Patent ID: 9598969
Date: 2017-03-21
CPC Classifications: C23C,F01D,F05D,Y10T

Claim:
1. A turbine, comprising: a formation object member being one of a static part and a rotation part; a facing member being the other of the static part and the rotation part; a seal part at the formation object member configured to reduce combustion gas leaking between the formation object member and the facing member, the seal part including a ceramics layer; and convex parts between the formation object member and the seal part, the convex parts being made of a high-melting point material of which melting point is higher than that of the formation object member, the ceramics layer having a heat conductivity lower than that of the formation object member, and having a concave and convex shape at a surface thereof, the concave and convex shape forming slits and sealing the turbine together with the facing member, and the ceramics layer being not in contact with the facing member and having a hardness that is the same, higher, or lower than a hardness of the facing member, or the ceramics layer being in contact with the facing member and having a hardness that is higher than that of the facing member so that the facing member is preferentially abraded when the facing member and the ceramics layer are in contact with each other, wherein the seal part includes a metal layer and the ceramics layer on the metal layer, the metal layer including a concentration of chromium or aluminum higher than the formation object member.