming, A. Heptonstall, Braginsky V. B., Brow R. K., Brow R. K., C. A. Cantley, D. R. M. Crooks, G. Cagnoli, G. D. Hammond, J. Hough, K. A. Strain, M. Barton, Nowick A., R. Jones, S. Rowan   +14 more
core   +3 more sources

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source

New approaches on laser micro welding of copper by using a laser beam source with a wavelength of 450 nm

Journal of Advanced Joining Processes, 2020
Laser micro welding is specified with welding geometries below 1 mm and is used with increasing demand for contacting electronic components such as battery and fuel cells.
Marc Hummel, Christoph Schöler, André Häusler, Arnold Gillner, Reinhart Poprawe   +4 more
doaj   +1 more source