CN107353040A - A kind of vacuum insulation ceramic matric composite - Google Patents
A kind of vacuum insulation ceramic matric composite Download PDFInfo
- Publication number
- CN107353040A CN107353040A CN201710604503.3A CN201710604503A CN107353040A CN 107353040 A CN107353040 A CN 107353040A CN 201710604503 A CN201710604503 A CN 201710604503A CN 107353040 A CN107353040 A CN 107353040A
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- China
- Prior art keywords
- ceramic matric
- matric composite
- backing material
- internal layer
- composite
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5001—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with carbon or carbonisable materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a kind of vacuum insulation ceramic matric composite, it is characterised in that is made up of internal layer backing material and external sheath ceramic matric composite, internal layer backing material is graphite cake, and interior is cavity, and the gas pressure in cavity is less than 1000Pa.External sheath ceramic matric composite be fibre reinforced C/C composites, C/SiC composites, C/C SiC ceramic matrix composite materials.The material can use under 1500 DEG C of environment above, have extremely low thermal conductivity coefficient, can significantly reduce the thickness of heat-insulation layer.
Description
Technical field
The present invention relates to a kind of ceramic matric composite, more particularly to a kind of vacuum insulation ceramic matric composite.
Background technology
Vacuum heat insulation materials are a kind of heat-insulation materials that fast development is got up in recent years, have pair of environmental protection and energy-conservation
Weight advantage, thus be widely used in fields such as refrigerator, buildings.And the resistance used in traditional vacuum heat-insulating plate
Nylon protective layer, aluminium foil layer and polyethylene heat seal layer are generally every film to be formed by stacking, this just determines that the material can only be low
Used under warm environment, the needs of can not meeting in high temperature environments.And ceramic matric composite has intensity height, high temperature oxytolerant
Property is preferable, can high temperature resistant the features such as.Vacuum heat insulation materials are made in ceramic matric composite by the present invention, former using vacuum insulation
Reason is made, and completely cuts off heat transfer by improving internal vacuum to greatest extent, so as to reduce thermal conductivity coefficient.The material has huge
Application prospect, particularly in national defense industry, Aero-Space etc..
Document " Chinese patent of Application No. 200520112605.6 " discloses a kind of vacuum heat-insulating plate.The material includes
There is one layer of nylon protective layer barrier film layer and warming plate, the outer surface of described barrier film layer, and its inner surface has layer of polyethylene
Hot sealing layer.This kind of vacuum heat-insulating plate is made of vacuum insulation principle, completely cuts off heat by improving internal vacuum to greatest extent
Conduction, has extremely low thermal conductivity coefficient, but the material is only used under low temperature environment, can not be used in the case of a high temperature.Text
Offer " composite, Yin Hongfeng, Wei Jian metallurgical industry publishing house " and describe the 2D C/SiC prepared by chemical liquid phase method of impregnation and answer
Condensation material is respectively 14 ~ 20.6 W/mK and 5.9 ~ 7 with the thermal conductivity factor in vertical carbon fiber direction in parallel carbon fiber direction
W/m·K.Document " calculating of unidirectional C/C thermal conductivity of composite materials, Chen Jie, Xiong Xiang, Xiao Peng charcoal element technologies, 2008,27
(2):1-4 " describes unidirectional C/C composites
40.65 ~ 51.12W/mK and 3.83 ~ 5.96W/mK.From data above, for a kind of solid composite, not
Can meet the requirement of extremely low thermal conductivity factor, invention it is a kind of with extremely low thermal conductivity factor and can the material of superhigh temperature resistant then seem pole
To be urgent.
The content of the invention
The technical problem to be solved in the present invention is to overcome traditional vacuum heat-insulating plate not make in high temperature environments
With the problem of, there is provided it is a kind of to use at high temperature, and ceramic matric composite that thermal conductivity factor is extremely low.
Technical scheme is used by realize the purpose of the present invention：A kind of vacuum insulation ceramic matric composite, it is special
Sign is to be made up of internal layer backing material and external sheath ceramic matric composite, and internal layer backing material is graphite cake, its thickness
For 0.5mm ~ 2mm, there is through hole on the surface of plate, and the area in hole accounts for the graphite cake gross area 25 ~ 60%, and plate is shaped as plane, curved surface,
Be cavity in internal layer backing material, the gas pressure in cavity is less than 1000Pa, and external sheath ceramic matric composite is carbon fibre
One kind in the C/C composites, C/SiC composites, C/C-SiC composites of enhancing is tieed up, outer layer ceramics shared by carbon fiber
The volume fraction of based composites is 40 ~ 60%.
The invention has the advantages that：1. it can be used under 1500 DEG C of environment above；2. there is extremely low thermal conductivity coefficient；3.
The thickness of heat-insulation layer can be significantly reduced, saves material, reduces weight.
Brief description of the drawings
Fig. 1 is a kind of sectional view of vacuum insulation ceramic matric composite.
Fig. 2 is the top view of internal layer backing material.
Embodiment
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention, after the present invention has been read, various equivalences of the those skilled in the art to the present invention
The modification of form falls within the application appended claims and limited.
Embodiment one
Reference picture 1, is a kind of sectional view of vacuum insulation ceramic matric composite, and Fig. 2 is the top view of internal layer backing material, one
Kind vacuum insulation ceramic matric composite is made up of internal layer backing material and external sheath ceramic matric composite, wherein [10] are
External sheath ceramic matric composite, [20] are internal layer backing material, and [30] are cavity, and [40] are the logical of backing material surface
Hole.Internal layer backing material is graphite cake, and its thickness is 1mm, and the area of through hole accounts for the graphite cake gross area 40%, and plate is shaped as putting down
Face, the gas pressure in cavity are less than 1000Pa.External sheath ceramic matric composite is the C/SiC composite woods of fibre reinforced
Material, the volume fraction of outer layer ceramic matric composite shared by fiber C are 50%.
