Results 71 to 80 of about 275,187 (297)

High-power and ultra-efficient operation of a 946nm Nd:YAG planar waveguide laser [PDF]

, 2009
A high-power and ultra-efficient 946nm Nd:YAG double-clad planar waveguide laser is reported. The laser produced 35W of output for 68W of incident pump power with a corresponding slope efficiency of 57%
Meissner, H.E., J. I. Mackenzie, Mackenzie, J.I., H. E. Meissner   +3 more
core   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
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

Czochralski-grown LaxGdyRzSc4-x-y-z(BO3)4 (R = Yb, Nd) crystals - A review of recent developments

Optical Materials: X, 2020
Bifunctional crystals, in which the laser effect and a nonlinear optical (NLO) process, e.g. frequency doubling, can occur simultaneously, play a key role in the development of new laser sources with emission in the near-infrared (NIR) or visible (VIS ...
Lucian Gheorghe, Alin Broasca, Madalin Greculeasa, Flavius Voicu, George Stanciu, Stefania Hau, Gabriela Croitoru, Catalina Alice Brandus, Cristina Gheorghe, Federico Khaled, Pascal Loiseau, Gérard Aka   +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

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

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

High throughput methodology for synthesis, screening, and optimization of solid state Lithium ion electrolytes

, 2011
A study of the lithium ion conductor Li3xLa2/3–xTiO3 solid solution and the surrounding composition space was carried out using a high throughput physical vapor deposition system.
Yokoishi, Shoji, Xiaojuan Lu, Denis Pasero, Duncan C. A. Smith, Thierry Le Gall, Shoji Yokoishi, Yada, Chihiro, Chihiro Yada, Andrew Weld, Christopher E. Lee, Le Gall, Thierry, Pasero, Denis, Lu, Xiaojuan, Mormiche, Claire, Beal, Mark, Mark S. Beal, Mehdi Mirsaneh, Mirsaneh, Mehdi, Weld, Andrew, Claire Mormiche, Hayden, Brian E., Brian E. Hayden, Lee, Christopher E., Smith, Duncan C.A.   +23 more
core   +1 more source

Solid State Laser

Kakuyūgō kenkyū, 1987
A solid-state laser apparatus which can cool a solid-state laser medium such that the solid-state laser medium attains a uniform temperature along the propagating direction of light to be amplified is provided. In a solid-state laser apparatus 1, a coolant circulating through flow paths 12a, 12b comes into direct contact with a pair of reflecting end ...
Jitsuno, Takahisa, Kanabe, Tadashi, Nakatsuka, Masahiro   +2 more
openaire   +1 more source