CN114619718A - 一种宽频吸波复合材料及其制备方法 - Google Patents
一种宽频吸波复合材料及其制备方法 Download PDFInfo
- Publication number
- CN114619718A CN114619718A CN202011435625.2A CN202011435625A CN114619718A CN 114619718 A CN114619718 A CN 114619718A CN 202011435625 A CN202011435625 A CN 202011435625A CN 114619718 A CN114619718 A CN 114619718A
- Authority
- CN
- China
- Prior art keywords
- composite material
- layer
- silicon carbide
- absorbing
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 76
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 230000000737 periodic effect Effects 0.000 claims abstract description 32
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical group [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 6
- 239000004917 carbon fiber Substances 0.000 claims abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims abstract description 5
- 239000002905 metal composite material Substances 0.000 claims abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical class O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 3
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 13
- HSEYYGFJBLWFGD-UHFFFAOYSA-N 4-methylsulfanyl-2-[(2-methylsulfanylpyridine-3-carbonyl)amino]butanoic acid Chemical compound CSCCC(C(O)=O)NC(=O)C1=CC=CN=C1SC HSEYYGFJBLWFGD-UHFFFAOYSA-N 0.000 claims description 12
- 229920003257 polycarbosilane Polymers 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 10
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 9
- 229910052582 BN Inorganic materials 0.000 claims description 8
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 8
- 239000004327 boric acid Substances 0.000 claims description 8
- 239000004202 carbamide Substances 0.000 claims description 8
- 238000005336 cracking Methods 0.000 claims description 8
- 238000005470 impregnation Methods 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- 230000004048 modification Effects 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 238000001465 metallisation Methods 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000000197 pyrolysis Methods 0.000 claims description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 230000004584 weight gain Effects 0.000 claims description 4
