Dear Colleagues,

We would like to invite you to submit your original contributions to this Special Issue entitled “Advanced Cold Spraying Technology II”. Cold spray is a solid-state, powder-based advanced coating and additive manufacturing (AM) technology. Cold spray utilizes a high-pressure gas stream to accelerate micron-sized particles through a de-Laval nozzle to supersonic speed and impact substrates and generate dense and high-performance deposits. Cold spray has many unique attributes (e.g., high deposition rate, high adhesion strength, solid-state bonding at low temperatures) in contrast to popular fusion-based AM techniques, which has led it open up new opportunities in various niche industrial markets. After over thirty years of rapid development, cold spray technology has been successfully applied in surface repair, surface enhancement, functional coating and additive manufacturing in many fields including aerospace, weaponry, energy and power, electronic power, and medical equipment. The introduction of hybrid cold spray and the combination of cold spray with post-processing techniques resolve its many inherent drawbacks (e.g., lack of ductility, insufficient cohesion) and further promote the deployment of cold spray. The integration of artificial intelligence (AI) technology in cold spray helps to better realize toolpath and process optimization as well as process control for industrial production campaigns. Finally, the supersonic projectile behaviors of micron-sized particles in cold spray allows researchers to look into many fundamental material phenomena under extreme conditions, e.g., “size-effect” in mechanics, dynamic recrystallization, and phase transformation.

For this Special Issue, we welcome original research papers and review articles that provide state-of-the-art knowledge on advanced cold spray technology covering both academic and industrial aspects. The topics of interest for this Special Issue include, but are not limited to, the following:

• Cold spray additive manufacturing;
• Cold spray repair and restoration;
• Cold spray fundamentals;
• Cold spray powders;
• Cold spray of novel and functional materials;
• Hybrid cold spray and post-processing techniques;
• Artificial intelligence in cold spray.

Dr. Wen Sun
Dr. Xin Chu
Dr. Adrian Wei Yee Tan
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Coatings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• cold spray technology
• additive manufacturing
• powder processing
• functional coatings
• fundamental aspects
• artificial intelligence