Patent
US 10,486,195LOW FRICTION WEAR RESISTANT GRAPHENE FILMS
Anirudha V. Sumant
US
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Atlas literature
Patent
US 10,486,195Claims 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 low friction wear surface comprising: disposing graphene over a substrate; and disposing nanoparticles comprising one or more of nickel and diamond over the graphene; forming a plurality of graphene scrolls on the substrate.
The method of claim 1, wherein the nanoparticles comprise nickel and diamond and further wherein the nanoparticles have a size of about 2nm to about 10 nm.
The method of claim 1, wherein the substrate comprises a material selected from the group consisting of a metal, a transition metal and an insulator.
The method of claim 1, further comprising establishing a dry environment over the substrate.
The method of claim 1, wherein disposing graphene over the substrate comprises spraying a liquid containing graphene onto the substrate.
The method of claim 1, wherein disposing the nanoparticles over the substrate comprises spraying a liquid containing the nanoparticles onto the substrate.
The method of claim 1, further comprising forming a plurality of graphene segments on the graphene layer prior to disposing the nanoparticles.
A method of increasing the wear resistance of a wear surface comprising: disposing graphene over a substrate; and providing hydrogen to the wear surface, wherein the wear surface comprises a graphene layer disposed over the substrate.
The method of claim 12, wherein providing the hydrogen comprises at least one of establishing a hydrogen environment over the wear surface and flowing hydrogen over the wear surface.
The method of claim 12, wherein providing the hydrogen occurs concurrently with or after the wear surface is subjected to wear.
The method of claim 12, wherein the disposed graphene layer is a monolayer.
The method of claim 12, further comprising passivating at least a portion of the graphene with hydrogen.
The method of claim 12, further comprising suppressing oxide formation through reaction of hydrogen with oxygen associated with the substrate.
The method of claim 12, further comprising forming sp 3 clusters by interaction of hydrogen with the graphene.
The method of claim 12, wherein the substrate is comprised of at least one of a metal, a transition metal, and an insulator.
Layer stacks claimed or described, ordered top of device to substrate.
low friction wear surface with graphene and nanoparticles
wear resistant surface with graphene in hydrogen environment
Materials described outside the worked examples.
graphene
nickel nanoparticles
Ni
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
superlubric regime coefficient of friction | ≤ 0.01 dimensionless | graphene |
nickel and diamond nanoparticle size range (claim 2) | 2–10 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,486,195Claims 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 low friction wear surface comprising: disposing graphene over a substrate; and disposing nanoparticles comprising one or more of nickel and diamond over the graphene; forming a plurality of graphene scrolls on the substrate.
The method of claim 1, wherein the nanoparticles comprise nickel and diamond and further wherein the nanoparticles have a size of about 2nm to about 10 nm.
The method of claim 1, wherein the substrate comprises a material selected from the group consisting of a metal, a transition metal and an insulator.
The method of claim 1, further comprising establishing a dry environment over the substrate.
The method of claim 1, wherein disposing graphene over the substrate comprises spraying a liquid containing graphene onto the substrate.
The method of claim 1, wherein disposing the nanoparticles over the substrate comprises spraying a liquid containing the nanoparticles onto the substrate.
The method of claim 1, further comprising forming a plurality of graphene segments on the graphene layer prior to disposing the nanoparticles.
A method of increasing the wear resistance of a wear surface comprising: disposing graphene over a substrate; and providing hydrogen to the wear surface, wherein the wear surface comprises a graphene layer disposed over the substrate.
The method of claim 12, wherein providing the hydrogen comprises at least one of establishing a hydrogen environment over the wear surface and flowing hydrogen over the wear surface.
The method of claim 12, wherein providing the hydrogen occurs concurrently with or after the wear surface is subjected to wear.
The method of claim 12, wherein the disposed graphene layer is a monolayer.
The method of claim 12, further comprising passivating at least a portion of the graphene with hydrogen.
The method of claim 12, further comprising suppressing oxide formation through reaction of hydrogen with oxygen associated with the substrate.
The method of claim 12, further comprising forming sp 3 clusters by interaction of hydrogen with the graphene.
The method of claim 12, wherein the substrate is comprised of at least one of a metal, a transition metal, and an insulator.
Layer stacks claimed or described, ordered top of device to substrate.
low friction wear surface with graphene and nanoparticles
wear resistant surface with graphene in hydrogen environment
Materials described outside the worked examples.
graphene
nickel nanoparticles
Ni
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
superlubric regime coefficient of friction | ≤ 0.01 dimensionless | graphene |
nickel and diamond nanoparticle size range (claim 2) | 2–10 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,486,195Claims 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 low friction wear surface comprising: disposing graphene over a substrate; and disposing nanoparticles comprising one or more of nickel and diamond over the graphene; forming a plurality of graphene scrolls on the substrate.
