Patent
US 9,095,941GRAPHENE NANOPLATELET METAL MATRIX
Namsoo Paul Kim, James P. Huang
US
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Patent
Atlas literature
Patent
US 9,095,941Patent drawings and their descriptions. Click a drawing to enlarge it.
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 of forming a graphene metal matrix composite, the method comprising: (a) providing first graphene nanoplatelets having a thickness of less than 100 nm; (b) forming a first substantially uniformly oriented graphene layer comprising the first graphene nanoplatelets oriented in a first direction; (c) disposing the first substantially uniformly oriented graphene layer in a metal matrix material to form a first graphene metal matrix composite layer; (d) providing second graphene nanoplatelets having a thickness of less than 100 nm; (e) forming a second substantially uniformly oriented graphene layer comprising the second graphene nanoplatelets oriented in a second direction; (f) disposing the second substantially uniformly oriented graphene layer in a metal matrix material to form a second graphene metal matrix composite layer; and (g) stacking the first and second graphene metal matrix composite layers to form the graphene metal matrix composite.
The method of claim 1 further comprising: (h) heating the graphene metal matrix composite to densify the graphene metal matrix composite.
The method of claim 1, wherein the first direction of the first oriented graphene layer is substantially orthogonal to the second direction of the second oriented graphene layer.
The method of claim 1, wherein the first and/or second substantially uniformly oriented graphene layer is disposed in the metal matrix by adding metal powder to the first and/or second substantially uniformly oriented graphene layer.
/15
Layer stacks claimed or described, ordered top of device to substrate.
graphene metal matrix composite
heat spreader/thermal management member
Materials described outside the worked examples.
graphene nanoplatelets
metal matrix
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
in-plane thermal conductivity of graphene nanoplatelets | 5300 W/mK | graphene nanoplatelets |
thermal conductivity of copper | 400 W/mK |
Patent
Atlas literature
Patent
US 9,095,941Patent drawings and their descriptions. Click a drawing to enlarge it.
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 of forming a graphene metal matrix composite, the method comprising: (a) providing first graphene nanoplatelets having a thickness of less than 100 nm; (b) forming a first substantially uniformly oriented graphene layer comprising the first graphene nanoplatelets oriented in a first direction; (c) disposing the first substantially uniformly oriented graphene layer in a metal matrix material to form a first graphene metal matrix composite layer; (d) providing second graphene nanoplatelets having a thickness of less than 100 nm; (e) forming a second substantially uniformly oriented graphene layer comprising the second graphene nanoplatelets oriented in a second direction; (f) disposing the second substantially uniformly oriented graphene layer in a metal matrix material to form a second graphene metal matrix composite layer; and (g) stacking the first and second graphene metal matrix composite layers to form the graphene metal matrix composite.
The method of claim 1 further comprising: (h) heating the graphene metal matrix composite to densify the graphene metal matrix composite.
The method of claim 1, wherein the first direction of the first oriented graphene layer is substantially orthogonal to the second direction of the second oriented graphene layer.
The method of claim 1, wherein the first and/or second substantially uniformly oriented graphene layer is disposed in the metal matrix by adding metal powder to the first and/or second substantially uniformly oriented graphene layer.
/15
Layer stacks claimed or described, ordered top of device to substrate.
graphene metal matrix composite
heat spreader/thermal management member
Materials described outside the worked examples.
graphene nanoplatelets
metal matrix
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
in-plane thermal conductivity of graphene nanoplatelets | 5300 W/mK | graphene nanoplatelets |
thermal conductivity of copper | 400 W/mK |
Patent
Atlas literature
Patent
US 9,095,941Patent drawings and their descriptions. Click a drawing to enlarge it.
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 of forming a graphene metal matrix composite, the method comprising: (a) providing first graphene nanoplatelets having a thickness of less than 100 nm; (b) forming a first substantially uniformly oriented graphene layer comprising the first graphene nanoplatelets oriented in a first direction; (c) disposing the first substantially uniformly oriented graphene layer in a metal matrix material to form a first graphene metal matrix composite layer; (d) providing second graphene nanoplatelets having a thickness of less than 100 nm; (e) forming a second substantially uniformly oriented graphene layer comprising the second graphene nanoplatelets oriented in a second direction; (f) disposing the second substantially uniformly oriented graphene layer in a metal matrix material to form a second graphene metal matrix composite layer; and (g) stacking the first and second graphene metal matrix composite layers to form the graphene metal matrix composite.
The method of claim 1 further comprising: (h) heating the graphene metal matrix composite to densify the graphene metal matrix composite.
The method of claim 1, wherein the first direction of the first oriented graphene layer is substantially orthogonal to the second direction of the second oriented graphene layer.
The method of claim 1, wherein the first and/or second substantially uniformly oriented graphene layer is disposed in the metal matrix by adding metal powder to the first and/or second substantially uniformly oriented graphene layer.
