Results 121 to 130 of about 14,795 (254)

State of the Art of Laser Hardening and Cladding

Industrial laser user, 2005
In this paper an overview is given about laser surface modification processes, which are developed especially with the aim of hardness improvement for an enhanced fatigue and wear behaviour. The processes can be divided into such with and without filler material and in solid-state and melting processes.
Vollertsen, F., Partes, K., Meijer, J.
openaire   +2 more sources

Unraveling the symmetry of Al5C3N

Acta Crystallographica Section B, Volume 82, Issue 3, Page 299-309, June 2026.
From experimental and theoretical techniques employed in this thorough reexamination of the structure of Al5C3N, the crystal structure is better described in centrosymmetric space group P63/mmc (No. 194) rather than in the previously reported noncentrosymmetric space group P63mc (No. 186).High‐temperature ceramic compound Al5C3N belongs to the scarcely
Vitalii Shtender, Chin Shen Ong, Pedro Berastegui, Olivier Donzel-Gargand, Johan Cedervall, Charles Hervoches, Premek Beran, Olle Eriksson, Ulf Jansson   +8 more
wiley   +1 more source

Recent Developments in Deep‐Ultraviolet Flat Optics

Nanophotonics, Volume 15, Issue 10, 27 May 2026.
Deep‐ultraviolet flat optics (DUVFO) is emerging as a key platform for next‐generation photonics, enabling advanced functionalities beyond conventional DUV optics. This review outlines materials, devices, and system advances, highlighting wide‐bandgap platforms, while identifying key challenges in dispersion control, characterization, and wafer‐scale ...
Omar A. M. Abdelraouf, Tao Wang, Zeng Wang   +2 more
wiley   +1 more source

Fluid Flow and Stress Field During Laser Cladding-Based Surface Repair of Aluminum Alloy: Multi-Track Simulation

Laser cladding (LC) is a promising technique for repairing aluminum alloy components, yet challenges like cracks and uneven surfaces persist due to unstable melt flow and thermal stress.
Liu, Zhongkui, Yang, Lihang, Quan Wu, Xiaosong Zhou, Zhou, Xiaosong, Yinfeng He, Haiping Chu, Yi Nie, He, Yinfeng, Zhongkui Liu, Lihang Yang, Nie, Yi, Wu, Quan, Chu, Haiping   +13 more
core   +1 more source

Near-diffraction-limited supercontinuum generation in a cladding-pumped nonlinear fiber converter

Through nonlinear scattering including stimulated Raman scattering and beam cleanup, a pulsed multimode pump beam is converted into a nearly diffraction-limited supercontinuum extending from 1 to 2 µm in a passive cladding-pumped nonlinear fiber ...
Nilsson, J., Ji, J., Codemard, C.A., Webb, A.S., Sahu, J.K.   +4 more
core  

Review of long period fiber gratings written by CO₂ laser

, 2010
This paper presents a systematic review of long period fiber gratings (LPFGs) written by the CO2 laser irradiation technique. First, various fabrication techniques based on CO2 laser irradiations are demonstrated to write LPFGs in different types of ...
Yiping Wang, Wang, Yiping
core   +1 more source

Laser Cladding Device for In-Situ Repairs of Marine Crankshafts

This paper presents the development and design of the laser cladding machine for marine diesel engine crankshaft in-situ repairs. The described technology and device is designed to perform crankpin journal build-up operations directly in the engine ...
Torims, Toms
core  

Grain refinement and Laves phase dispersion by high-intensity ultrasonic vibration in laser cladding of Inconel 718

Journal of Materials Research and Technology
Laser cladding is a promising surface modification and repair technology for fabricating Inconel 718 parts. However, laser cladding may produce coarse grains and brittle Laves phase, leading to a significant decrease in performance.
Jian Chen, Zhehe Yao, Fabo Wang, Yiming Chi, Zhen Wang, Szymon Tofil, Jianhua Yao   +6 more
doaj   +1 more source

Fibre laser sources with low quantum defect

, 2014
High power fibre lasers with efficient amplification of optical signals have been widely used for various applications for many years. A great advantage of fibres is their thermal properties, which are so good that fibres are often quoted as being immune
Yao, Tianfu
core  

Laser Cladding Performance and Process Parameter Optimization for Fe90 Alloy

Metals
Fe90 alloy has a high weld hardness, good toughness, and high oxidation resistance, and is often used as a cladding material to repair the surfaces of 42CrMo steel structures of large shearer picks.
Yang Cao, Chenye Yuan, Yanchao Zhang, Jun Ma   +3 more
doaj   +1 more source