Anti-cmas coating with dual reactivity
US-2021148238-A1 · May 20, 2021 · US
Method for applying thermal barrier coating and heat-resistant member
US2023374643A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023374643-A1 |
| Application number | US-202118031503-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 23, 2021 |
| Priority date | Dec 28, 2020 |
| Publication date | Nov 23, 2023 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A method for applying a thermal barrier coating according to at least one embodiment of the present disclosure 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 containing ceramic powder by high velocity flame spraying, while maintaining a temperature of the top coat layer at not lower than 300° C. and not higher than 450° C.
First claim
Opening claim text (preview).
1 . A method for applying a thermal barrier coating, comprising: a step of forming a top coat layer on a bond coat layer formed on a heat-resistant alloy base material of an object, wherein the step of forming the top coat layer includes forming the top coat layer by thermal-spraying a suspension containing ceramic powder by high velocity flame spraying, while maintaining a temperature of the top coat layer at not lower than 300° C. and not higher than 450° C. 2 . The method for applying the thermal barrier coating according to claim 1 , wherein the step of forming the top coat layer includes forming the top coat layer by thermal-spraying the suspension containing the ceramic powder by high velocity flame spraying, while maintaining the temperature at not lower than 300° C. and not higher than 400° C. 3 . The method for applying the thermal barrier coating according to claim 1 , wherein the step of forming the top coat layer includes controlling the temperature by cooling with a cooling medium. 4 . The method for applying the thermal barrier coating according to claim 3 , wherein the cooling medium is compressed air compressed by a compressor. 5 . The method for applying the thermal barrier coating according to claim 3 , wherein the cooling medium includes dry ice. 6 . The method for applying the thermal barrier coating according to claim 1 , wherein the step of forming the top coat layer includes forming the top coat layer by sequentially thermal-spraying a plurality of the objects attached to a jig. 7 . The method for applying the thermal barrier coating according to claim 6 , wherein the jig is capable of holding the plurality of the objects annularly arranged, and wherein the step of forming the top coat layer includes sequentially thermal-spraying the plurality of the objects held by the jig, while relatively rotating the plurality of the objects and a thermal spray gun. 8 . The method for applying the thermal barrier coating according to claim 1 , wherein the ceramic powder contains any of yttria-stabilized zirconia, dysprosia stabilized zirconia, erbia stabilized zirconia, Gd 2 Zr 2 O 7 , or Gd 2 Hf 2 O 7 . 9 . The method for applying the thermal barrier coating according to claim 1 , further comprising: a step of forming the bond coat layer on the heat-resistant alloy base material by high velocity flame spraying. 10 . A heat-resistant member comprising the top coat layer formed by the method for applying the thermal barrier coating according to claim 1 .
Assignees
Inventors
Classifications
- C23C4/129Primary
Flame spraying · CPC title
Oxides, borides, carbides, nitrides or silicides; Mixtures thereof · CPC title
Pretreatment of the material to be coated, e.g. for coating on selected surface areas · CPC title
- C23C4/11Primary
Oxides · CPC title
containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements · CPC title
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- What does patent US2023374643A1 cover?
- A method for applying a thermal barrier coating according to at least one embodiment of the present disclosure 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 containing ceramic powder by high velocity flame sp…
- Who is the assignee on this patent?
- Mitsubishi Heavy Ind Aero Engines Ltd
- What technology area does this patent fall under?
- Primary CPC classification C23C4/129. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Nov 23 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).