Optimisation of Operational Parameters in Atmospheric Plasma Deposition

2021 ◽  
Vol MA2021-02 (16) ◽  
pp. 683-683
Author(s):  
Gregor Filipič
2018 ◽  
Vol 1 (1) ◽  
pp. 18-23
Author(s):  
Vadim Verlotski ◽  

In this article, the author poses and responds to a provocative question that has practically ceased to be asked in the field of thermal spraying of carbide coatings: Is the current worldwide trend of using only unmelted metal particles to form coatings (HVOF, HVAF and cold spray methods) correct, and is the deposition of completely melted powders (plasma spraying methods) really outdated? The results of high-speed plasma deposition of new carbide powders allowed the author to prove that only coatings from molten particles can solve the main problem of such coatings, namely the problem of permeability along the grain boundaries. Through the use of modern Axial III plasma torches combined with optimized fine-grained powders, it has been possible to create Cr3C2-NiCr as well as WC-Co-Cr gas-tight layers.


RSC Advances ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 4797-4805 ◽  
Author(s):  
Antoine Tiya-Djowe ◽  
Marie-Anne Dourges ◽  
Jean-Luc Bruneel ◽  
Hervé Deleuze

Non-thermal atmospheric plasma of the gliding arc type was used as a tool for goethite-on-biochar hybrid material preparation.


2007 ◽  
Vol 201 (14) ◽  
pp. 6460-6464 ◽  
Author(s):  
A. Ladwig ◽  
S. Babayan ◽  
M. Smith ◽  
M. Hester ◽  
W. Highland ◽  
...  

2020 ◽  
Vol 329 ◽  
pp. 02005
Author(s):  
Anvar Kadyrmetov ◽  
Dmitri Popov ◽  
Yevgeny Snyatkov

A brief analysis of the most common methods for producing multicomponent alloys, including high-entropy alloys (HES), is presented in terms of their use as an alternative to coatings made of traditional structural metal materials. Preliminary studies of the microstructure and phase composition of the coating obtained by plasma deposition of FeCoCrAlTiCuMo powder in the equiatomic ratio of components are presented . The results of the research showed the possibility of obtaining a multicomponent single-phase solid solution by plasma sputtering and indicated the feasibility of its further study.


2019 ◽  
Vol 688 ◽  
pp. 137437
Author(s):  
A. Remy ◽  
M. Serigne Fall ◽  
T. Segato ◽  
S. Godet ◽  
M.P. Delplancke-Ogletree ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (35) ◽  
pp. 27449-27457 ◽  
Author(s):  
Alexandros Kakaroglou ◽  
Bernard Nisol ◽  
Kitty Baert ◽  
Iris De Graeve ◽  
François Reniers ◽  
...  

Plasma density influences the chemistry and the morphology of deposited plasma polymers even under the same energy to monomer ratio.


2007 ◽  
Vol 4 (5) ◽  
pp. 511-514 ◽  
Author(s):  
Ladislav Bárdos ◽  
Hana Baránková

Metals ◽  
2014 ◽  
Vol 4 (4) ◽  
pp. 639-646 ◽  
Author(s):  
Liliana Kotte ◽  
Jana Haag ◽  
Tobias Mertens ◽  
Stefan Kaskel

2015 ◽  
Vol 15 (2) ◽  
pp. 169-181 ◽  
Author(s):  
D. Thirumalaikumarasamy ◽  
K. Shanmugam ◽  
V. Balasubramanian

AbstractPlasma-sprayed alumina coatings find wide-ranging applications by virtue of their inherent wear and corrosion resistance and attractive dielectric and diffusion barrier properties. In this work, empirical relationships were developed to predict the porosity and microhardness of alumina coatings by incorporating independently controllable atmospheric plasma-sprayed operational parameters (input power, stand-off distance and powder feed rate) using response surface methodology (RSM). A central composite rotatable design with three factors and five levels was chosen to minimize the number of experimental conditions. Within the scope of the design space, the input power and the stand-off distance appeared to be the most significant two parameters affecting the responses among the three investigated process parameters. A linear regression relationship was also established between porosity and microhardness of the alumina coatings.


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