Patent
US 10,093,584SILICON-BASED POLYMER-DERIVED CERAMIC COMPOSITES COMPRISING H-BN NANOSHEETS
SINGH, Gurpreet, DAVID, Lamuel
KANSAS STATE UNIVERSITY RESEARCH FOUNDATION·US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,093,584Patent 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 ceramic composite comprising a matrix of a polymer-derived ceramic and hexagonal boron nitride nanosheets embedded therein, wherein said polymer-derived ceramic is selected from the group consisting of SiCN, SiOC, and combinations thereof.
The ceramic composite of claim 1, wherein said ceramic composite is in the form of discrete particulates, each of said particulates comprising said matrix of polymer- derived ceramic and hexagonal boron nitride nanosheets.
The ceramic composite of claim 1, wherein said ceramic composite is substantially free of fillers selected from the group consisting of carbon nanotubes, nanoparticles, carbon fibers, graphene, molybdenum disulfide, fullerenes, and combinations thereof.
The ceramic composite of claim 1, wherein the weight ratio of polymer- derived ceramic to hexagonal boron nitride nanosheets in said matrix is from about 10:90 to about 90:10.
A structure comprising: a substrate having a surface; and a layer of a polymer-derived ceramic composite according to claim 1, adjacent said substrate surface, -said polymerderived ceramiccomposite comprising a matr-ix-of polymer-derived --ceramic -and hexagonal-boron-nitride nanosheets embedded therein, wherein said=polymer-derived ceramic --is-selected-from=the=group consisting of SiGN-SiOG and- combinationsthereof. 3 Serial No.: Docket No.: 46549-US
11.-20. canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
A method of forming a polymer-derived ceramic, said method comprising: providing a functionalized precursor compound mixture comprising a liquid-phase, silicon- based ceramic precursor compound and hexagonal boron nitride nanosheets; crosslinking said functionalized precursor compound to yield a pre-ceramic composite comprising a crosslinked matrix of said silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets; and converting said silicon-based ceramic precursor compound to ceramic to yield a ceramic composite comprising a polymer-derived ceramic matrix and hexagonal boron nitride nanosheets embedded therein.
The method of claim 21, wherein said silicon-based ceramic precursor compound is selected from the group consisting polysilazane, polysiloxane, and combinations thereof. 4 Serial No.: Docket No.: 46549-US
The method of claim 21, wherein said polymer-derived ceramic is selected from the group consisting of SiCN, SiOC, and combinations thereof.
The method of claim 21, wherein said converting comprises pyrolyzing said crosslinked matrix of said silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets.
The method of claim 21, wherein said functionalized precursor compound mixture is substantially free of fillers selected from the group consisting of carbon nanotubes, nanoparticles, carbon fibers, graphene, molybdenum disulfide, fullerenes, and combinations thereof.
The method of claim 21, wherein said liquid-phase, silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets are non-covalently bonded in said functionalized precursor compound mixture.
The method of claim 21, further comprising providing a mold and filling said mold with said functionalized precursor compound mixture prior to said crosslinking.
-32.. canceled
canceled
canceled
canceled
canceled
A powdered composition comprising a plurality of free-flowing particulates, each of said particulates consisting of ceramic composites comprising a matrix of polymer-derived ceramic and hexagonal boron nitride nanosheets embedded therein, wherein said polymer-derived ceramic is SiCN, said powdered composition having a four-point electrical conductivity of at least 0.115 S/cm.
Layer stacks claimed or described, ordered top of device to substrate.
coated structure with polymer-derived ceramic composite layer
Materials described outside the worked examples.
SiCN
hexagonal boron nitride nanosheets
h-BN
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
four-point electrical conductivity of SiCN/BN powder | 0.115 | SiCN/BN composite |
Temperature |
Patent
Atlas literature
Patent
US 10,093,584Patent 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 ceramic composite comprising a matrix of a polymer-derived ceramic and hexagonal boron nitride nanosheets embedded therein, wherein said polymer-derived ceramic is selected from the group consisting of SiCN, SiOC, and combinations thereof.
The ceramic composite of claim 1, wherein said ceramic composite is in the form of discrete particulates, each of said particulates comprising said matrix of polymer- derived ceramic and hexagonal boron nitride nanosheets.
