Patent
US 10,091,916FABRICATION OF CERAMIC MATRIX COMPOSITES WITH CARBON NANOTUBES AND GRAPHENE
Daniel Joseph Braley
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,091,916Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 illustrates an aircraft 100 in an exemplary embodiment. Aircraft 100 may comprise any object capable of flight, including airplanes, drones, missiles, …
FIG. 2 illustrates the CMC material 102 in an exemplary embodiment. The CMC material 102 includes a combination of a ceramic matrix 210, carbon nanotubes 220, …
FIG. 3 is a flowchart illustrating a method 300 for fabricating the CMC material 102 in an exemplary embodiment. The steps of the flowcharts described herein are …
FIG. 4 illustrates a manufacturing system and method 400 for fabricating the CMC material 102 in an exemplary embodiment. The steps described herein are not …
FIG. 5 is a flow diagram of aircraft production and service methodology in an exemplary embodiment. [0014]
FIG. 6. During pre-production, exemplary method 500 may include specification and design 504 of the aircraft 502 and material procurement 506. During …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for forming a ceramic matrix composite structure, the method comprising: providing a mixture of carbon nanotubes, graphene, and silicon carbon nitride; heating the mixture to bond the carbon nanotubes and the graphene; and sintering the silicon carbon nitride in the mixture.
The method of claim 1 further comprising: heating the mixture to a first temperature to initiate chemical bonding between the carbon nanotubes and the graphene; and pressurizing the mixture during heating of the mixture at a second temperature to cause the sintering of the silicon carbon nitride in the mixture at a temperature that is below 1,000 degrees Celsius.
The method of claim 1 wherein: the carbon nanotubes comprise single-wall carbon nanotubes having a length between 0.5 millimeters to 4 millimeters and a diameter between 1 nanometer and 50 nanometers, the carbon nanotubes being in a range of 10-30 % by weight in the mixture; the graphene comprises nanographene platelets having a platelet size that is 6-8 nm thick and 5-25 microns wide, the graphene being in a range of 10-3 0 % by weight in the mixture; the silicon carbon nitride comprises a powder having particle sizes between 0.1 and 1 micrometers in diameter, the silicon carbon nitride being in a range of 60-80 % by weight; and a combined weight of the carbon nanotubes and the graphene in the mixture is less than 40 % by weight.
canceled
A ceramic matrix composite material comprising: carbon nanotubes; graphene chemically bonded to the carbon nanotubes; and silicon carbon nitride sintered in a mixture with the carbon nanotubes and the graphene. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes at approximately 20 % by weight; the graphene at approximately 20 % by weight; and the silicon carbon nitride in a powder form at approximately 60 % by weight. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes in a range of 10-3 0 % by weight; the graphene in a range of 10-3 0 % by weight; and the silicon carbon nitride in a powder form in a range of 60-80 % by weight; wherein a combined weight of the carbon nanotubes and the graphene in the mixture is less than 40 % by weight. withdrawn
The ceramic matrix composite material of claim 10 wherein: the ceramic matrix composite material is approximately 2.1 g/cm3; the carbon nanotubes are approximately 0.42 g/cm3; the graphene is approximately 0.42 g/cm3; and the silicon carbon nitride is approximately 1.26 g/cm3. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes in a range of 0.21 g/cm3 to 0.63 g/cm3; the graphene in a range of 0.21 g/cm3 to 0.63 g/cm3; and the silicon carbon nitride in a range of 1.26 g/cm3 to 1.68 g/cm3; wherein a combined weight of the carbon nanotubes and the graphene is less than 40 % by weight. withdrawn
The ceramic matrix composite material of claim 10 wherein: the carbon nanotubes comprise single-wall carbon nanotubes having a length between 0.5 millimeters to 4 millimeters and a diameter between 1 nanometer and 50 nanometers. withdrawn
The ceramic matrix composite material of claim 10 wherein: the graphene comprises nanographene platelets having a platelet size that is 6-8 nm thick and 5-25 microns wide. withdrawn
The ceramic matrix composite material of claim 10 wherein: prior to sintering, the silicon carbon nitride comprises a powder having particle sizes between 0.1 and 1 micrometers in diameter. withdrawn
The ceramic matrix composite material of claim 10 wherein: the carbon nanotubes and the graphene are chemically bonded at a first temperature between 750 degrees Celsius and 950 degrees Celsius. withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
ceramic matrix composite structure
Materials described outside the worked examples.