Embodiment two
Reference picture 1, is a kind of sectional view of vacuum insulation ceramic matric composite, and Fig. 2 is the top view of internal layer backing material, one
Kind vacuum insulation ceramic matric composite is made up of internal layer backing material and external sheath ceramic matric composite, wherein [10] are
External sheath ceramic matric composite, [20] are internal layer backing material, and [30] are cavity, and [40] are the logical of backing material surface
Hole.Internal layer backing material is graphite cake, and its thickness is 1mm, and the area of through hole accounts for the graphite cake gross area 40%, and plate is shaped as song
Face, the gas pressure in cavity are less than 1000Pa.External sheath ceramic matric composite is the C/C composite woods of fibre reinforced
Material, the volume fraction of outer layer ceramic matric composite shared by fiber C are 60%.
Embodiment three
Reference picture 1, is a kind of sectional view of vacuum insulation ceramic matric composite, and Fig. 2 is the top view of internal layer backing material, one
Kind vacuum insulation ceramic matric composite is made up of internal layer backing material and external sheath ceramic matric composite, wherein [10] are
External sheath ceramic matric composite, [20] are internal layer backing material, and [30] are cavity, and [40] are the logical of backing material surface
Hole.Internal layer backing material is graphite cake, and its thickness is 0.8mm, and the area of through hole accounts for the graphite cake gross area 30%, and plate is shaped as
Curved surface, the gas pressure in cavity are less than 1000Pa.External sheath ceramic matric composite is answered for the C/C-SiC of fibre reinforced
Condensation material, the volume fraction of outer layer ceramic matric composite shared by fiber C are 50%.
Claims (1)
1. a kind of vacuum insulation ceramic matric composite, it is characterised in that compound by internal layer backing material and external sheath ceramic base
Material is formed, and internal layer backing material is graphite cake, and its thickness is 0.5mm ~ 2mm, and there is through hole on the surface of plate, and the area in hole accounts for graphite
The plate gross area 25 ~ 60%, plate are shaped as plane, curved surface, are cavity in internal layer backing material, and the gas pressure in cavity is less than
1000Pa, external sheath ceramic matric composite are C/C composites, C/SiC composites, the C/C-SiC of fibre reinforced
One kind in composite, the volume fraction of outer layer ceramic matric composite shared by carbon fiber are 40 ~ 60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604503.3A CN107353040B (en) | 2017-07-24 | 2017-07-24 | Vacuum heat insulation ceramic matrix composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604503.3A CN107353040B (en) | 2017-07-24 | 2017-07-24 | Vacuum heat insulation ceramic matrix composite |
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| Publication Number | Publication Date |
|---|---|
| CN107353040A true CN107353040A (en) | 2017-11-17 |
| CN107353040B CN107353040B (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710604503.3A Active CN107353040B (en) | 2017-07-24 | 2017-07-24 | Vacuum heat insulation ceramic matrix composite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725973A (en) * | 2017-11-21 | 2018-02-23 | 苏州宏久航空防热材料科技有限公司 | A kind of vacuum insulation ceramic matric composite |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3860445A (en) * | 1959-03-10 | 1975-01-14 | Atomic Energy Commission | Method for producing refractory carbide coatings on graphite |
| CN1693062A (en) * | 2005-04-18 | 2005-11-09 | 山东大学 | High temp. carbon fibre composite furnace tube and mfg. tech. thereof |
| CN102515871A (en) * | 2011-11-23 | 2012-06-27 | 西安超码科技有限公司 | Preparation method of carbon/carbon heater anti-scour C/SiC coating |
| CN102887665A (en) * | 2012-08-16 | 2013-01-23 | 中科恒达石墨股份有限公司 | Novel graphite powder and radiator made of novel graphite powder |
| CN105586637A (en) * | 2014-11-17 | 2016-05-18 | 镇江荣德新能源科技有限公司 | Heat insulation material having composite structure and used for polycrystalline silicon ingot casting |
-
2017
- 2017-07-24 CN CN201710604503.3A patent/CN107353040B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3860445A (en) * | 1959-03-10 | 1975-01-14 | Atomic Energy Commission | Method for producing refractory carbide coatings on graphite |
| CN1693062A (en) * | 2005-04-18 | 2005-11-09 | 山东大学 | High temp. carbon fibre composite furnace tube and mfg. tech. thereof |
| CN102515871A (en) * | 2011-11-23 | 2012-06-27 | 西安超码科技有限公司 | Preparation method of carbon/carbon heater anti-scour C/SiC coating |
| CN102887665A (en) * | 2012-08-16 | 2013-01-23 | 中科恒达石墨股份有限公司 | Novel graphite powder and radiator made of novel graphite powder |
| CN105586637A (en) * | 2014-11-17 | 2016-05-18 | 镇江荣德新能源科技有限公司 | Heat insulation material having composite structure and used for polycrystalline silicon ingot casting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725973A (en) * | 2017-11-21 | 2018-02-23 | 苏州宏久航空防热材料科技有限公司 | A kind of vacuum insulation ceramic matric composite |
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| Publication number | Publication date |
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| CN107353040B (en) | 2020-10-30 |
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