The ceramic composite of claim 1, wherein said ceramic composite is substantially free of fillers selected from the group consisting of carbon nanotubes, nanoparticles, carbon fibers, graphene, molybdenum disulfide, fullerenes, and combinations thereof.
The ceramic composite of claim 1, wherein the weight ratio of polymer- derived ceramic to hexagonal boron nitride nanosheets in said matrix is from about 10:90 to about 90:10.
A structure comprising: a substrate having a surface; and a layer of a polymer-derived ceramic composite according to claim 1, adjacent said substrate surface, -said polymerderived ceramiccomposite comprising a matr-ix-of polymer-derived --ceramic -and hexagonal-boron-nitride nanosheets embedded therein, wherein said=polymer-derived ceramic --is-selected-from=the=group consisting of SiGN-SiOG and- combinationsthereof. 3 Serial No.: Docket No.: 46549-US
11.-20. canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
A method of forming a polymer-derived ceramic, said method comprising: providing a functionalized precursor compound mixture comprising a liquid-phase, silicon- based ceramic precursor compound and hexagonal boron nitride nanosheets; crosslinking said functionalized precursor compound to yield a pre-ceramic composite comprising a crosslinked matrix of said silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets; and converting said silicon-based ceramic precursor compound to ceramic to yield a ceramic composite comprising a polymer-derived ceramic matrix and hexagonal boron nitride nanosheets embedded therein.
The method of claim 21, wherein said silicon-based ceramic precursor compound is selected from the group consisting polysilazane, polysiloxane, and combinations thereof. 4 Serial No.: Docket No.: 46549-US
The method of claim 21, wherein said polymer-derived ceramic is selected from the group consisting of SiCN, SiOC, and combinations thereof.
The method of claim 21, wherein said converting comprises pyrolyzing said crosslinked matrix of said silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets.
The method of claim 21, wherein said functionalized precursor compound mixture is substantially free of fillers selected from the group consisting of carbon nanotubes, nanoparticles, carbon fibers, graphene, molybdenum disulfide, fullerenes, and combinations thereof.
The method of claim 21, wherein said liquid-phase, silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets are non-covalently bonded in said functionalized precursor compound mixture.
The method of claim 21, further comprising providing a mold and filling said mold with said functionalized precursor compound mixture prior to said crosslinking.
-32.. canceled
canceled
canceled
canceled
canceled
A powdered composition comprising a plurality of free-flowing particulates, each of said particulates consisting of ceramic composites comprising a matrix of polymer-derived ceramic and hexagonal boron nitride nanosheets embedded therein, wherein said polymer-derived ceramic is SiCN, said powdered composition having a four-point electrical conductivity of at least 0.115 S/cm.
Layer stacks claimed or described, ordered top of device to substrate.
coated structure with polymer-derived ceramic composite layer
Materials described outside the worked examples.
SiCN
hexagonal boron nitride nanosheets
h-BN
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
four-point electrical conductivity of SiCN/BN powder | 0.115 | SiCN/BN composite |
Temperature |
Patent
Atlas literature
Patent
US 10,093,584Patent 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 ceramic composite comprising a matrix of a polymer-derived ceramic and hexagonal boron nitride nanosheets embedded therein, wherein said polymer-derived ceramic is selected from the group consisting of SiCN, SiOC, and combinations thereof.
The ceramic composite of claim 1, wherein said ceramic composite is in the form of discrete particulates, each of said particulates comprising said matrix of polymer- derived ceramic and hexagonal boron nitride nanosheets.
The ceramic composite of claim 1, wherein said ceramic composite is substantially free of fillers selected from the group consisting of carbon nanotubes, nanoparticles, carbon fibers, graphene, molybdenum disulfide, fullerenes, and combinations thereof.
The ceramic composite of claim 1, wherein the weight ratio of polymer- derived ceramic to hexagonal boron nitride nanosheets in said matrix is from about 10:90 to about 90:10.