- 235000019786 weight gain Nutrition 0.000 claims description 4
- 239000008096 xylene Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 3
- 238000010147 laser engraving Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 9
- 239000011153 ceramic matrix composite Substances 0.000 abstract 1
- 239000011358 absorbing material Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011208 reinforced composite material Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000012745 toughening agent Substances 0.000 description 2
- 229910021543 Nickel dioxide Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229940024548 aluminum oxide Drugs 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62844—Coating fibres
- C04B35/62857—Coating fibres with non-oxide ceramics
- C04B35/62865—Nitrides
- C04B35/62868—Boron nitride
-
- 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
-
- 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
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- 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
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
- C04B41/90—Coating or impregnation for obtaining at least two superposed coatings having different compositions at least one coating being a metal
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/443—Nitrates or nitrites
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/448—Sulphates or sulphites
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
本发明公开了一种宽频吸波复合材料，由耐低温反射层、耐中温损耗层、耐高温匹配层依次叠层而成，匹配层是具有周期性结构的金属或碳纤维、氧化物复合材料，损耗层为改性碳化硅陶瓷基复合材料，反射层为低气孔率的金属复合材料。该复合材料的制备方法包括：纤维预制体除胶处理、界面制备、改性碳化硅基体制备、表面金属层制备、周期性结构制备及填充。该发明方法制备的复合材料的结构强度高，在吸波的同时可以实现承载功能，有效减少部件的重量，同时吸波性能稳定，即使在高温承载环境下也具有较为稳定的电磁波吸收能力，厚度薄，吸收频带宽，对电磁波的吸收具有可调谐性，具有较高的应用价值。
Description
技术领域
本发明涉及一种吸波材料及其制备方法，尤其涉及一种宽频吸波复合材料及其制备方法。
背景技术
电子通讯技术的飞速发展对于高超声速飞行器、舰艇的结构部件提出了更多的要求，在保证其结构强度的前提下，对于各部位的隐身性能需求也随之提高，不仅要求对电磁波的吸收能力强，同时要尽可能地拓宽其吸收带宽。
目前使用较多的隐身材料为吸波涂料，对于带宽的拓展及吸收频率的控制借助于周期性结构的吸波器来实现，两者独立性较大，就算将其进行结合，材料的结构强度与耐温性能十分有限。
