Results 111 to 120 of about 322,270 (296)

Cryogenically-cooled two-micron solid-state lasers: recent results and future prospects

, 2009
Efficient powerful laser sources in the two-micron regime are in demand for many applications in the areas of remote-sensing, defence, medicine, and materials interactions.
Bailey, W.O.S., Yang, Y., Clarkson, W.A., Kim, J.W., Mackenzie, J.I., Pearson, L.   +5 more
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

136.9 W Acousto‐Optically Q‐Switched 2 μm Thin‐Disk Laser

Advanced Photonics Research
We demonstrate an acousto‐optic (AO) Q‐switching Ho:YAG thin disk laser (TDL) at 2 μm with Tm‐fiber laser pumping. Under continuous‐wave operation, the laser delivered a maximum output power of 216.4 W with an optical‐to‐optical efficiency of 43.28 ...
Qiongwen Zhang, Pengyuan Wang, Ying Chen, Rui Liu, Fei Teng, Qipeng Lv, Xiang Li, Longhui Dai, Faquan Gong, Songwen Deng, Gang Li, Yuqi Jin   +11 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Rapid characterisation of Photonic Crystal Fibre dispersive properties by a stochastic and tunable picosecond pump source [PDF]

EPJ Web of Conferences, 2022
Walter Guillaume, Ahmedou Sidi-Ely, De Thoury Thelma, Dos Santos Nicolas, Herbuvaux Jules, Redon Melvin, Delagnes Jean-Christophe, Dauliat Romain, Février Sébastien, Valentin Constance, Petit Stéphane, Valero Nicolas, Marion Denis, Lhermite Jérôme, Tanzilli Sébastien, Gérôme Frédéric, Debord Benoît, Benabid Fetah, Millot Guy, Roy Philippe, Jamier Raphael   +20 more
doaj   +1 more source

Tungsten Molecular Species in Deuterium Plasmas in Contact with Sputtered W Surfaces

Molecules
We show that in plasmas generated in deuterium in the presence of sputtered W surfaces, various molecular tungsten species are formed, whose chemical composition depends on the presence of gaseous impurities, namely, nitrogen, oxygen, and hydrogen.
Gheorghe Dinescu, Cristina Craciun, Silviu Daniel Stoica, Catalin Constantin, Bogdana Maria Mitu, Tomy Acsente   +5 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

Advanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik, Liliana I. Duarte, Malgorzata G. Makowska, Roland Brütsch, Andrej Bullemer, Ana Diaz, Mirko Holler, Andreas Menzel, Johannes Bertsch, Pavel Trtik   +9 more
wiley   +1 more source

Antitumoral-Embedded Biopolymeric Spheres for Implantable Devices

Pharmaceutics
The bioactive surface modification of implantable devices paves the way towards the personalized healthcare practice by providing a versatile and tunable approach that increase the patient outcome, facilitate the medical procedure, and reduce the ...
Valentina Grumezescu, Oana Gherasim, Bianca Gălățeanu, Ariana Hudiță   +3 more
doaj   +1 more source