/15
Layer stacks claimed or described, ordered top of device to substrate.
graphene metal matrix composite
heat spreader/thermal management member
Materials described outside the worked examples.
graphene nanoplatelets
metal matrix
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
in-plane thermal conductivity of graphene nanoplatelets | 5300 W/mK | graphene nanoplatelets |
thermal conductivity of copper | 400 W/mK |
Patent
Atlas literature
Patent
US 9,095,941Patent drawings and their descriptions. Click a drawing to enlarge it.
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 of forming a graphene metal matrix composite, the method comprising: (a) providing first graphene nanoplatelets having a thickness of less than 100 nm; (b) forming a first substantially uniformly oriented graphene layer comprising the first graphene nanoplatelets oriented in a first direction; (c) disposing the first substantially uniformly oriented graphene layer in a metal matrix material to form a first graphene metal matrix composite layer; (d) providing second graphene nanoplatelets having a thickness of less than 100 nm; (e) forming a second substantially uniformly oriented graphene layer comprising the second graphene nanoplatelets oriented in a second direction; (f) disposing the second substantially uniformly oriented graphene layer in a metal matrix material to form a second graphene metal matrix composite layer; and (g) stacking the first and second graphene metal matrix composite layers to form the graphene metal matrix composite.
The method of claim 1 further comprising: (h) heating the graphene metal matrix composite to densify the graphene metal matrix composite.
The method of claim 1, wherein the first direction of the first oriented graphene layer is substantially orthogonal to the second direction of the second oriented graphene layer.
The method of claim 1, wherein the first and/or second substantially uniformly oriented graphene layer is disposed in the metal matrix by adding metal powder to the first and/or second substantially uniformly oriented graphene layer.
/15
Layer stacks claimed or described, ordered top of device to substrate.
graphene metal matrix composite
heat spreader/thermal management member
Materials described outside the worked examples.
graphene nanoplatelets
metal matrix
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
in-plane thermal conductivity of graphene nanoplatelets | 5300 W/mK | graphene nanoplatelets |
thermal conductivity of copper | 400 W/mK |
copper
Cu
aluminum
Al
graphene nanoplatelet aluminum composite (10 vol%)
graphene nanoplatelet copper composite (10 vol%)
Cu |
thermal conductivity of aluminum | 273 W/mK | Al |
thermal conductivity of ~10 vol% graphene/Al composite | 713 W/mK | graphene nanoplatelet aluminum composite (10 vol%) |
thermal conductivity of ~10 vol% graphene/Cu composite | 860 W/mK | graphene nanoplatelet copper composite (10 vol%) |
density of graphene | 1.7 g/cm3 | graphene nanoplatelets |
Thickness | 200–5000 nm | — |
Thickness | 1–20 mm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 5 nm | — |
Thickness | ≤ 2 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.5 nm | — |
copper
Cu
aluminum
Al
graphene nanoplatelet aluminum composite (10 vol%)
graphene nanoplatelet copper composite (10 vol%)
Cu |
thermal conductivity of aluminum | 273 W/mK | Al |
thermal conductivity of ~10 vol% graphene/Al composite | 713 W/mK | graphene nanoplatelet aluminum composite (10 vol%) |
thermal conductivity of ~10 vol% graphene/Cu composite | 860 W/mK | graphene nanoplatelet copper composite (10 vol%) |
density of graphene | 1.7 g/cm3 | graphene nanoplatelets |
Thickness | 200–5000 nm | — |
Thickness | 1–20 mm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 5 nm | — |
Thickness | ≤ 2 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.5 nm | — |
copper
Cu
aluminum
Al
graphene nanoplatelet aluminum composite (10 vol%)
graphene nanoplatelet copper composite (10 vol%)
Cu |
thermal conductivity of aluminum | 273 W/mK | Al |
thermal conductivity of ~10 vol% graphene/Al composite | 713 W/mK | graphene nanoplatelet aluminum composite (10 vol%) |
thermal conductivity of ~10 vol% graphene/Cu composite | 860 W/mK | graphene nanoplatelet copper composite (10 vol%) |
density of graphene | 1.7 g/cm3 | graphene nanoplatelets |
Thickness | 200–5000 nm | — |
Thickness | 1–20 mm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 5 nm | — |
Thickness | ≤ 2 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.5 nm | — |
copper
Cu
aluminum
Al
graphene nanoplatelet aluminum composite (10 vol%)
graphene nanoplatelet copper composite (10 vol%)
Cu |
thermal conductivity of aluminum | 273 W/mK | Al |
thermal conductivity of ~10 vol% graphene/Al composite | 713 W/mK | graphene nanoplatelet aluminum composite (10 vol%) |
thermal conductivity of ~10 vol% graphene/Cu composite | 860 W/mK | graphene nanoplatelet copper composite (10 vol%) |
density of graphene | 1.7 g/cm3 | graphene nanoplatelets |
Thickness | 200–5000 nm | — |
Thickness | 1–20 mm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 5 nm | — |
Thickness | ≤ 2 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.5 nm | — |