申请公告号为CN110423506A的中国发明专利公开了一种可低温快速固化雷达吸波涂料，该可低温快速固化雷达吸波涂料由A、B两组分组成，其中A组分的组成及质量百分比为：树脂基体7.2～35.0％，雷达波吸收剂40.0～64.0％，分散剂0.5～2.0％，抗沉剂0.4～1.0％，触变剂1.5～5.0％，稀释剂17.0～21.8％；所述B组分为胺类固化剂，A、B组分质量比为7～ 36∶1。发明提供的可低温快速固化雷达吸波涂料在低温(-25℃～-5℃)条件下可2天内快速固化、施工周期短，同时具有雷达波吸波性能好，力学性能优异等特点，且雷达吸波涂料固化后电性能和力学性能随时间波动小，性能一致性强。
申请公告号为CN106572622A的中国发明专利公开了一种宽频段吸波体，包括介电层、电阻层和反射层，其中电阻层位于介电层表面，所述反射层位于所述宽频段吸波体的底层，介电层位于反射层上方；所述电阻层为连续层或者由周期性结构重复组成的阵列，所述周期性结构的尺寸为0.01mm～50mm，周期性结构的形状为点、线段、三角形、四边形、多边形、圆形、椭圆中的一种或多种的组合。该发明提出的宽频段吸波体通过合理的结构设计与计算，厚度薄，吸收频段宽。
申请公告号为CN106868676B的中国发明专利公开了一种宽带轻质超材料吸波结构。该超材料的结构单元为蚊香形镂空图案，尺寸为1～3cm，在180×180mm的基板上呈5×5、8 ×8、14×14的二维阵列分布。吸收剂与石蜡按一定的质量分数混合而成的微波吸收材料，将其填充到具有超材料的FR4或聚四氟乙烯基板的镂空缝隙中。该超材料吸波结构具有显著的宽频-轻质微波吸收效应；在1～40GHz频率范围内，小于-10dB的有效带宽为3.5～16.8GHz；面密度为0.081～0.932kg·m2；厚度为0.5～2mm。本发明的设计思路新颖，具有宽带-轻质吸波特性，制备过程简单、原料廉价易得，成本低、易于应用推广，所得的超材料在微波隐身技术、天线、安检、热辐射探测、热辐射成像和无损探测等领域具有广阔的应用前景。
授权公告号CN108148461B的中国发明专利公开了具有周期性结构中涂的吸波涂层，属于涂料技术领域。解决了现有涂层技术中由于纤维布的连续性带来的中间层存在扩展性破坏风险的问题。本发明的吸波涂层，由从内至外依次紧密排列的底涂、吸波层、中涂和面涂组成；底涂由环氧底漆与环氧底漆固化剂组成，吸收层由环氧树脂、低分子聚酰胺固化剂、磁性吸收剂、分散剂、增韧剂、消泡剂和流平剂组成，中涂上具有周期性开孔单元，主要材料为浸润环氧树脂、聚酰胺树脂固化剂、增韧剂和填充剂的混合液的玻璃纤维布，面涂由耐磨涂料和防腐涂料组成。该涂层各层综合作用，具备优异的防腐蚀性，耐磨性和抗冲击性，正拉伸强度可达到16MPa以上，高于不含有周期性结构中涂的涂层力学强度。
目前，所公布的吸波材料的性能较为单一，吸波性能与结构强度、耐温性能等通常只能取其一，要么为吸波涂覆材料，要么为吸波器的结构研究，就算涉及周期性结构，也通常将其使用在涂覆材料中，应用条件十分有限，所以研究开发具有周期性结构的耐高温结构吸波材料具有十分重要的实用价值。
发明内容
为解决上述问题，本发明提出一种宽频吸波复合材料，由耐低温反射层、耐中温损耗层、耐高温匹配层依次叠层而成，所述反射层位于复合材料的底部，为气孔率0～10％的金属材料，厚度为0.01～3mm；所述损耗层位于复合材料的中部，为碳/碳化硅复合材料、碳化硅/碳化硅复合材料，厚度为1～5mm；所述匹配层位于复合材料的表面，为金属或碳纤维、氧化物复合材料，具有周期性结构，厚度为0.01～2mm。
进一步地，所述的损耗层为纤维预制体增强复合材料，纤维的电阻率为10-1～102Ω·cm，纤维预制体外具有氮化硼界面层，基体为改性的碳化硅基体，复合材料的体积电阻率为 0.01～500Ω·m。
更进一步地，所述的匹配层的周期性结构为圆形图案、环形图案、多边形图案中的1～3 种，周期性图案的间距为5～50mm，图案部分为金属复合材料、碳纤维复合材料，图案上部使用二氧化硅进行填充。
一种宽频吸波复合材料的制备方法，其特征在于包括以下顺序的步骤：
步骤1，对纤维预制体在真空或惰性气氛、600℃～1200℃进行除胶处理；
步骤2，使用硼酸和尿素对除胶后的纤维预制体进行浸渍涂覆制备氮化硼界面，硼酸尿素的摩尔分数比为1∶12～1∶1；
步骤3，通过浸渍-热解对纤维预制体制备改性碳化硅基体；
步骤4，加工复合材料介质层的表面，对复合材料的上下表面分别通过真空浸渗或者电镀制备金属化层；
步骤5，加工金属化层，针对外表面通过电化学刻蚀、激光雕刻、数控加工制备周期性结构，并在周期性结构外使用硅溶胶制备二氧化硅填充物。
进一步地，所述步骤3中，改性碳化硅基体的制备方法为第一个周期使用聚碳硅烷的二甲苯溶液(二者的质量比为1∶1)，采用聚合物浸渍裂解法制备，对复合材料称重，测量增重率；第二个周期进行改性，具体为使用硝酸铁、硫酸铝铵水溶液对复合材料进行真空浸渍低温裂解；之后重复第一个周期过程，直至复合材料的增重0.5％～1.5％。
