Thermo-physical processes in cerium nitrate precursor droplets injected into high temperature plasma

Saha, Abhishek; Seal, Sudipta; Cetegen, Baki M.; Jordan, Eric H.; Ozturk, Alper; Basu, Saptarshi

doi:10.1016/j.surfcoat.2008.09.018

Cited by 50 publications

(41 citation statements)

References 22 publications

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“…Loss of liquid phase from the surface concentrates the salt solutes, progressively leading to precipitation of the solute as it reaches a super-saturation level. Precipitation may occur in all regions of the drops or droplets that exceed the equilibrium saturation concentration, according to the homogeneous precipitation assumption, Saha et al (2009). Depending upon the droplet size and the mass transport characteristics within the droplet, different precipitate morphologies can be obtained: shell type morphologies or spherical precipitates.…”

Section: Solutionsmentioning

confidence: 99%

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Solution and Suspension Plasma Spraying of Nanostructure Coatings

Fauchais¹,

Vardelle²

2012

Advanced Plasma Spray Applications

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Section: Solutionsmentioning

confidence: 99%

“…According to Saha et al (2009), they include solid particles, hollow shells and fragmented shells as shown in Figures 17(a) to (c). Small droplets with high solute diffusivity exhibit a propensity to precipitate volumetrically and form solid particles as shown in Figure 17(a).…”

Section: Wwwintechopencommentioning

confidence: 99%

Solution and Suspension Plasma Spraying of Nanostructure Coatings

Fauchais¹,

Vardelle²

2012

Advanced Plasma Spray Applications

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“…Different phenomena occur when the injected solution makes contact with the plasma jet, as discussed in many studies [17,22,[35][36][37], are presented in this section in a chronological way. Initially, the liquid stream or large droplets break-up into small droplets due to the strong shear stress of the plasma flow [36].…”

Section: Phenomena In Flightmentioning

confidence: 99%

“…The cracked shell may become molten and form spherical particles, as shown in Figure 7. The different particle morphologies formed by SPPS have been discussed in the work of Saha et al [35]. Ozturk et al [37] modeled the formation of the solid crust at precipitation occurring in a single droplet.…”

Section: Phenomena In Flightmentioning

confidence: 99%

“…To understand the coating formation, the deposits obtained from a single torch scan, as shown in Figure 9, can be studied [41]. Figure 9a shows deposited melted or partially melted spherical particles (~0.3 µm in diameter), which resulted from the evaporation of solvent at the surface of the small droplets [33,35,41]. The small sintered particles (~1 µm) are like the melted ones, but deposited before melting occurs, as shown in Figure 9b [33,35,37,41].…”

Section: Cermet Coatings Formationmentioning

confidence: 99%

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Current Progress in Solution Precursor Plasma Spraying of Cermets: A Review

Unabia

Candidato

Pawłowski

2018

Metals

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Ceramic and metal composites, known also as cermets, may considerably improve many material properties with regards to that of initial components. Hence, cermets are frequently applied in many technological fields. Among many processes which can be employed for cermet manufacturing, thermal spraying is one of the most frequently used. Conventional plasma spraying of powders is a popular and cost-effective manufacturing process. One of its most recent innovations, called solution precursor plasma spraying (SPPS), is an emerging coating deposition method which uses homogeneously mixed solution precursors as a feedstock. The technique enables a single-step deposition avoiding the powder preparation procedures. The nanostructured coatings developed by SPPS increasingly find a place in the field of surface engineering. The present review shows the recent progress in the fabrication of cermets using SPPS. The influence of starting solution precursors, such as their chemistry, concentration, and solvents used, to the micro-structural characteristics of cermet coatings is discussed. The effect of the operational plasma spray process parameters such as solution injection mode to the deposition process and coatings' microstructure is also presented. Moreover, the advantages of the SPPS process and its drawbacks compared to the conventional powder plasma spraying process are discussed. Finally, some applications of SPPS cermet coatings are presented to understand the potential of the process.

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Thermal Spray Coatings

Pawłowski

2012

Wiley Encyclopedia of Composites

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The entire technology of thermal spraying is described starting from an overview of related industry and economic impact. The materials used in spraying including feedstock and substrate are shown and thermal spraying methods divided into (i) high productivity, (ii) high kinetic energy, (iii) controlled atmosphere, and (iv) nanostructured coatings are shortly described. Then the different aspects of coatings, in particular, composites, such as microstructure, and different properties are shown. A few examples of coating applications in different branches of industry are shown. Finally, the trends of the technology are detected and some aspects of security problems related to the technology are shown.

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Thermo-physical processes in cerium nitrate precursor droplets injected into high temperature plasma

Cited by 50 publications

References 22 publications

Solution and Suspension Plasma Spraying of Nanostructure Coatings

Solution and Suspension Plasma Spraying of Nanostructure Coatings

Current Progress in Solution Precursor Plasma Spraying of Cermets: A Review

Thermal Spray Coatings

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