Results 31 to 40 of about 18,085 (258)
Modeling of flowing gas diode pumped rare gas atoms laser
Results in PhysicsDiode-pumped rare gas lasers (DPRGLs) have the potential for high optical conversion efficiency and excellent beam quality, positioning them as promising candidates for directed energy lasers. This study proposes a semi-analytical model for a flowing gas
Hongyu Liu, Hanyuan Chen, Donglin Ma
doaj +1 more source
New technologies of laser processing
Авіаційно-космічна техніка та технологія, 2021 Subject and purpose. Currently, gas, solid-state, and fiber lasers are used to process materials in the aviation industry. For the thermal treatment of steels, gas CO2 lasers with a capacity of more than 1 kW used, which are reliable in operation but ...
Ольга Валентинівна Афанасьєва +2 more
doaj +1 more source
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 +4 more
wiley +1 more source
Nd:YAG infrared laser as a viable alternative to excimer laser: YBCO case study
Scientific Reports, 2023 We report on the growth and characterization of epitaxial YBa $$_{2}$$ 2 Cu $$_{3}$$ 3 O $$_{7-\delta }$$ 7 - δ (YBCO) complex oxide thin films and related heterostructures exclusively by Pulsed Laser Deposition (PLD) and using first harmonic Nd:Y $$_{3}$
Sandeep Kumar Chaluvadi +10 more
doaj +1 more source
Sensors, 2022 A fiber-coupled, compact, remotely operated laser absorption instrument is developed for CO, CO2, and H2O measurements in reactive flows at the elevated temperatures and pressures expected in gas turbine combustor test rigs with target pressures from 1 ...
Lin Shi +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
wiley +1 more source
Measurement and Comparison of Amplifying Parameters of Copper Bromide Laser with Different Buffer Gases [PDF]
مجله علوم و فنون هستهای, 2018 A pair of copper bromide lasers in an oscillator-amplifier configuration was operated to measuring the small-signal gain and saturation intensity, as amplifying parameters of the laser.
S Behrouzinia, K Khorasani
doaj +1 more source
Advanced Engineering Materials, EarlyView.Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller +6 more
wiley +1 more source
Photonic Sensors, 2019 Multi-component and multi-point trace gas sensing in the wavelength modulation spectroscopy is demonstrated based on the frequency-division multiplexing and time-division multiplexing technology.
Zongliang Wang +8 more
doaj +1 more source