更进一步地，所述的用于改性的硝酸铁、硫酸铝铵水溶液中硝酸铁的质量占溶液的 20％～30％，硫酸铝铵质量占溶液的10％～20％。
与现有材料及技术相比，本发明具有如下有益效果：(1)复合材料的结构强度高，在吸波的同时可以实现承载功能，有效减少部件的重量；(2)复合材料的耐高温性能优异；(3) 复合材料的吸波性能稳定，即使在高温承载环境下也具有较为稳定的电磁波吸收能力；(4) 材料厚度薄，吸收频带宽，对电磁波的吸收具有可调谐性。
附图说明
图1是本发明实施例1提供的一种宽频吸波复合材料示意图。
1为匹配层，2为损耗层，3为反射层。
图2是本发明实施例1提供的宽频吸波复合材料的周期性结构示意图。
1为金属铝，2为二氧化硅填充物。
具体实施方式
下面结合具体实施例，进一步阐明本发明，应理解这些实施例仅用于说明本发明而不用于限制本发明的范围，在阅读了本发明之后，本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定。
实施例1
参见图1为一种宽频吸波复合材料，由耐低温反射层、耐中温损耗层、耐高温匹配层依次叠层而成，所述反射层位于复合材料的底部，为气孔率2％的金属铝，厚度为0.5mm；所述损耗层位于复合材料的中部，为碳/碳化硅复合材料，厚度为3.4mm；所述匹配层位于复合材料的表面，为金属铝与二氧化硅复合材料，具有周期性结构，厚度为0.5mm，参见图2。
进一步地，所述的损耗层为纤维预制体增强复合材料，纤维的电阻率为10-1Ω·cm，纤维预制体外具有氮化硼界面层，基体为改性的碳化硅基体，复合材料的体积电阻率为50Ω·m。
更进一步地，所述的匹配层的周期性结构为圆形图案和边数为12的十字形图案，周期性图案的间距为8mm，图案部分为金属复合材料、碳纤维复合材料，图案上部使用二氧化硅进行填充。
一种宽频吸波复合材料的制备方法，其特征在于包括以下顺序的步骤：
步骤1，对纤维预制体在惰性气氛、700℃进行除胶处理；
步骤2，使用硼酸和尿素对除胶后的纤维预制体进行浸渍涂覆制备氮化硼界面，硼酸尿素的摩尔分数比为1∶12～1∶1；
步骤3，通过浸渍-热解对纤维预制体制备改性碳化硅基体；
步骤4，加工复合材料介质层的表面，对复合材料的上下表面分别通过真空浸渗金属化铝层；
步骤5，加工金属化层，针对外表面通过激光雕刻制备周期性结构，并在周期性结构外使用硅溶胶制备二氧化硅填充物。
进一步地，所述步骤3中，改性碳化硅基体的制备方法为第一个周期使用聚碳硅烷的二甲苯溶液(二者的质量比为1∶1)，采用聚合物浸渍裂解法制备，对复合材料称重，测量增重率；第二个周期进行改性，具体为使用硝酸铁、硫酸铝铵水溶液对复合材料进行真空浸渍低温裂解；之后重复第一个周期过程，直至复合材料的增重小于1％。
更进一步地，所述的用于改性的硝酸铁、硫酸铝铵水溶液中硝酸铁的质量占溶液的30％，硫酸铝铵质量占溶液的10％。
制备的上述复合材料在8.2-18.0GHz频段电磁波的介电损耗正切值为0.2-0.5，在X波段的最高反射率可达-20.1dB，复合材料的弯曲强度可达266MPa，由于吸波性能和弯曲强度表现优异，同时材料具有较好的耐温性能，在耐高温结构吸波领域有重要应用价值。
实施例2
一种宽频吸波复合材料，由耐低温反射层、耐中温损耗层、耐高温匹配层依次叠层而成，所述反射层位于复合材料的底部，为气孔率1％的金属材料，厚度为0.6mm；所述损耗层位于复合材料的中部，为碳化硅/碳化硅复合材料，厚度为4.5mm；所述匹配层位于复合材料的表面，为金属镍与二氧化硅复合材料，具有周期性结构，厚度为0.01～2mm。
进一步地，所述的损耗层为纤维预制体增强复合材料，纤维的电阻率为102Ω·cm，纤维预制体外具有氮化硼界面层，基体为改性的碳化硅基体，复合材料的体积电阻率为150Ω·m。
更进一步地，所述的匹配层的周期性结构为六边形图案，边长为8mm，周期性图案的间距为10mm，图案部分为金属镍，图案上部使用二氧化硅进行填充。
一种宽频吸波复合材料的制备方法，其特征在于包括以下顺序的步骤：
步骤1，对纤维预制体在真空或惰性气氛、900℃进行除胶处理；
步骤2，使用硼酸和尿素对除胶后的纤维预制体进行浸渍涂覆制备氮化硼界面，硼酸尿素的摩尔分数比为1∶11；
步骤3，通过浸渍-热解对纤维预制体制备改性碳化硅基体；
步骤4，加工复合材料介质层的表面，对复合材料的上下表面分别通过电镀制备金属化镍层；
步骤5，加工金属化层，针对外表面通过数控加工制备周期性结构，并在周期性结构外使用硅溶胶制备二氧化硅填充物。
进一步地，所述步骤3中，改性碳化硅基体的制备方法为第一个周期使用聚碳硅烷的二甲苯溶液(二者的质量比为1∶1)，采用聚合物浸渍裂解法制备，对复合材料称重，测量增重率；第二个周期进行改性，具体为使用硝酸铁、硫酸铝铵水溶液对复合材料进行真空浸渍低温裂解；之后重复第一个周期过程，直至复合材料的增重小于1％。
