scholarly journals The effect of the material and distance of the substrate on the characteristics of the alumina nanopowder coating with plasma spray method

2018 ◽  
Vol 18 (2) ◽  
pp. 342-348
Author(s):  
M Kouhi ◽  
A R Sotoudeh Khiaban ◽  
S Sobhanian ◽  
◽  
◽  
...  
Keyword(s):  
Plasma Spray ◽  
Spray Method ◽  
Alumina Nanopowder

The Influence of Ar/N2 Plasma Gases on Microstructure of Ceramic Coatings Produced by PS-PVD Method

2016 ◽  
Vol 844 ◽  
pp. 187-192
Author(s):  
Paweł Pędrak ◽  
Marek Góral ◽  
Kamil Dychtoń ◽  
Tadeusz Kubaszek ◽  
Andrzej Nowotnik ◽  
...  
Keyword(s):  
Plasma Spray ◽  
Physical Vapor Deposition ◽  
Ceramic Coatings ◽  
Production Costs ◽  
Promising Technique ◽  
Reduced Pressure ◽  
Spray Process ◽  
Process Gas ◽  
Plasma Spray Process ◽  
Spray Method

The PS-PVD method is a promising technique for production of ceramic coatings from the vapor phase on gas turbine components. The resulting layers combine benefits of coatings made by the plasma spray method and other methods of Physical Vapor Deposition. The plasma spray process is carried out under reduced pressure (~ 200 Pa) and with the use of a gun applied in the method (the LPPS torch 0C3P). The PS-PVD enjoys many of the benefits of plasma spray methods combined with relatively low production costs and overall better properties. One of the significant costs of coating manufacturing by this method is the use of helium as process gas to generate plasma. The authors attempted to form a ceramic coating from ZrO2, where a mixture of argon and nitrogen in various proportions was used. The resulting layers were analyzed by XRD, LFA, SEM-EDS.

Characterisations Of Al[sub 2]O[sub 3]-13% Wt TiO[sub 2] Deposition On Mild Steel Via Plasma Spray Method

2011 ◽  
Author(s):  
N. H. Yusoff ◽  
M. J. Ghazali ◽  
M. C. Isa ◽  
A. R. Daud ◽  
A. Muchtar ◽  
...  
Keyword(s):  
Mild Steel ◽  
Plasma Spray ◽  
Spray Method

Mechanisms of ceramic coating deposition in solution-precursor plasma spray

2002 ◽  
Vol 17 (9) ◽  
pp. 2363-2372 ◽  
Author(s):  
Tania Bhatia ◽  
Alper Ozturk ◽  
Liangde Xie ◽  
Eric H. Jordan ◽  
Baki M. Cetegen ◽  
...  
Keyword(s):  
Plasma Spray ◽  
Deposition Process ◽  
Ceramic Coatings ◽  
Solution Precursor Plasma Spray ◽  
Spray Method ◽  
Solution Precursor ◽  
New Process ◽  
Coating Formation ◽  
Coating Microstructure

The solution-precursor plasma spray (SPPS) method is a new process for depositing thick ceramic coatings, where solution feedstock (liquid) is injected into a plasma. This versatile method has several advantages over the conventional plasma spray method, and it can be used to deposit nanostructured, porous coatings of a wide variety of oxide and non-oxide ceramics for a myriad of possible applications. In an effort to understand the SPPS deposition process, key diagnostic and characterization experiments were performed on SPPS coatings in the Y2O3-stabilized ZrO2 (YSZ) system. The results from these experiments show that there are multiple pathways to SPPS coating formation. The atomized precursor droplets undergo rapid evaporation and breakup in the plasma. This is followed by precipitation, gelation, pyrolysis, and sintering. The different types of particles reach the substrate and are bonded to the substrate or the coating by sintering in the heat of the plasma. The precursor also reaches the substrate or the coating. This precursor pyrolyzes in situ on the substrate, either after it reaches a “cold” substrate or upon contact on a “hot” substrate and helps bond the particles. The coating microstructure evolves during SPPS deposition as the coating temperature reaches approximately 770 °C.

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