Results 31 to 40 of about 1,991 (217)

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

Fiber-optic microstructured sensors based on abrupt field patterns: theory, fabrication, and applications

Opto-Electronic Science
Fiber-optic sensing technology has the advantages of passivity, anti-electromagnetic interference, long-distance measurement, high sensitivity and high accuracy, small size, and adaptability to harsh environments such as high-vacuum, high-pressure, and ...
Yuxuan Yi, Wanlai Zhu, Zao Yi, Zigang Zhou, Shubo Cheng, Majid Niaz Akhtar, Sohail Ahmad   +6 more
doaj   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Fiber Optic-Based Refractive Index Sensing at INESC Porto

Sensors, 2012
A review of refractive index measurement based on different types of optical fiber sensor configurations and techniques is presented. It addresses the main developments in the area, with particular focus on results obtained at INESC Porto, Portugal.
Orlando Frazão, José L. Santos, Gaspar Rego, José M. Baptista, Diana Viegas, Paulo Caldas, Luis Coelho, Paula Tafulo, Susana O. Silva, Carlos Gouveia, Pedro A. S. Jorge   +10 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Research of parameters of fusion splices of telecommunication multimode optical fibers and silica microstructured fiber lightguides with hexagonal configuration

Научно-технический вестник информационных технологий, механики и оптики
This work presents the results of experimental approbation of the ability to fuse telecommunication graded index multimode optical fibers of ISO/IEC Category OM2+/OM3 and silica microstructured optical fibers by using a commercially available field ...
A. V. Bourdine, V. G. Nesterov, M. A. Orlov, A. S. Evtushenko, S. S. Pashin, E. S. Zaitseva, A. A. Belyaev, D. N. Shurupov, V. V. Demidov, E. V. Ter-Nersesyants, K. V. Dukelskii, G. S. Polishchuk   +11 more
doaj   +1 more source

Compact supercontinuum source for the visible using gain-switched Ti:Sapphire laser as pump [PDF]

Journal of the European Optical Society-Rapid Publications, 2006
We demonstrate the use of a miniature gain-switched Ti:Sapphire laser for efficient generation of visible supercontinuum light in a highly nonlinear microstructured optical fiber.
Räikkönen E., Kaivola M., Buchter S. C.   +2 more
doaj   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

High bandwidth performance of multimode graded-index microstructured polymer optical fibers

Results in Physics, 2023
The investigation of the bandwidth in multimode graded-index microstructured polymer optical fiber (GI mPOF) with a solid core is proposed using a modal diffusion approach.
Svetislav Savović, Ana Simović, Branko Drljača, Milan S. Kovačević, Ljubica Kuzmanović, Miloš Ivanović, Alexandar Djordjevich, Konstantions Aidinis, Daniele Tosi, Rui Min   +9 more
doaj   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source