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To provide a novel heat-resistant member having both high corrosion resistance against a high-temperature corrosive gas and high emissivity.SOLUTION: A heat-resistant member 10b includes: a base member 20 composed of an isotropic graphite; and a film 30b with a single layer or multiple layers, formed on the entire or partial surface of the base member 20. The film 30b includes a dense WC layer 32 with a single layer or multiple layers, wherein the dense WC layer includes WC as a main component and has a porosity of less than 3%. The film 30b may further include a porous WC layer 34 with a single layer or multiple layers, formed on the entire or partial surface of the dense WC layer 32. In this case, the porous WC layer 34 preferably includes WC as a main component and has a porosity larger than that of the dense WC layer 32.SELECTED DRAWING: Figure 2
【課題】高温の腐食性ガスに対する高い耐食性と、高い放射率とを兼ね備えた新規な耐熱部材を提供すること。【解決手段】耐熱部材10bは、等方性黒鉛からなる基材20と、基材20の表面の全部又は一部に形成された単層又は多層の被膜30bとを備えている。被膜30bは、WCを主成分とし、空隙率が3%未満である単層又は多層の緻密WC層32を含む。被膜30bは、緻密WC層32の表面の全部又は一部に形成された単層又は多層の多孔WC層34をさらに備えていても良い。この場合、多孔WC層34は、WCを主成分とし、空隙率が緻密WC層32のそれより大きいものが好ましい。【選択図】図2
To provide a novel heat-resistant member having both high corrosion resistance against a high-temperature corrosive gas and high emissivity.SOLUTION: A heat-resistant member 10b includes: a base member 20 composed of an isotropic graphite; and a film 30b with a single layer or multiple layers, formed on the entire or partial surface of the base member 20. The film 30b includes a dense WC layer 32 with a single layer or multiple layers, wherein the dense WC layer includes WC as a main component and has a porosity of less than 3%. The film 30b may further include a porous WC layer 34 with a single layer or multiple layers, formed on the entire or partial surface of the dense WC layer 32. In this case, the porous WC layer 34 preferably includes WC as a main component and has a porosity larger than that of the dense WC layer 32.SELECTED DRAWING: Figure 2
【課題】高温の腐食性ガスに対する高い耐食性と、高い放射率とを兼ね備えた新規な耐熱部材を提供すること。【解決手段】耐熱部材10bは、等方性黒鉛からなる基材20と、基材20の表面の全部又は一部に形成された単層又は多層の被膜30bとを備えている。被膜30bは、WCを主成分とし、空隙率が3%未満である単層又は多層の緻密WC層32を含む。被膜30bは、緻密WC層32の表面の全部又は一部に形成された単層又は多層の多孔WC層34をさらに備えていても良い。この場合、多孔WC層34は、WCを主成分とし、空隙率が緻密WC層32のそれより大きいものが好ましい。【選択図】図2
HEAT-RESISTANT MEMBER
耐熱部材
NAKAMURA DAISUKE (Autor:in)
03.06.2021
Patent
Elektronische Ressource
Japanisch