Patent ID: 11891976
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC C  F  Y | IPC C  F

Claim 0:
1. A wind turbine blade comprising:
a base member formed of FRP and having a blade shape;
an intermediate layer arranged on the base member and formed of metal, cermet, ceramic, or a composite material of resin and at least one of the metal, the cermet, or the ceramic; and
an erosion-resistant overcoat arranged on the intermediate layer and formed of a spray film having a porosity of 5% or lower,
wherein
the spray film forming the erosion-resistant overcoat is formed of cobalt alloy or cermet including tungsten carbide, and
the intermediate layer includes an intermediate spray film having a higher porosity than that of the spray film forming the erosion-resistant overcoat.