Method of producing an internal cavity in a ceramic matrix composite

Gray, Paul Edward; Roberts, Herbert Chidsey; Taxacher, Glenn Curtis; Walker, Sheena Kum Foster

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
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C12 - biochemistry
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C14 - skins
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C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
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D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
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F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
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F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
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F42 - ammunition
F99 - subject matter not otherwise provided for in this section
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G09 - education
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G12 - instrument details
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H02 - generation
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Y04 - information or communication technologies having an impact on other technology areas
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Title: Method of producing an internal cavity in a ceramic matrix composite

Abstract

A process for producing an internal cavity in a CMC article and mandrels used therewith. The process entails incorporating a mandrel made of a fusible material that is melted and drained during a thermal treatment of a CMC preform to form the CMC article. The mandrel material is preferably non-wetting and non-reactive with any constituents of the CMC preform during the thermal treatment. The mandrel is preferably tin or an alloy of tin.

Inventors:: Gray, Paul Edward; Roberts, III, Herbert Chidsey; Taxacher, Glenn Curtis; Walker, Sheena Kum Foster

Issue Date:: 2018-07-03

Research Org.:: General Electric Co., Schenectady, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1462180

Patent Number(s):: 10011043

Application Number:: 13/780,584

Assignee:: GENERAL ELECTRIC COMPANY (Schenectady, NY)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B28 - WORKING CEMENT, CLAY, OR STONE B28B - SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

Show more

B - PERFORMING OPERATIONS B28 - WORKING CEMENT, CLAY, OR STONE B28B - SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
B28B7/342 - {which are at least partially destroyed, e.g. broken, molten, before demoulding

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B2235/6028 - Shaping around a core which is removed later
C04B35/573 - obtained by reaction sintering {or recrystallisation}
C04B35/80 - Fibres, filaments, whiskers, platelets, or the like {

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D5/187 - {Convection cooling}
F01D5/282 - {Selecting composite materials, e.g. blades with reinforcing filaments}
F01D5/284 - {Selection of ceramic materials}

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
F05D2300/6033 - Ceramic matrix composites [CMC]

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

Show less

DOE Contract Number:: FC26-05NT42643

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Feb 28

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 42 ENGINEERING

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                    Gray, Paul Edward, Roberts, III, Herbert Chidsey, Taxacher, Glenn Curtis, and Walker, Sheena Kum Foster. Method of producing an internal cavity in a ceramic matrix composite.  United States: N. p., 2018. 
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                    Gray, Paul Edward, Roberts, III, Herbert Chidsey, Taxacher, Glenn Curtis, & Walker, Sheena Kum Foster. Method of producing an internal cavity in a ceramic matrix composite.  United States.

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                    Gray, Paul Edward, Roberts, III, Herbert Chidsey, Taxacher, Glenn Curtis, and Walker, Sheena Kum Foster. Tue .  
        "Method of producing an internal cavity in a ceramic matrix composite".  United States.  https://www.osti.gov/servlets/purl/1462180.

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@article{osti_1462180,

  title        = {Method of producing an internal cavity in a ceramic matrix composite},

  author       = {Gray, Paul Edward and Roberts, III, Herbert Chidsey and Taxacher, Glenn Curtis and Walker, Sheena Kum Foster},

  abstractNote = {A process for producing an internal cavity in a CMC article and mandrels used therewith. The process entails incorporating a mandrel made of a fusible material that is melted and drained during a thermal treatment of a CMC preform to form the CMC article. The mandrel material is preferably non-wetting and non-reactive with any constituents of the CMC preform during the thermal treatment. The mandrel is preferably tin or an alloy of tin.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2018},

  month        = {7}

}

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