Results 31 to 40 of about 48,387 (242)

Compensation for Uneven Surfaces When Building Laser Deposited Structures [PDF]

, 2004
Direct Laser Deposition (DLD) is a blown-powder laser deposition process that can be used to quickly produce, modify or repair fully-dense metallic parts by a layered manufacturing method. However, uneven substrate surfaces often cause variation in the
Fearon, E., Watkins, K. G.
core   +1 more source

Fuzzy Control Modeling to Optimize the Hardness and Geometry of Laser Cladded Fe-Based MG Single Track on Stainless Steel Substrate Prepared at Different Surface Roughness

Micromachines, 2022
Metallic glass (MG) is a promising coating material developed to enhance the surface hardness of metallic substrates, with laser cladding having become popular to develop such coatings.
Maha M. A. Lashin, Mahmoud Z. Ibrahim, Muhammad Ijaz Khan, Kamel Guedri, Kuldeep K. Saxena, Sayed M. Eldin   +5 more
doaj   +1 more source

Linear and nonlinear optical properties of carbon nanotube-coated single-mode optical fiber gratings [PDF]

, 2011
This paper was published in OPTICS LETTERS and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.36.002104.
Benoit Simard, Chan, Choi, Chow, Chow, Chow, Claudio J. Oton, Guillermo E. Villanueva, Jacques Albert, Jakubinek, Joaquín Matres, Kingston, Li-Yang Shao, Michael B. Jakubinek, Pere Pérez-Millán, Sakakibara, Set, Vallaitis   +17 more
core   +2 more sources

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

Corrosion Resistance and Tribological Properties of Laser Cladding Layer of H13 Die Steel Strengthened by Ultrasonic Rolling

Chinese Journal of Mechanical Engineering, 2022
Laser cladding is a new surface repair method that can improve the wear and corrosion resistance of substrate surfaces. However, the cladding layer typically exhibits a rough surface, high hardness and large residual tensile stress, and thus requires ...
Kaikui Zheng, Youxi Lin, Jianguo Cai, Chengqian Lei   +3 more
doaj   +1 more source

A GaAs-based self-aligned stripe distributed feedback laser [PDF]

, 2016
We demonstrate operation of a GaAs-based self-aligned stripe (SAS) distributed feedback (DFB) laser. In this structure, a first order GaInP/GaAs index-coupled DFB grating is built within the p-doped AlGaAs layer between the active region and the n-doped ...
Babazadeh, N., Childs, D.T., Fry, P.W, Groom, K.M., Groom, K.M., Lei, H., Stevens, B.J., Ternent, G.   +7 more
core   +2 more sources

Part Repair using a Hybrid Manufacturing System [PDF]

, 2005
Nowadays, part repair technology is gaining more interest from military and industries due to the benefit of cost reducing as well as time and energy saving. Traditionally, part repair is done in the repair department using welding process.
Eiamsa-ard, Kunnayut, Liou, Frank W., Nair, Hari Janardanan, Ren, Lan, Ruan, Jianzhong, Sparks, Todd   +5 more
core   +2 more sources

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 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

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source