carbon nanotubes
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 6. During pre-production, exemplary method 500 may include specification and design 504 of the aircraft 502 and material procurement 506. During …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
CMC composite density (claimed) | 2.1 g/cm3 | ceramic matrix composite (CMC) material |
carbon nanotubes partial density in composite (claimed) |
Patent
Atlas literature
Patent
US 10,091,916Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 illustrates an aircraft 100 in an exemplary embodiment. Aircraft 100 may comprise any object capable of flight, including airplanes, drones, missiles, …
FIG. 2 illustrates the CMC material 102 in an exemplary embodiment. The CMC material 102 includes a combination of a ceramic matrix 210, carbon nanotubes 220, …
FIG. 3 is a flowchart illustrating a method 300 for fabricating the CMC material 102 in an exemplary embodiment. The steps of the flowcharts described herein are …
FIG. 4 illustrates a manufacturing system and method 400 for fabricating the CMC material 102 in an exemplary embodiment. The steps described herein are not …
FIG. 5 is a flow diagram of aircraft production and service methodology in an exemplary embodiment. [0014]
FIG. 6. During pre-production, exemplary method 500 may include specification and design 504 of the aircraft 502 and material procurement 506. During …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for forming a ceramic matrix composite structure, the method comprising: providing a mixture of carbon nanotubes, graphene, and silicon carbon nitride; heating the mixture to bond the carbon nanotubes and the graphene; and sintering the silicon carbon nitride in the mixture.
The method of claim 1 further comprising: heating the mixture to a first temperature to initiate chemical bonding between the carbon nanotubes and the graphene; and pressurizing the mixture during heating of the mixture at a second temperature to cause the sintering of the silicon carbon nitride in the mixture at a temperature that is below 1,000 degrees Celsius.
The method of claim 1 wherein: the carbon nanotubes comprise single-wall carbon nanotubes having a length between 0.5 millimeters to 4 millimeters and a diameter between 1 nanometer and 50 nanometers, the carbon nanotubes being in a range of 10-30 % by weight in the mixture; the graphene comprises nanographene platelets having a platelet size that is 6-8 nm thick and 5-25 microns wide, the graphene being in a range of 10-3 0 % by weight in the mixture; the silicon carbon nitride comprises a powder having particle sizes between 0.1 and 1 micrometers in diameter, the silicon carbon nitride being in a range of 60-80 % by weight; and a combined weight of the carbon nanotubes and the graphene in the mixture is less than 40 % by weight.
canceled
A ceramic matrix composite material comprising: carbon nanotubes; graphene chemically bonded to the carbon nanotubes; and silicon carbon nitride sintered in a mixture with the carbon nanotubes and the graphene. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes at approximately 20 % by weight; the graphene at approximately 20 % by weight; and the silicon carbon nitride in a powder form at approximately 60 % by weight. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes in a range of 10-3 0 % by weight; the graphene in a range of 10-3 0 % by weight; and the silicon carbon nitride in a powder form in a range of 60-80 % by weight; wherein a combined weight of the carbon nanotubes and the graphene in the mixture is less than 40 % by weight. withdrawn
The ceramic matrix composite material of claim 10 wherein: the ceramic matrix composite material is approximately 2.1 g/cm3; the carbon nanotubes are approximately 0.42 g/cm3; the graphene is approximately 0.42 g/cm3; and the silicon carbon nitride is approximately 1.26 g/cm3. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes in a range of 0.21 g/cm3 to 0.63 g/cm3; the graphene in a range of 0.21 g/cm3 to 0.63 g/cm3; and the silicon carbon nitride in a range of 1.26 g/cm3 to 1.68 g/cm3; wherein a combined weight of the carbon nanotubes and the graphene is less than 40 % by weight. withdrawn
The ceramic matrix composite material of claim 10 wherein: the carbon nanotubes comprise single-wall carbon nanotubes having a length between 0.5 millimeters to 4 millimeters and a diameter between 1 nanometer and 50 nanometers. withdrawn
The ceramic matrix composite material of claim 10 wherein: the graphene comprises nanographene platelets having a platelet size that is 6-8 nm thick and 5-25 microns wide. withdrawn
The ceramic matrix composite material of claim 10 wherein: prior to sintering, the silicon carbon nitride comprises a powder having particle sizes between 0.1 and 1 micrometers in diameter. withdrawn
The ceramic matrix composite material of claim 10 wherein: the carbon nanotubes and the graphene are chemically bonded at a first temperature between 750 degrees Celsius and 950 degrees Celsius. withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
ceramic matrix composite structure
Materials described outside the worked examples.
