Laser Nano Fabrication and Nano Deposition

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 4942

Special Issue Editor


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Guest Editor
Department of Mechanical and Manufacturing Engineering, Ontario Tech University, Oshawa, ON L1G 0C5, Canada
Interests: advanced fabrication techniques; optoelectronic miniature devices; advanced sensing materials for miniature sensors
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Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to this Special Issue on “Laser Nano Fabrication and Nano Deposition”. The improvement of advanced nano deposition is an eternal challenge for the synthesis of advanced structures and surfaces for a wide range of applications, from biomedical devices to energy storage, sensors, and photonic device fabrications. Laser processing is one of the most widely used techniques in manufacturing that has shown great potential as a nano fabrication methodology. When compared to other nano fabrication techniques, laser nano fabrication and deposition methods are less costly and offer high flexibility, high speed, and environment friendliness.

The purpose of this Special Issue is to address the recent developments in laser coatings, laser deposition, and characterization, highlighting their emerging applications in a wide range of applications.

In such a context, particular emphasis will be given to research developments in order to improve applications and the market extension of laser deposition.

In particular, the topics of interest include but are not limited to:

  • Laser processing;
  • Laser deposition;
  • Ultrafast laser nano fabrication;
  • Laser nano fabrication;
  • Laser ablation;
  • Nano ripple formation;
  • Laser-based 3D fabrication.

Prof. Dr. Amirkianoosh Kiani
Guest Editor

Manuscript Submission Information

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Published Papers (2 papers)

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12 pages, 6385 KiB  
Article
Understanding the Relations between Surface Stress State and Microstructure Feature for Enhancing the Fatigue Performance of TC6 Titanium Alloy
by Song Shu, Xin Huang, Zonghui Cheng, Yizhou Shen, Zhaoru He and Weilan Liu
Coatings 2021, 11(10), 1261; https://doi.org/10.3390/coatings11101261 - 18 Oct 2021
Cited by 2 | Viewed by 1935
Abstract
Fatigue performance has always been an important factor affecting the application of titanium alloy. The service life of TC6 titanium alloy is easily reduced under a continuously alternating load. Therefore, there is an urgent need for a new method to improve fatigue performance. [...] Read more.
Fatigue performance has always been an important factor affecting the application of titanium alloy. The service life of TC6 titanium alloy is easily reduced under a continuously alternating load. Therefore, there is an urgent need for a new method to improve fatigue performance. Laser shock peening (LSP) is a widely proposed method to enhance the fatigue performance. Here, through experiments and finite element simulations, it was found that LSP can prolong the fatigue life of TC6 by improving the surface stress state. In strengthening processes, the generation of residual stress was mainly attributed to the change of microstructure, which could be reflected by the statistical results of grain sizes. The content of grains with a size under 0.8 μm reached 78%, and the microhardness value of treated TC6 was 18.7% higher than that of an untreated sample. In addition, the surface residual compressive stress was increased to −600 MPa at the depth of 1500 μm from the surface. On this basis, the fatigue life was prolonged to 135%, and the ultimate fracture macroscopic was also changed. With the treatment of LSP, the fatigue performance of TC6 is highly promoted. The strengthening mechanism of LSP was established with the aim of revealing the relationship between microstructure and stress state for enhancing the fatigue performance in whatever shapes. Full article
(This article belongs to the Special Issue Laser Nano Fabrication and Nano Deposition)
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7 pages, 5176 KiB  
Letter
Laser Irradiation of Super-Nonwettable Carbon Soot Coatings–Physicochemical Implications
by Karekin D. Esmeryan, Yulian I. Fedchenko, Georgi P. Yankov and Krassimir A. Temelkov
Coatings 2021, 11(1), 58; https://doi.org/10.3390/coatings11010058 - 6 Jan 2021
Cited by 4 | Viewed by 2232
Abstract
Accounting the increasing commercial need of rational strategies for passive icing and anti-microbial protection, the development of simple, time-efficient and scalable laboratory micropatterning techniques is highly desirable. Whilst the laser irradiation is an acknowledged technology for rapidly tuning the properties of any carbon [...] Read more.
Accounting the increasing commercial need of rational strategies for passive icing and anti-microbial protection, the development of simple, time-efficient and scalable laboratory micropatterning techniques is highly desirable. Whilst the laser irradiation is an acknowledged technology for rapidly tuning the properties of any carbon allotropes, including soot aerosols, very barely is known about the impact of the laser beam on the physicochemical profile of the soot if it appears as a functional coating. In this pioneering research, the prolonged laser treatment of a super-nonwettable soot coating actuates morpho-chemical transformations in the material, depending on the laser power and irradiation time, without interfering its anti-wetting capability and optical transmittance. Our observations could be used as a foundation for facilitating the launch of soot coatings with customized anti-icing and anti-microbial performance. Full article
(This article belongs to the Special Issue Laser Nano Fabrication and Nano Deposition)
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