Results 51 to 60 of about 1,935,041 (297)

Микротвердость валиков из бронзы ПГ-19М-01, нанесенных как составляющая мултимодального покрытия методом лазерной наплавки [PDF]

, 2007
В статье рассматриваются преимущества лазерной наплавки и возможности использования лазерной наплавки для создания мультимодальных покрытий из разнородных металлических материалов.
Asadpour, Branka, Eble, Michael J., Gagel, Bernd Dirk, Pinkawa, Michael, Piroth, Marc Dieter, Stanzel, Sven   +5 more
core   +1 more source

Process Parameter Optimization When Preparing Ti(C, N) Ceramic Coatings Using Laser Cladding Based on a Neural Network and Quantum-Behaved Particle Swarm Optimization Algorithm

Applied Sciences, 2020
The formation process of surface coatings fabricated with laser cladding is very complicated and coating quality is closely related to laser cladding process parameters.
Zixin Deng, Tao Chen, Haojun Wang, Shengchen Li, Defu Liu   +4 more
doaj   +1 more source

Optimization of Multi-Track Laser-Cladding Process of Titanium Alloy Based on RSM and NSGA-II Algorithm

Coatings, 2022
Titanium alloy is an important material in the 21st century and its consumption in the aerospace and energy fields is increasing. In the production and repair of titanium alloy, the problem of energy saving and consumption reduction is becoming ...
Linsen Shu, Jiahao Li, Han Wu, Zhao Heng
semanticscholar   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source

Cladding for transverse-pumped solid-state laser [PDF]

, 1989
In a transverse pumped, solid state laser, a nonabsorptive cladding surrounds a gain medium. A single tranverse mode, namely the Transverse Electromagnetic (TEM) sub 00 mode, is provided. The TEM sub 00 model has a cross sectional diameter greater than a
Byer, Robert L., Fan, Tso Y.
core   +1 more source

Low-cost, precision, self-alignment technique for coupling laser and photodiode arrays to polymer waveguide arrays on multilayer PCBs [PDF]

, 2008
The first, to our knowledge, passive, precision, self-alignment technique for direct coupling of vertical cavity surface emitting laser (VCSEL) and photodiode (PD) arrays to an array of polymer buried channel waveguides on a rigid printed circuit board ...
Milward, D, Papakonstantinou, I, Pitwon, RCA, Selviah, DR   +3 more
core   +1 more source

Study of the Microstructure and Corrosion Properties of a Ni-Based Alloy Coating Deposited onto the Surface of Ductile Cast Iron Using High-Speed Laser Cladding

Materials, 2022
To improve the surface corrosion resistance of ductile iron, Ni-based alloy coatings were prepared using a high-speed laser cladding technology with different levels of laser power.
Rui Wang, C. Ouyang, Qihang Li, Qiaofeng Bai, Chunjiang Zhao, Yingliang Liu   +5 more
semanticscholar   +1 more source

All‐Aqueous Pullulan Fibers Enabling Visible‐to‐Near‐Infrared Waveguiding with Mechanical and Thermal Resilience

Advanced Functional Materials, EarlyView.
Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata, Aayush Kumar Jaiswal, Ari Hokkanen, Hannes Orelma, Tadahisa Iwata   +4 more
wiley   +1 more source

Research status and prospect of ultra-high speed laser cladding

Fenmo yejin jishu
Ultra-high speed laser cladding technology is the surface modification technology developed in recent years. Due to the characteristics of low dilution rate, small heat-affected zone, and high efficiency, it has been favored by scholars at home and ...
WEI Chenjun, WANG Yutong, LI Jinghao, ZHAO Zhanyong   +3 more
doaj   +1 more source

Cladding mode coupling in highly localized fiber Bragg gratings: modal properties and transmission spectra

, 2010
The spectral characteristics of a fiber Bragg grating (FBG) with a transversely inhomogeneous refractive index profile, differs con- siderably from that of a transversely uniform one.
Andreas Tünnermann, Chan, Erdogan, Erdogan, Graham D. Marshall, Guo, Guo, Hewlett, Hewlett, Homoelle, Jens Thomas, Jovanovic, Jáuregui, Kogelnik, M. J. Steel, Marshall, Martinez, Martinez, Michael J. Withford, Mizrahi, Mizunami, Nemanja Jovanovic, Ramachandran, Ria G. Becker, Smelser, Snyder, Steel, Stefan Nolte, Thomas, Tsao, Zhou   +30 more
core   +1 more source