METHOD FOR CONSTRUCTING THERMAL BARRIER COATING, AND HEAT RESISTANT MEMBER

To suppress the cost of a thermal barrier coating in a heat resistant member.SOLUTION: A method for constructing a thermal barrier coating comprises the step of forming a topcoat layer on a bond coat layer formed on the heat resistant alloy base material of an object. The step of forming the topcoat...

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Bibliographische Detailangaben
Hauptverfasser:	KIUCHI ARATA, HABU YOICHIRO, MASUDA TAKAYA, TAKAGI KAITO, NODA KAZUO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	To suppress the cost of a thermal barrier coating in a heat resistant member.SOLUTION: A method for constructing a thermal barrier coating comprises the step of forming a topcoat layer on a bond coat layer formed on the heat resistant alloy base material of an object. The step of forming the topcoat layer comprises forming the topcoat layer by spraying a suspension including ceramic powder by atmospheric pressure plasma spray while cooling a part of plasma flame by supplying water around the plasma flame at a supply rate of 25 ml/min. or more and 100 ml/min. or less as a cooling fluid.SELECTED DRAWING: Figure 4 【課題】耐熱部材における遮熱コーティングのコストを抑制する。【解決手段】一実施形態に係る遮熱コーティングの施工方法は、対象物の耐熱合金基材上に形成されたボンドコート層上にトップコート層を形成する工程を備える。トップコート層を形成する工程では、冷却流体として水を２５ｍｌ／分以上１００ｍｌ／分以下の供給速度でプラズマ炎の周囲に供給することでプラズマ炎の一部を冷却しながら、セラミックス粉末を含む懸濁液を大気圧プラズマ溶射によって溶射することでトップコート層を形成する。【選択図】図４