Thermal Barrier Coatings Manufactured by Suspension Plasma Spraying - A Review
Теплозащитные покрытия, изготовленные методом плазменного напыления суспензий: обзор
2018-09-01
SCID: 54.1/atk7pcsv
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deposition mechanismsolution precursor plasma sprayingsuspension injectionsuspension plasma sprayingthermal barrier coatings
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Abstract (AI)
Abstract Thermal barrier coatings (TBC) is one of the most intensively studied of coatings’ applications area. From 1970’s TBC are developed in two independent ways: (i) development in new materials, with lower thermal conductivity, better erosion resistance and better thermal shock resistance or (ii) development in new deposition techniques. On this field besides conventional atmospheric plasma spraying (APS) and almost conventional (because of very common use) EB-PVD method, in the past 20 years two new techniques have been developed, namely suspension plasma spraying (SPS) and solution precursor plasma spraying (SPPS). In this paper only SPS method was described, as well as, new materials, which could be used in industrial applications of TBC. Moreover, the key issues, like suspension preparation, type of suspension injection, interaction between liquid droplets and plasma jet and deposition mechanism were described.
Key Findings
1
Key SPS process factors include suspension preparation, suspension-injection methods, liquid-droplet interaction with the plasma jet, and coating deposition mechanisms.
2
Solution precursor plasma spraying is identified as another newer technique, but it is outside the review’s primary scope.
3
Suspension plasma spraying (SPS) emerged over the past 20 years as a newer TBC deposition technique alongside atmospheric plasma spraying and EB-PVD.
4
The review focuses specifically on SPS and evaluates materials with potential for industrial thermal barrier coating applications.
5
Thermal barrier coating development has pursued two parallel goals: creating lower-conductivity, more durable materials and developing advanced deposition techniques.
Research Object
Thermal barrier coatings manufactured by suspension plasma spraying
Research Subject
Suspension plasma spraying deposition of thermal barrier coatings, including suspension preparation, injection, droplet–plasma interaction, deposition mechanisms, and coating materials
Publication Details
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2018-09-01
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