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公开(公告)号：US20210047968A1
公开(公告)日：2021-02-18
申请号：US16977367
申请日：2019-03-01
Applicant: JAPAN FINE CERAMICS CENTER , TOCALO CO.,LTD.
Inventor： Tsuneaki MATSUDAIRA , Satoshi KITAOKA , Naoki KAWASHIMA , Daisaku YOKOE , Makoto TANAKA , Yoichiro HABU , Mikako NAGAO , Kazuo NODA , Yoshiyasu ITO , Yuhei OHIDE , Kaito TAKAGI
Abstract: A thermal barrier coating includes: a metal bonding layer made of an alloy containing Al; a thermal barrier layer; and an intermediate layer provided between the metal bonding layer and the thermal barrier layer. The thermal barrier layer contains a compound represented by the following general formula (1), LnxTayHfzO(3x+5y+4z)/2 (1) (wherein Ln is an atom of one element selected from among rare earth elements, x is 0 to 1.0, y is 0.8 to 3.0, and z is 0 to 7.0). The intermediate layer contains at least one layer selected from among the following (A) to (C): (A) a layer containing hafnium oxide (HfO2) as a main component; (B) a layer containing, as a main component, a compound consisting of tantalum (Ta), hafnium (Hf), and oxygen (O); and (C) a layer containing, as a main component, a compound consisting of a rare earth element, tantalum (Ta), hafnium (Hf), and oxygen (O).
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公开(公告)号：US20250092502A1
公开(公告)日：2025-03-20
申请号：US18730310
申请日：2023-03-07
Inventor： Arata KINOUCHI , Takaya MASUDA , Yoichiro HABU , Kaito TAKAGI , Kazuo NODA
Abstract: A method for applying a thermal barrier coating according to an embodiment, includes: a step of forming a top coat layer on a bond coat layer formed on a heat-resistant alloy base material of an object. The step of forming the top coat layer includes forming the top coat layer by thermal-spraying a suspension, which contains ceramic powder, with atmospheric pressure plasma spraying, while cooling a portion of a plasma flame by supplying water as a cooling fluid to a periphery of the plasma flame at a supply rate of not less than 25 ml/min and not greater than 100 ml/min.
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