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公开(公告)号:US20240117481A1
公开(公告)日:2024-04-11
申请号:US17962692
申请日:2022-10-10
Applicant: General Electric Company
Inventor: Margeaux Wallace , Mamatha Nagesh , Mohandas Nayak , Sundeep Kumar , Bernard Patrick Bewlay , Julie Marie Kuhn
Abstract: Methods are provided for forming a thermal barrier coating having a non-linear compositional gradient and/or a non-linear porosity gradient, along with coated components formed therefrom. The method includes spraying a deposition mixture of a first composition and a second composition via a solution precursor plasma spray apparatus onto a surface of a substrate; while spraying the deposition mixture, adjusting at least one deposition parameter such that the thermal barrier coating is formed with the non-linear gradient.
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公开(公告)号:US20230392264A1
公开(公告)日:2023-12-07
申请号:US17830937
申请日:2022-06-02
Applicant: General Electric Company
Inventor: Mohandas Nayak , Sundeep Kumar , Joshua R. Salisbury , Arundhati Sengupta , Narayanan Janakiraman , Vipin Raju S , Julie Marie Kuhn
IPC: C23C28/04
CPC classification number: C23C28/042
Abstract: A composition is provided of a rare earth-doped zirconium oxide having a tetragonal structure and having a formula: YaLnbTaxNbzZr1-a-b-x-zO2-δ where Ln is a rare earth element or a mixture of rare earth elements; 0≤a≤0.06; 0.06≤b≤0.12; 0≤x≤0.1; 0≤z≤0.1; 0.08≤(x+z)≤0.1; 0.16≤(a+b+x+z)≤0.22; and 0.01≤δ≤0.05. Methods of forming a coating with this composition, along with the coated components, are also provided.
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公开(公告)号:US20230407101A1
公开(公告)日:2023-12-21
申请号:US18085935
申请日:2022-12-21
Applicant: General Electric Company
Inventor: Mohandas Nayak , Sundeep Kumar , Atanu Saha , Julie Marie Kuhn
IPC: C09D1/00 , C09D133/08 , C09D179/08 , C08K3/105
CPC classification number: C09D1/00 , C09D133/08 , C23C4/11 , C08K3/105 , C09D179/08
Abstract: A coating method is provided. The coating method includes applying, via electrophoretic deposition or slurry deposition, an overcoat composition on an outer surface of a thermal barrier coating system on a substrate. The overcoat composition includes a coating material comprising a plurality of particles having a particle size of less than 1000 nm. The method includes sintering the overcoat composition in the presence of one or more sintering aids to form an overcoat layer having a surface roughness of less than 1 micrometer.
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公开(公告)号:US20230392020A1
公开(公告)日:2023-12-07
申请号:US17830952
申请日:2022-06-02
Applicant: General Electric Company
Inventor: Mohandas Nayak , Sundeep Kumar , Arundhati Sengupta , Joshua R. Salisbury , Vipin Raju S , Julie Marie Kuhn
CPC classification number: C09D1/00 , C01G25/02 , C09D5/18 , C01P2002/52 , C01P2006/32
Abstract: A composition comprising an yttria-rare earth-doped zirconium oxide is provided that has a tetragonal structure and a formula: YaLnbCexZr1-a-b-xO2-δ where Ln is a mixture of rare earth elements; 0.01≤a≤0.051; 0.01≤b≤0.051 such that Y and each rare earth element is included in the composition in substantially equal molar amounts; 0.05≤(a+b)≤0.07; 0≤x≤0.051; and 0≤δ≤0.05. Methods of forming a coating that includes this composition, along with the resulting coated components, are also provided.
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公开(公告)号:US20230330700A1
公开(公告)日:2023-10-19
申请号:US18068153
申请日:2022-12-19
Applicant: General Electric Company
Inventor: Margeaux Wallace , Mamatha Nagesh , Mohandas Nayak , Sundeep Kumar , Bernard Patrick Bewlay , Julie Marie Kuhn
CPC classification number: B05D1/12 , C09K11/0822 , B05D2301/10
Abstract: Coated components, along with methods of their formation, are provided. The coated component may include a substrate having a surface and a thermal barrier coating on the surface of the substrate. The thermal barrier coating includes a plurality of elongated surface-connected voids therein, and wherein the thermal barrier coating comprises a plurality of nonspherical particles within a thermal barrier material.
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