Sigmatech Ltd. provides services in the area of applying metal thermal protective and ceramic thermal barrier coatings to the components of hot gas paths in aircraft and industrial gas turbine engines using electron beam physical vapor deposition (EBPVD). Typical components include high-pressure rotating and nozzle turbine blades that operate under the most severe conditions.
To increase durability and reliability of aircraft engine components, the company offers a number of coating systems based on various types of metal sublayers (MCrAlY, where M is Co, Ni, or Co+Ni) and ceramic thermal barrier coatings (ZrO2 +Y2O3, ZrO2+GdO2+Y2O3 and etc.). With a solid engineering team, ceramic and metal ingot manufacturing, and extensive experience in the area of EBPVD technologies, the company can develop and apply a variety of coating systems according to customer requirements.
As with aircraft engines, the components of modern power turbines operate under extremely severe conditions. The company offers power turbine coatings that have diverse chemical compositions to factor in environmental effects (desert, marine climate, etc.). The right MCrAlY coating can significantly improve the corrosion-erosion characteristics under such conditions, while the ceramic thermal barrier coating applied using EBPVD will significantly enhance durability of products under multi-cycle loads.
OIL & GAS
The components of gas turbine engines — gas compressors — have their own features, but their operating environment does not differ from other industrial turbines. The company offers a number of metal coating systems based on cobalt and nickel superalloys to ensure long-term and reliable operation. At the request of customers, the company can also apply thermal barrier coatings based on various oxide systems.