Thermal barrier coating resistant to sintering

Subramanian, Ramesh; Sabol, Stephen M

Title: Thermal barrier coating resistant to sintering

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Abstract

A device (10) having a ceramic thermal barrier coating layer (16) characterized by a microstructure having gaps (18) with a sintering inhibiting material (22) disposed on the columns (20) within the gaps (18). The sintering resistant material (22) is stable over the range of operating temperatures of the device (10) and is not soluble with the underlying ceramic layer (16). For a YSZ ceramic layer (16) the sintering resistant layer (22) may preferably be aluminum oxide or yttrium aluminum oxide, deposited as a continuous layer or as nodules.

Inventors:

Subramanian, Ramesh ^[1]; Sabol, Stephen M ^[1]

Orlando, FL

Issue Date:: 2001-01-01

Research Org.:: Westinghouse Electric Corp., Pittsburgh, PA (United States)

OSTI Identifier:: 873615

Patent Number(s):: 6203927

Assignee:: Siemens Westinghouse Power Corporation (Orlando, FL)

Patent Classifications (CPCs):: C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

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C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C16/56 - After-treatment
C23C14/083 - {of refractory metals or yttrium}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/12618 - Plural oxides
Y10T428/12736 - Al-base component
Y10T428/12549 - Adjacent to each other

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C28/341 - {with at least one carbide layer}
C23C30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
C23C28/345 - {with at least one oxide layer}
C23C28/321 - {with at least one metal alloy layer}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T50/60 - Efficient propulsion technologies

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C28/3215 - {at least one MCrAlX layer}
C23C16/403 - {of aluminium, magnesium or beryllium}
C23C14/58 - After-treatment
C23C28/3455 - {with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer}
C23C4/18 - After-treatment

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DOE Contract Number:: AC05-95OR22242

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: thermal; barrier; coating; resistant; sintering; device; 10; ceramic; layer; 16; characterized; microstructure; gaps; 18; inhibiting; material; 22; disposed; columns; 20; stable; range; operating; temperatures; soluble; underlying; ysz; preferably; aluminum; oxide; yttrium; deposited; continuous; nodules; coating layer; resistant material; thermal barrier; aluminum oxide; operating temperature; barrier coating; operating temperatures; continuous layer; ceramic layer; ceramic thermal; yttrium aluminum; resistant layer; /428/416/

Citation Formats


                    Subramanian, Ramesh, and Sabol, Stephen M. Thermal barrier coating resistant to sintering.  United States: N. p., 2001. 
        Web.

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                    Subramanian, Ramesh, & Sabol, Stephen M. Thermal barrier coating resistant to sintering.  United States.

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                    Subramanian, Ramesh, and Sabol, Stephen M. Mon .  
        "Thermal barrier coating resistant to sintering".  United States.  https://www.osti.gov/servlets/purl/873615.

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@article{osti_873615,

  title        = {Thermal barrier coating resistant to sintering},

  author       = {Subramanian, Ramesh and Sabol, Stephen M},

  abstractNote = {A device (10) having a ceramic thermal barrier coating layer (16) characterized by a microstructure having gaps (18) with a sintering inhibiting material (22) disposed on the columns (20) within the gaps (18). The sintering resistant material (22) is stable over the range of operating temperatures of the device (10) and is not soluble with the underlying ceramic layer (16). For a YSZ ceramic layer (16) the sintering resistant layer (22) may preferably be aluminum oxide or yttrium aluminum oxide, deposited as a continuous layer or as nodules.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2001},

  month        = {1}

}

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