carbon nanotubes
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 6. During pre-production, exemplary method 500 may include specification and design 504 of the aircraft 502 and material procurement 506. During …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
CMC composite density (claimed) | 2.1 g/cm3 | ceramic matrix composite (CMC) material |
carbon nanotubes partial density in composite (claimed) |
Patent
Atlas literature
Patent
US 10,091,916Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 illustrates an aircraft 100 in an exemplary embodiment. Aircraft 100 may comprise any object capable of flight, including airplanes, drones, missiles, …
FIG. 2 illustrates the CMC material 102 in an exemplary embodiment. The CMC material 102 includes a combination of a ceramic matrix 210, carbon nanotubes 220, …
FIG. 3 is a flowchart illustrating a method 300 for fabricating the CMC material 102 in an exemplary embodiment. The steps of the flowcharts described herein are …
FIG. 4 illustrates a manufacturing system and method 400 for fabricating the CMC material 102 in an exemplary embodiment. The steps described herein are not …
FIG. 5 is a flow diagram of aircraft production and service methodology in an exemplary embodiment. [0014]
FIG. 6. During pre-production, exemplary method 500 may include specification and design 504 of the aircraft 502 and material procurement 506. During …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for forming a ceramic matrix composite structure, the method comprising: providing a mixture of carbon nanotubes, graphene, and silicon carbon nitride; heating the mixture to bond the carbon nanotubes and the graphene; and sintering the silicon carbon nitride in the mixture.
The method of claim 1 further comprising: heating the mixture to a first temperature to initiate chemical bonding between the carbon nanotubes and the graphene; and pressurizing the mixture during heating of the mixture at a second temperature to cause the sintering of the silicon carbon nitride in the mixture at a temperature that is below 1,000 degrees Celsius.
The method of claim 1 wherein: the carbon nanotubes comprise single-wall carbon nanotubes having a length between 0.5 millimeters to 4 millimeters and a diameter between 1 nanometer and 50 nanometers, the carbon nanotubes being in a range of 10-30 % by weight in the mixture; the graphene comprises nanographene platelets having a platelet size that is 6-8 nm thick and 5-25 microns wide, the graphene being in a range of 10-3 0 % by weight in the mixture; the silicon carbon nitride comprises a powder having particle sizes between 0.1 and 1 micrometers in diameter, the silicon carbon nitride being in a range of 60-80 % by weight; and a combined weight of the carbon nanotubes and the graphene in the mixture is less than 40 % by weight.
canceled
A ceramic matrix composite material comprising: carbon nanotubes; graphene chemically bonded to the carbon nanotubes; and silicon carbon nitride sintered in a mixture with the carbon nanotubes and the graphene. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes at approximately 20 % by weight; the graphene at approximately 20 % by weight; and the silicon carbon nitride in a powder form at approximately 60 % by weight. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes in a range of 10-3 0 % by weight; the graphene in a range of 10-3 0 % by weight; and the silicon carbon nitride in a powder form in a range of 60-80 % by weight; wherein a combined weight of the carbon nanotubes and the graphene in the mixture is less than 40 % by weight. withdrawn
The ceramic matrix composite material of claim 10 wherein: the ceramic matrix composite material is approximately 2.1 g/cm3; the carbon nanotubes are approximately 0.42 g/cm3; the graphene is approximately 0.42 g/cm3; and the silicon carbon nitride is approximately 1.26 g/cm3. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes in a range of 0.21 g/cm3 to 0.63 g/cm3; the graphene in a range of 0.21 g/cm3 to 0.63 g/cm3; and the silicon carbon nitride in a range of 1.26 g/cm3 to 1.68 g/cm3; wherein a combined weight of the carbon nanotubes and the graphene is less than 40 % by weight. withdrawn
The ceramic matrix composite material of claim 10 wherein: the carbon nanotubes comprise single-wall carbon nanotubes having a length between 0.5 millimeters to 4 millimeters and a diameter between 1 nanometer and 50 nanometers. withdrawn
The ceramic matrix composite material of claim 10 wherein: the graphene comprises nanographene platelets having a platelet size that is 6-8 nm thick and 5-25 microns wide. withdrawn
The ceramic matrix composite material of claim 10 wherein: prior to sintering, the silicon carbon nitride comprises a powder having particle sizes between 0.1 and 1 micrometers in diameter. withdrawn
The ceramic matrix composite material of claim 10 wherein: the carbon nanotubes and the graphene are chemically bonded at a first temperature between 750 degrees Celsius and 950 degrees Celsius. withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
ceramic matrix composite structure
Materials described outside the worked examples.
