High Temperature Composites With Enhanced Matrix

• US 20170342844A1
• Filed: 05/31/2016
• Published: 11/30/2017
• Est. Priority Date: 05/31/2016
• Status: Abandoned Application

• Current Assignee: Rtx Corporation
• Original Assignee: United Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Schmidt, Wayde R., Sheedy, Paul, Magdefrau, Neal
• Application Number:
  US15/168,522
• Publication Number:
  US 20170342844A1
• Time in Patent Office: Days
• CPC Class Codes: C03C 14/002 the non-glass component being in the form of fibres, filaments, yarns, felts or woven material
• CPC Class Codes: C03C 2214/03 surface treated, e.g. coated
• CPC Class Codes: C04B 2235/3224 Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
• CPC Class Codes: C04B 2235/3225 Yttrium oxide or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/3232 Titanium oxides or titanates, e.g. rutile or anatase
• CPC Class Codes: C04B 2235/3239 Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
• CPC Class Codes: C04B 2235/3241 Chromium oxides, chromates, or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/3251 Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/3256 Molybdenum oxides, molybdates or oxide forming salts thereof, e.g. cadmium molybdate
• CPC Class Codes: C04B 2235/3258 Tungsten oxides, tungstates, or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/524 Non-oxidic, e.g. borides, carbides, silicides or nitrides
• CPC Class Codes: C04B 2235/5284 Hollow fibers, e.g. nanotubes
• CPC Class Codes: C04B 35/16 based on silicates other than clay zircon C04B35/48
• CPC Class Codes: C04B 35/447 based on phosphates , e.g. hydroxyapatite
• CPC Class Codes: C04B 35/462 based on titanates
• CPC Class Codes: C04B 35/481 containing silicon, e.g. zircon
• CPC Class Codes: C04B 35/5154 based on phosphides
• CPC Class Codes: C04B 35/56 based on carbides or oxycarbides containing free metal binder C22C29/00
• CPC Class Codes: C04B 35/5603 with a well-defined oxygen content, e.g. oxycarbides
• CPC Class Codes: C04B 35/565 based on silicon carbide
• CPC Class Codes: C04B 35/58 : based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides containing free binder metal C22C29/00
• CPC Class Codes: C04B 35/5805 : based on borides
• CPC Class Codes: C04B 35/58092 : based on refractory metal silicides
• CPC Class Codes: C04B 35/584 : based on silicon nitride
• CPC Class Codes: C04B 35/62847 : with oxide ceramics
• CPC Class Codes: C04B 35/62849 : Silica or silicates
• CPC Class Codes: C04B 35/62852 : Alumina or aluminates
• CPC Class Codes: C04B 35/62855 : Refractory metal oxides
• CPC Class Codes: C04B 35/80 : Fibres, filaments, whiskers, platelets, or the like
• CPC Class Codes: C04B 35/806 : The matrix of the ceramic products consisting of non-oxides only
• CPC Class Codes: C04B 41/009 : characterised by the material treated
• CPC Class Codes: C04B 41/50 : with inorganic materials
• CPC Class Codes: C04B 41/5022 : with vitreous materials composition of vitreous glazes and enamels C03C; ceramic pigments C09C1/0009
• CPC Class Codes: C04B 41/5024 : Silicates C04B41/5022 takes precedence; silico-fluorides C04B41/5018
• CPC Class Codes: C04B 41/5059 : Silicon carbide
• CPC Class Codes: C04B 41/5064 : Boron nitride
• CPC Class Codes: C04B 41/52 : Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
• CPC Class Codes: C04B 41/522 : Multiple coatings, for one of the coatings of which at least one alternative is described
• CPC Class Codes: C04B 41/89 : for obtaining at least two superposed coatings having different compositions
• CPC Class Codes: F01D 11/08 : for sealing space between rotor blade tips and stator specially-shaped blade tips therefor F01D5/20
• CPC Class Codes: F01D 25/005 : Selecting particular materials
• CPC Class Codes: F01D 25/007 : Preventing corrosion
• CPC Class Codes: F01D 5/147 : Construction, i.e. structural features, e.g. of weight-saving hollow blades F01D5/148, F01D5/16 and F01D5/20 take precedence; blade shape F01D5/141; blades with cooling or heating channels or cavities F01D5/18; heating, heat-insulating or cooling means on blades F01D5/18
• CPC Class Codes: F01D 5/288 : Protective coatings for blades
• CPC Class Codes: F01D 9/041 : using blades F01D5/148 takes precedence
• CPC Class Codes: F04D 29/324 : Blades
• CPC Class Codes: F04D 29/542 : Bladed diffusers fixing blades to stators F01D9/042
• CPC Class Codes: F05D 2220/32 : in gas turbines
• CPC Class Codes: F05D 2230/90 : Coating; Surface treatment manufacture with deposition of material F05D2230/30
• CPC Class Codes: F05D 2240/35 : Combustors or associated equipment
• CPC Class Codes: F05D 2300/222 : Silicon
• CPC Class Codes: F05D 2300/2282 : of boron
• CPC Class Codes: F05D 2300/6033 : Ceramic matrix composites [CMC]
• CPC Class Codes: F05D 2300/611 : Coating
• CPC Class Codes: Y02T 50/60 : Efficient propulsion technologies, e.g. for aircraft