A structure comprising: a substrate having a surface; and a layer of a polymer-derived ceramic composite according to claim 1, adjacent said substrate surface, -said polymerderived ceramiccomposite comprising a matr-ix-of polymer-derived --ceramic -and hexagonal-boron-nitride nanosheets embedded therein, wherein said=polymer-derived ceramic --is-selected-from=the=group consisting of SiGN-SiOG and- combinationsthereof. 3 Serial No.: Docket No.: 46549-US
11.-20. canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
A method of forming a polymer-derived ceramic, said method comprising: providing a functionalized precursor compound mixture comprising a liquid-phase, silicon- based ceramic precursor compound and hexagonal boron nitride nanosheets; crosslinking said functionalized precursor compound to yield a pre-ceramic composite comprising a crosslinked matrix of said silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets; and converting said silicon-based ceramic precursor compound to ceramic to yield a ceramic composite comprising a polymer-derived ceramic matrix and hexagonal boron nitride nanosheets embedded therein.
The method of claim 21, wherein said silicon-based ceramic precursor compound is selected from the group consisting polysilazane, polysiloxane, and combinations thereof. 4 Serial No.: Docket No.: 46549-US
The method of claim 21, wherein said polymer-derived ceramic is selected from the group consisting of SiCN, SiOC, and combinations thereof.
The method of claim 21, wherein said converting comprises pyrolyzing said crosslinked matrix of said silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets.
The method of claim 21, wherein said functionalized precursor compound mixture is substantially free of fillers selected from the group consisting of carbon nanotubes, nanoparticles, carbon fibers, graphene, molybdenum disulfide, fullerenes, and combinations thereof.
The method of claim 21, wherein said liquid-phase, silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets are non-covalently bonded in said functionalized precursor compound mixture.
The method of claim 21, further comprising providing a mold and filling said mold with said functionalized precursor compound mixture prior to said crosslinking.
-32.. canceled
canceled
canceled
canceled
canceled
A powdered composition comprising a plurality of free-flowing particulates, each of said particulates consisting of ceramic composites comprising a matrix of polymer-derived ceramic and hexagonal boron nitride nanosheets embedded therein, wherein said polymer-derived ceramic is SiCN, said powdered composition having a four-point electrical conductivity of at least 0.115 S/cm.
Layer stacks claimed or described, ordered top of device to substrate.
coated structure with polymer-derived ceramic composite layer
Materials described outside the worked examples.
SiCN
hexagonal boron nitride nanosheets
h-BN
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
four-point electrical conductivity of SiCN/BN powder | 0.115 | SiCN/BN composite |
Temperature |
Patent
Atlas literature
Patent
US 10,093,584Patent 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 ceramic composite comprising a matrix of a polymer-derived ceramic and hexagonal boron nitride nanosheets embedded therein, wherein said polymer-derived ceramic is selected from the group consisting of SiCN, SiOC, and combinations thereof.
The ceramic composite of claim 1, wherein said ceramic composite is in the form of discrete particulates, each of said particulates comprising said matrix of polymer- derived ceramic and hexagonal boron nitride nanosheets.
The ceramic composite of claim 1, wherein said ceramic composite is substantially free of fillers selected from the group consisting of carbon nanotubes, nanoparticles, carbon fibers, graphene, molybdenum disulfide, fullerenes, and combinations thereof.
The ceramic composite of claim 1, wherein the weight ratio of polymer- derived ceramic to hexagonal boron nitride nanosheets in said matrix is from about 10:90 to about 90:10.
A structure comprising: a substrate having a surface; and a layer of a polymer-derived ceramic composite according to claim 1, adjacent said substrate surface, -said polymerderived ceramiccomposite comprising a matr-ix-of polymer-derived --ceramic -and hexagonal-boron-nitride nanosheets embedded therein, wherein said=polymer-derived ceramic --is-selected-from=the=group consisting of SiGN-SiOG and- combinationsthereof. 3 Serial No.: Docket No.: 46549-US
11.-20. canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
A method of forming a polymer-derived ceramic, said method comprising: providing a functionalized precursor compound mixture comprising a liquid-phase, silicon- based ceramic precursor compound and hexagonal boron nitride nanosheets; crosslinking said functionalized precursor compound to yield a pre-ceramic composite comprising a crosslinked matrix of said silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets; and converting said silicon-based ceramic precursor compound to ceramic to yield a ceramic composite comprising a polymer-derived ceramic matrix and hexagonal boron nitride nanosheets embedded therein.
