Paton Turbine Technologies Coating Services

Advanced EB PVD Coating Services

Paton Turbine Technologies Coating Service:

• Thermal barrier coatings of up to 200 µm thickness that Paton Turbine Technologies offers to customers are deposited by means of electron beam evaporation of ceramic ingots, mainly zirconia. The coatings are of columnar structure with the preset thickness distribution along section that provides excellent coating performance on turbine parts exposed to both mechanical and thermal cyclic stresses.
• It should be noted that obtaining of the preset coating thickness distribution on turbine parts is a complex engineering challenge that is successfully resolved based on the long-term experience of our employees.
• Deposition of barrier ceramic coating requires bond coat (sublayer) on the part surface that provides both adhesion of thermal barrier ceramic layer with the part surface and its protection against aggressive work environment of turbine. Technologies developed by the company (surface preparation, heat treatment, electron beam deposition, etc.) make it possible to deposit both only ceramic coating on the parts with existing bond coat and two-layer coating (metal+ceramics). The most common combinations - bond coat of nickel aluminide (or platinum) as well as nickel, cobalt and chromium alloys enriched with aluminum and yttrium (MCrAIY).
• Deposition of merely metal barrier coatings of various composition is also performed.
• Techniques of structural coating deposition, such as titanium alloys for configuration restoration of worn-out ventilation parts are mastered. In this case, EBPVD technology with ionization of evaporated metal can be used that allows significant improvement of coating adhesion with the base of refurbishable parts.

Coating Service

We offers a full range of coating applications to meet the unique needs of aero, land, and sea gas turbines

• EB PVD Ceramic coating for customer supplied bondcoated substrates
• 2-layer EB PVD TBC coating (bondcoat with chemical compositions based on customer requirements)