The method of claim 1, wherein the nanoparticles comprise nickel and diamond and further wherein the nanoparticles have a size of about 2nm to about 10 nm.
The method of claim 1, wherein the substrate comprises a material selected from the group consisting of a metal, a transition metal and an insulator.
The method of claim 1, further comprising establishing a dry environment over the substrate.
The method of claim 1, wherein disposing graphene over the substrate comprises spraying a liquid containing graphene onto the substrate.
The method of claim 1, wherein disposing the nanoparticles over the substrate comprises spraying a liquid containing the nanoparticles onto the substrate.
The method of claim 1, further comprising forming a plurality of graphene segments on the graphene layer prior to disposing the nanoparticles.
A method of increasing the wear resistance of a wear surface comprising: disposing graphene over a substrate; and providing hydrogen to the wear surface, wherein the wear surface comprises a graphene layer disposed over the substrate.
The method of claim 12, wherein providing the hydrogen comprises at least one of establishing a hydrogen environment over the wear surface and flowing hydrogen over the wear surface.
The method of claim 12, wherein providing the hydrogen occurs concurrently with or after the wear surface is subjected to wear.
The method of claim 12, wherein the disposed graphene layer is a monolayer.
The method of claim 12, further comprising passivating at least a portion of the graphene with hydrogen.
The method of claim 12, further comprising suppressing oxide formation through reaction of hydrogen with oxygen associated with the substrate.
The method of claim 12, further comprising forming sp 3 clusters by interaction of hydrogen with the graphene.
The method of claim 12, wherein the substrate is comprised of at least one of a metal, a transition metal, and an insulator.
Layer stacks claimed or described, ordered top of device to substrate.
low friction wear surface with graphene and nanoparticles
wear resistant surface with graphene in hydrogen environment
Materials described outside the worked examples.
graphene
nickel nanoparticles
Ni
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
superlubric regime coefficient of friction | ≤ 0.01 dimensionless | graphene |
nickel and diamond nanoparticle size range (claim 2) | 2–10 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,486,195Claims 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 low friction wear surface comprising: disposing graphene over a substrate; and disposing nanoparticles comprising one or more of nickel and diamond over the graphene; forming a plurality of graphene scrolls on the substrate.
The method of claim 1, wherein the nanoparticles comprise nickel and diamond and further wherein the nanoparticles have a size of about 2nm to about 10 nm.
The method of claim 1, wherein the substrate comprises a material selected from the group consisting of a metal, a transition metal and an insulator.
The method of claim 1, further comprising establishing a dry environment over the substrate.
The method of claim 1, wherein disposing graphene over the substrate comprises spraying a liquid containing graphene onto the substrate.
The method of claim 1, wherein disposing the nanoparticles over the substrate comprises spraying a liquid containing the nanoparticles onto the substrate.
The method of claim 1, further comprising forming a plurality of graphene segments on the graphene layer prior to disposing the nanoparticles.
A method of increasing the wear resistance of a wear surface comprising: disposing graphene over a substrate; and providing hydrogen to the wear surface, wherein the wear surface comprises a graphene layer disposed over the substrate.
The method of claim 12, wherein providing the hydrogen comprises at least one of establishing a hydrogen environment over the wear surface and flowing hydrogen over the wear surface.
The method of claim 12, wherein providing the hydrogen occurs concurrently with or after the wear surface is subjected to wear.
The method of claim 12, wherein the disposed graphene layer is a monolayer.
The method of claim 12, further comprising passivating at least a portion of the graphene with hydrogen.
The method of claim 12, further comprising suppressing oxide formation through reaction of hydrogen with oxygen associated with the substrate.
The method of claim 12, further comprising forming sp 3 clusters by interaction of hydrogen with the graphene.
The method of claim 12, wherein the substrate is comprised of at least one of a metal, a transition metal, and an insulator.
Layer stacks claimed or described, ordered top of device to substrate.
low friction wear surface with graphene and nanoparticles
wear resistant surface with graphene in hydrogen environment
Materials described outside the worked examples.
graphene
nickel nanoparticles
Ni
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
superlubric regime coefficient of friction | ≤ 0.01 dimensionless | graphene |
nickel and diamond nanoparticle size range (claim 2) | 2–10 nm |
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