Optimization of Deposition Parameters in Plasma Spray Coatings

Keshavamurthy, R.; Eswaregowda, Naveena Bettahalli; Tambrallimath, Vijay; Kuppahalli, Prabhakar

doi:10.1002/9783527825233.ch8

Cited by 2 publications

(1 citation statement)

References 37 publications

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“…Gas-plasma spraying is the process of coating the surface of a product using a plasma jet [10][11][12]. The point of plasma spraying is that a sputtered material is supplied to a high-temperature plasma jet, which heats up, melts, and directed to the substrate in the form of a two-phase flow.…”

Section: Introductionmentioning

confidence: 99%

Methods of Titanium Carbide-Based Coatings Laser Synthesis

Chkalov

Chkalova

2022

KEM

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The work is devoted to the problem of synthesis of coatings based on titanium carbide. Methods for obtaining coatings using femtosecond laser radiation and a CO2 laser are considered. The differences in mechanisms of titanium carbide synthesis, as well as the areas of application of technologies, are described. The Raman spectra of the obtained coatings are presented and analyzed. It can be judged that as a result of laser treatment, titanium carbide was formed.

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Section: Introductionmentioning

confidence: 99%

Methods of Titanium Carbide-Based Coatings Laser Synthesis

Chkalov

Chkalova

2022

KEM

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Optimization of plasma spray process variables to attain the minimum porosity and maximum hardness of the LZ/YSZ thermal barrier coatings utilizing the response surface approach

Mathanbabu¹,

Thirumalaikumarasamy²,

Tamilselvi³

et al. 2022

Mater. Res. Express

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Lanthanum zirconate (LZ) has emerged as a novel thermal barrier coating (TBC) material because of its higher temperature phase stability, and low sintering ability than the current standard yttria-stabilized zirconia (YSZ). In order to combine the advantages, LZ and YSZ feedstock powders are blended with predetermined weight ratios (50:50) as composite coatings. The leading issue in developing the composite coating using the atmospheric plasma spray method (APS) is finding the optimum range of input parameters to attain the desired coating properties. This issue can be resolved by developing empirical relations to find the porosity and micro hardness of the coating by the atmospheric plasma spray method (APS). Spray parameters such as input power, spray distance, and powder feed rate play a vital part in determining the coating quality. Three variables and five levels of central composite rotatable design (CCD) to reduce the overall run of the experiment were utilized in the research. The empirical relations were predicted to find the porosity and micro hardness of the specimens with APS process parameters, and the empirical relations were examined through ANOVA. Optimizing the plasma spray parameters was done using response surface methodology (RSM), which provides the minimum porosity and maximum hardness. It is validated using the surface response graphs, contour plots, and overlay plots. As a result, the input power has the greatest impact on the coating properties among the three variables, and the standoff distance and powder feed rate are the subsequent important spray parameters.

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Optimization of Deposition Parameters in Plasma Spray Coatings

Cited by 2 publications

References 37 publications

Methods of Titanium Carbide-Based Coatings Laser Synthesis

Methods of Titanium Carbide-Based Coatings Laser Synthesis

Optimization of plasma spray process variables to attain the minimum porosity and maximum hardness of the LZ/YSZ thermal barrier coatings utilizing the response surface approach

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