carbon nanotubes
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 6. During pre-production, exemplary method 500 may include specification and design 504 of the aircraft 502 and material procurement 506. During …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
CMC composite density (claimed) | 2.1 g/cm3 | ceramic matrix composite (CMC) material |
carbon nanotubes partial density in composite (claimed) |
Patent
Atlas literature
Patent
US 10,091,916Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 illustrates an aircraft 100 in an exemplary embodiment. Aircraft 100 may comprise any object capable of flight, including airplanes, drones, missiles, …
FIG. 2 illustrates the CMC material 102 in an exemplary embodiment. The CMC material 102 includes a combination of a ceramic matrix 210, carbon nanotubes 220, …
FIG. 3 is a flowchart illustrating a method 300 for fabricating the CMC material 102 in an exemplary embodiment. The steps of the flowcharts described herein are …
FIG. 4 illustrates a manufacturing system and method 400 for fabricating the CMC material 102 in an exemplary embodiment. The steps described herein are not …
FIG. 5 is a flow diagram of aircraft production and service methodology in an exemplary embodiment. [0014]
FIG. 6. During pre-production, exemplary method 500 may include specification and design 504 of the aircraft 502 and material procurement 506. During …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for forming a ceramic matrix composite structure, the method comprising: providing a mixture of carbon nanotubes, graphene, and silicon carbon nitride; heating the mixture to bond the carbon nanotubes and the graphene; and sintering the silicon carbon nitride in the mixture.
The method of claim 1 further comprising: heating the mixture to a first temperature to initiate chemical bonding between the carbon nanotubes and the graphene; and pressurizing the mixture during heating of the mixture at a second temperature to cause the sintering of the silicon carbon nitride in the mixture at a temperature that is below 1,000 degrees Celsius.
The method of claim 1 wherein: the carbon nanotubes comprise single-wall carbon nanotubes having a length between 0.5 millimeters to 4 millimeters and a diameter between 1 nanometer and 50 nanometers, the carbon nanotubes being in a range of 10-30 % by weight in the mixture; the graphene comprises nanographene platelets having a platelet size that is 6-8 nm thick and 5-25 microns wide, the graphene being in a range of 10-3 0 % by weight in the mixture; the silicon carbon nitride comprises a powder having particle sizes between 0.1 and 1 micrometers in diameter, the silicon carbon nitride being in a range of 60-80 % by weight; and a combined weight of the carbon nanotubes and the graphene in the mixture is less than 40 % by weight.
canceled
A ceramic matrix composite material comprising: carbon nanotubes; graphene chemically bonded to the carbon nanotubes; and silicon carbon nitride sintered in a mixture with the carbon nanotubes and the graphene. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes at approximately 20 % by weight; the graphene at approximately 20 % by weight; and the silicon carbon nitride in a powder form at approximately 60 % by weight. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes in a range of 10-3 0 % by weight; the graphene in a range of 10-3 0 % by weight; and the silicon carbon nitride in a powder form in a range of 60-80 % by weight; wherein a combined weight of the carbon nanotubes and the graphene in the mixture is less than 40 % by weight. withdrawn
The ceramic matrix composite material of claim 10 wherein: the ceramic matrix composite material is approximately 2.1 g/cm3; the carbon nanotubes are approximately 0.42 g/cm3; the graphene is approximately 0.42 g/cm3; and the silicon carbon nitride is approximately 1.26 g/cm3. withdrawn
The ceramic matrix composite material of claim 10 comprising: the carbon nanotubes in a range of 0.21 g/cm3 to 0.63 g/cm3; the graphene in a range of 0.21 g/cm3 to 0.63 g/cm3; and the silicon carbon nitride in a range of 1.26 g/cm3 to 1.68 g/cm3; wherein a combined weight of the carbon nanotubes and the graphene is less than 40 % by weight. withdrawn
The ceramic matrix composite material of claim 10 wherein: the carbon nanotubes comprise single-wall carbon nanotubes having a length between 0.5 millimeters to 4 millimeters and a diameter between 1 nanometer and 50 nanometers. withdrawn
The ceramic matrix composite material of claim 10 wherein: the graphene comprises nanographene platelets having a platelet size that is 6-8 nm thick and 5-25 microns wide. withdrawn
The ceramic matrix composite material of claim 10 wherein: prior to sintering, the silicon carbon nitride comprises a powder having particle sizes between 0.1 and 1 micrometers in diameter. withdrawn
The ceramic matrix composite material of claim 10 wherein: the carbon nanotubes and the graphene are chemically bonded at a first temperature between 750 degrees Celsius and 950 degrees Celsius. withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
ceramic matrix composite structure
Materials described outside the worked examples.