The method of claim 21, wherein said silicon-based ceramic precursor compound is selected from the group consisting polysilazane, polysiloxane, and combinations thereof. 4 Serial No.: Docket No.: 46549-US
The method of claim 21, wherein said polymer-derived ceramic is selected from the group consisting of SiCN, SiOC, and combinations thereof.
The method of claim 21, wherein said converting comprises pyrolyzing said crosslinked matrix of said silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets.
The method of claim 21, wherein said functionalized precursor compound mixture is substantially free of fillers selected from the group consisting of carbon nanotubes, nanoparticles, carbon fibers, graphene, molybdenum disulfide, fullerenes, and combinations thereof.
The method of claim 21, wherein said liquid-phase, silicon-based ceramic precursor compound and hexagonal boron nitride nanosheets are non-covalently bonded in said functionalized precursor compound mixture.
The method of claim 21, further comprising providing a mold and filling said mold with said functionalized precursor compound mixture prior to said crosslinking.
-32.. canceled
canceled
canceled
canceled
canceled
A powdered composition comprising a plurality of free-flowing particulates, each of said particulates consisting of ceramic composites comprising a matrix of polymer-derived ceramic and hexagonal boron nitride nanosheets embedded therein, wherein said polymer-derived ceramic is SiCN, said powdered composition having a four-point electrical conductivity of at least 0.115 S/cm.
Layer stacks claimed or described, ordered top of device to substrate.
coated structure with polymer-derived ceramic composite layer
Materials described outside the worked examples.
SiCN
hexagonal boron nitride nanosheets
h-BN
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
four-point electrical conductivity of SiCN/BN powder | 0.115 | SiCN/BN composite |
Temperature |
SiOC
polysilazane
polysiloxane
SiCN/BN composite
| 800–1100 °C |
| — |
Temperature | 800–1000 °C | — |
Thickness | 640–1000 cm | — |
Thickness | 1–200 nm | — |
Duration | 12–48 hours | — |
Temperature | 20–35 °C | — |
Temperature | 700–1500 °C | — |
Temperature | 900–1100 °C | — |
Temperature | 2–10 °C | — |
Duration | 4–12 hours | — |
Thickness | ≤ 1400 cm | — |
Duration | ≥ 12 hours | — |
Duration | ≥ 2 hours | — |
SiOC
polysilazane
polysiloxane
SiCN/BN composite
| 800–1100 °C |
| — |
Temperature | 800–1000 °C | — |
Thickness | 640–1000 cm | — |
Thickness | 1–200 nm | — |
Duration | 12–48 hours | — |
Temperature | 20–35 °C | — |
Temperature | 700–1500 °C | — |
Temperature | 900–1100 °C | — |
Temperature | 2–10 °C | — |
Duration | 4–12 hours | — |
Thickness | ≤ 1400 cm | — |
Duration | ≥ 12 hours | — |
Duration | ≥ 2 hours | — |
SiOC
polysilazane
polysiloxane
SiCN/BN composite
| 800–1100 °C |
| — |
Temperature | 800–1000 °C | — |
Thickness | 640–1000 cm | — |
Thickness | 1–200 nm | — |
Duration | 12–48 hours | — |
Temperature | 20–35 °C | — |
Temperature | 700–1500 °C | — |
Temperature | 900–1100 °C | — |
Temperature | 2–10 °C | — |
Duration | 4–12 hours | — |
Thickness | ≤ 1400 cm | — |
Duration | ≥ 12 hours | — |
Duration | ≥ 2 hours | — |
SiOC
polysilazane
polysiloxane
SiCN/BN composite
| 800–1100 °C |
| — |
Temperature | 800–1000 °C | — |
Thickness | 640–1000 cm | — |
Thickness | 1–200 nm | — |
Duration | 12–48 hours | — |
Temperature | 20–35 °C | — |
Temperature | 700–1500 °C | — |
Temperature | 900–1100 °C | — |
Temperature | 2–10 °C | — |
Duration | 4–12 hours | — |
Thickness | ≤ 1400 cm | — |
Duration | ≥ 12 hours | — |
Duration | ≥ 2 hours | — |