FIELD: machine building.
SUBSTANCE: airfoil includes a leading edge, a trailing edge, an exterior surface including a suction side extending from leading edge to trailing edge and a pressure side extending from leading edge to a trailing end. Pressure side is located opposite to suction side. Air gap is formed between trailing end and trailing edge and extends from trailing end. Complete pressure side of exterior surface is coated by a thermal barrier coating with a thickness decreasing towards trailing end.
EFFECT: higher reliability and improved gas-dynamic efficiency of airfoil.
8 cl, 3 dwg
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