carbon nanotubes
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 6. During pre-production, exemplary method 500 may include specification and design 504 of the aircraft 502 and material procurement 506. During …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
CMC composite density (claimed) | 2.1 g/cm3 | ceramic matrix composite (CMC) material |
carbon nanotubes partial density in composite (claimed) |
silicon carbon nitride
SiCN
ethanol suspension (PS₄ binder)
ceramic matrix composite (CMC) material
| 0.42 g/cm3 |
carbon nanotubes |
graphene partial density in composite (claimed) | 0.42 g/cm3 | graphene |
SiCN partial density in composite (claimed) | 1.26 g/cm3 | SiCN |
CMC composite electrical conductivity (embodiment) | ≥ 3000000 S/m | ceramic matrix composite (CMC) material |
CMC composite density (embodiment, summary) | 2 g/cm3 | ceramic matrix composite (CMC) material |
Thickness | 1–50 nm | — |
Thickness | 0.1–1 µm | — |
Pressure | 297–376 psi | — |
Thickness | 0.5–4 mm | — |
Duration | 1–16 hours | — |
Duration | 3–8 hours | — |
Thickness | 6–8 nm | — |
Thickness | 5–25 µm | — |
Duration | 1–13 hours | — |
Thickness | ≤ 1 nm | — |
silicon carbon nitride
SiCN
ethanol suspension (PS₄ binder)
ceramic matrix composite (CMC) material
| 0.42 g/cm3 |
carbon nanotubes |
graphene partial density in composite (claimed) | 0.42 g/cm3 | graphene |
SiCN partial density in composite (claimed) | 1.26 g/cm3 | SiCN |
CMC composite electrical conductivity (embodiment) | ≥ 3000000 S/m | ceramic matrix composite (CMC) material |
CMC composite density (embodiment, summary) | 2 g/cm3 | ceramic matrix composite (CMC) material |
Thickness | 1–50 nm | — |
Thickness | 0.1–1 µm | — |
Pressure | 297–376 psi | — |
Thickness | 0.5–4 mm | — |
Duration | 1–16 hours | — |
Duration | 3–8 hours | — |
Thickness | 6–8 nm | — |
Thickness | 5–25 µm | — |
Duration | 1–13 hours | — |
Thickness | ≤ 1 nm | — |
silicon carbon nitride
SiCN
ethanol suspension (PS₄ binder)
ceramic matrix composite (CMC) material
| 0.42 g/cm3 |
carbon nanotubes |
graphene partial density in composite (claimed) | 0.42 g/cm3 | graphene |
SiCN partial density in composite (claimed) | 1.26 g/cm3 | SiCN |
CMC composite electrical conductivity (embodiment) | ≥ 3000000 S/m | ceramic matrix composite (CMC) material |
CMC composite density (embodiment, summary) | 2 g/cm3 | ceramic matrix composite (CMC) material |
Thickness | 1–50 nm | — |
Thickness | 0.1–1 µm | — |
Pressure | 297–376 psi | — |
Thickness | 0.5–4 mm | — |
Duration | 1–16 hours | — |
Duration | 3–8 hours | — |
Thickness | 6–8 nm | — |
Thickness | 5–25 µm | — |
Duration | 1–13 hours | — |
Thickness | ≤ 1 nm | — |
silicon carbon nitride
SiCN
ethanol suspension (PS₄ binder)
ceramic matrix composite (CMC) material
| 0.42 g/cm3 |
carbon nanotubes |
graphene partial density in composite (claimed) | 0.42 g/cm3 | graphene |
SiCN partial density in composite (claimed) | 1.26 g/cm3 | SiCN |
CMC composite electrical conductivity (embodiment) | ≥ 3000000 S/m | ceramic matrix composite (CMC) material |
CMC composite density (embodiment, summary) | 2 g/cm3 | ceramic matrix composite (CMC) material |
Thickness | 1–50 nm | — |
Thickness | 0.1–1 µm | — |
Pressure | 297–376 psi | — |
Thickness | 0.5–4 mm | — |
Duration | 1–16 hours | — |
Duration | 3–8 hours | — |
Thickness | 6–8 nm | — |
Thickness | 5–25 µm | — |
Duration | 1–13 hours | — |
Thickness | ≤ 1 nm | — |