Abstract

A composite article comprises a substrate, the substrate comprising a silicon containing material and an additive comprising boron nitride nanotubes.

Claims

1. A composite article comprising:

a substrate, said substrate comprising a silicon containing material and

an additive comprising boron nitride nanotubes.

2. The composite article according to claim 1, wherein said silicon containing material is selected from the group consisting of glass, glass/ceramic and ceramic matrix composite.

3. The composite article according to claim 2, wherein said boron nitride nanotubes are one of chemically modified and physically modified with additional layers, wherein said additional layers comprise coatings selected from the group consisting of Al, Si, Ba, Ti, Y, La, Ga, Ta, Zr, Hf, Sr, Ca and the like and combinations thereof.

4. The composite article according to claim 3, wherein said modification comprises atomic layer deposition.

5. The composite article according to claim 1, further comprising:

at least one of an environmental barrier coating, a thermal barrier coating, a velocity barrier, an abradable coating, and erosion resistant coating coupled to said substrate.

6. The composite article according to claim 1, wherein said substrate comprises at least one of a material formed of a single, continuous mass of material and a composite of several different ceramic materials, carbon-based material or ceramic and metallic and carbon-based material.

7. The composite article according to claim 1, wherein said additive is uniformly dispersed in at least one of the substrate and at least one of an environmental barrier coating, a thermal barrier coating, a velocity barrier, an abradable coating, and an erosion resistant coating coupled to said substrate.

8. A turbine engine component comprising:

a substrate, said substrate comprising a silicon containing material, wherein said silicon containing material is selected from the group consisting of glass, glass/ceramic and ceramic matrix composite; and

an additive comprising boron nitride nanotubes.

9. The turbine engine component according to claim 8.

further comprising:

at least one of an environmental barrier coating, a thermal barrier coating, a velocity barrier, an abradable coating, and an erosion resistant coating coupled to said substrate.

10. The turbine engine component according to claim 8, wherein said boron nitride nanotubes are one of chemically modified and physically modified with additional layers, wherein said additional layers comprise coatings selected from the group consisting of Al, Si, Ba, Ti, Y, La, Ga, Ta, Zr, Hf, Sr, Ca and the like and combinations thereof.

11. The turbine engine component according to claim 9, wherein said additive is uniformly dispersed in at least one of the substrate and at least one of an environmental barrier coating, a thermal barrier coating, a velocity barrier, an abradable coating, and an erosion resistant coating coupled to said substrate.

12. The turbine engine system according to claim 8,

wherein said substrate comprises at least one of a material formed of a single, continuous mass of material and a composite of several different ceramic materials, carbon-based material or ceramic and metallic and carbon-based material.

13. The turbine engine system according to claim 8, wherein turbine engine component is selected from the group consisting of a combustor liner, an airfoil, a turbine blade or vane, a compressor blade or vane, blade outer air seal.

14. A process for enhancing the thermal and mechanical properties of a composite material, said process comprising:

adding a boron nitride nanotube additive to said composite material formed from a silicon-containing material.

15. The process of claim 14, wherein said silicon containing material is selected from the group consisting of glass, glass/ceramic and ceramic matrix composite.

16. The process of claim 14, further comprising:

modifying said boron nitride nanotubes by adding at least one additional layer to said boron nitride nanotubes.

17. The process of claim 16, wherein said at least one additional layer comprises coatings of selected from the group consisting of Al, Si, Ba, Ti, Y, La, Ga, Ta, Zr, Hf, Sr, Ca and the like and combinations thereof

18. The process of claim 14, further comprising:

coating said composite material with at least one of an environmental barrier coating, a thermal barrier coating, a velocity barrier, an abradable coating, and an erosion resistant coating.

19. The process of claim 18, further comprising:

uniformly dispersing the additive throughout at least one of the composite material and at least one of the environmental barrier coating, the thermal barrier coating, the velocity barrier, the abradable coating, and the erosion resistant coating.