Results 51 to 60 of about 5,854 (216)

Research on mid-infrared quantum cascade lasers spectral beam combining

Frontiers in Physics
Quantum cascade lasers (QCLs) in the mid-infrared (MIR) hold significant potential for widespread applications in both military and civilian contexts.
Xinmin Fan, Xinmin Fan, Jianxin Zhang, Jianxin Zhang, Yan Wang, Yan Wang, Sensen Li, Chunyan Wang, Chunyan Wang, Yuantai Wu, Yuantai Wu, Lujun Zhang, Lujun Zhang, Xiaodong Huang, Xiaodong Huang, Shun Li, Shun Li, Yu Zhang   +17 more
doaj   +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

High-energy laser facility PHELIX at GSI: latest advances and extended capabilities

High Power Laser Science and Engineering
The high-energy/high-intensity laser facility PHELIX of the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany, has been in operation since 2008.
Zs. Major, U. Eisenbarth, B. Zielbauer, C. Brabetz, J. B. Ohland, Y. Zobus, S. Roeder, D. Reemts, S. Kunzer, S. Götte, D. Neidherr, J. Hornung, P. Kewes, D. Schumacher, D. Beck, P. Hesselbach, M. Malki, P. Neumayer, K. Weyrich, A. Tauschwitz, V. Bagnoud   +20 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

Advanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba, Sang‐Hyeok Lee, Christina Gasper, Martina Freund, Sandra Korte‐Kerzel, Ulrich Kerzel   +5 more
wiley   +1 more source

Stable operation of a high-voltage high-current dc photoemission gun for the bunched beam electron cooler in RHIC

Physical Review Accelerators and Beams, 2020
The Low Energy RHIC electron Cooling (LEReC) project at Brookhaven National Laboratory recently demonstrated for the first time cooling of hadron bunches with radio-frequency (rf) accelerated electron bunches.
X. Gu, Z. Altinbas, S. Badea, D. Bruno, L. Cannizzo, M. Costanzo, A. Drees, A. V. Fedotov, W. Fischer, D. Gassner, M. Gaowei, P. Inacker, J. Jamilkowski, D. Kayran, J. Kewisch, C. J. Liaw, C. Liu, M. Mapes, K. Mernick, C. Mi, T. A. Miller, M. Minty, L. Nguyen, V. Ptitsyn, J. Sandberg, V. Schoefer, S. Seletskiy, L. Smart, A. Sukhanov, P. Thieberger, J. Tuozzolo, E. Wang, A. Zaltsman, He Zhao, Zhi Zhao, A. Bartnik, K. Smolenski   +36 more
doaj   +1 more source

Gaussian content as a laser beam quality parameter [PDF]

Applied Optics, 2011
18 pages, 5 ...
Ruschin, Shlomo, Yaakobi, Elad, Shekel, Eyal   +2 more
openaire   +3 more sources

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

Advanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour, Prithwish Tarafder, Anton Wiberg, Huanyu Li, Johan Moverare, Patrick Lambrix   +5 more
wiley   +1 more source

Characterization of beam quality of unstable laser beams with the multiple hyperbolas method

Results in Physics, 2019
In this paper, the multiple hyperbolas method is proposed for characterizing the beam quality of unstable laser beams. Based on the traditional beam quality analyzer equipment, the proposed method captures multiple intensity images at every measurement ...
Lingqiang Meng, Qingqing Kong, Kunhao Ji, Zhigang Han, Hua Shen, Rihong Zhu   +5 more
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source