更进一步地，所述的用于改性的硝酸铁、硫酸铝铵水溶液中硝酸铁的质量占溶液的25％，硫酸铝铵质量占溶液的20％。
制备的上述复合材料的密度低于2.6g/cm3，耐高温性能好(高达1200℃)，高温下抗弯强度可达280MPa，抗氧化性能优异，同时具有较好的反射率(低至-13.4dB)，吸波带宽达5.5GHz。
上述仅为本发明的具体实施方式，但本发明的设计构思并不局限于此，凡利用此构思对本发明进行非实质性的改动，均应属于侵犯本发明保护的范围的行为。但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何形式的简单修改、等同变化与改型，仍属于本发明技术方案的保护范围。
Claims (6)
1.一种宽频吸波复合材料，由耐低温反射层、耐中温损耗层、耐高温匹配层依次叠层而成，所述反射层位于复合材料的底部，为气孔率0～10％的金属材料，厚度为0.01～3mm；所述损耗层位于复合材料的中部，为碳/碳化硅复合材料、碳化硅/碳化硅复合材料，厚度为1～5mm；所述匹配层位于复合材料的表面，为金属或碳纤维、氧化物复合材料，具有周期性结构，厚度为0.01～2mm。
2.根据权利要求1所述的宽频吸波复合材料，其特征在于所述的损耗层为纤维预制体增强复合材料，纤维的电阻率为10-1～102Ω·cm，纤维预制体外具有氮化硼界面层，基体为改性的碳化硅基体，复合材料的体积电阻率为0.01～500Ω·m。
3.根据权利要求1所述的宽频吸波复合材料，其特征在于所述的匹配层的周期性结构为圆形图案、环形图案、多边形图案中的1～3种，周期性图案的间距为5～50mm，图案部分为金属复合材料、碳纤维复合材料，图案上部使用二氧化硅进行填充。
4.一种宽频吸波复合材料的制备方法，其特征在于包括以下顺序的步骤：
步骤1，对纤维预制体在真空或惰性气氛、600℃～1200℃进行除胶处理；
步骤2，使用硼酸和尿素对除胶后的纤维预制体进行浸渍涂覆制备氮化硼界面，硼酸尿素的摩尔分数比为1∶12～1∶1；
步骤3，通过浸渍-热解对纤维预制体制备改性碳化硅基体；
步骤4，加工复合材料介质层的表面，对复合材料的上下表面分别通过真空浸渗或者电镀制备金属化层；
步骤5，加工金属化层，针对外表面通过电化学刻蚀、激光雕刻、数控加工制备周期性结构，并在周期性结构外使用硅溶胶制备二氧化硅填充物。
5.根据权利要求4所述的制备方法，其特征在于所述步骤3中，改性碳化硅基体的制备方法为第一个周期使用聚碳硅烷的二甲苯溶液(二者的质量比为1∶1)，采用聚合物浸渍裂解法制备，对复合材料称重，测量增重率；第二个周期进行改性，具体为使用硝酸铁、硫酸铝铵水溶液对复合材料进行真空浸渍低温裂解；之后重复第一个周期过程，直至复合材料的增重0.5％～1.5％。
6.根据权利要求5所述的改性碳化硅基体制备方法，其特征在于所述的用于改性的硝酸铁、硫酸铝铵水溶液中硝酸铁的质量占溶液的20％～30％，硫酸铝铵质量占溶液的10％～20％。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435625.2A CN114619718A (zh) | 2020-12-10 | 2020-12-10 | 一种宽频吸波复合材料及其制备方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435625.2A CN114619718A (zh) | 2020-12-10 | 2020-12-10 | 一种宽频吸波复合材料及其制备方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114619718A true CN114619718A (zh) | 2022-06-14 |
Family
ID=81894816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011435625.2A Pending CN114619718A (zh) | 2020-12-10 | 2020-12-10 | 一种宽频吸波复合材料及其制备方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114619718A (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116082060A (zh) * | 2023-03-07 | 2023-05-09 | 西安邮电大学 | 一种具有取向微孔的梯度吸波复合陶瓷超材料及制备方法 |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2592395A1 (fr) * | 1985-12-26 | 1987-07-03 | Grandclement Gilbert | Procede de realisation d'un reflecteur d'ondes hyperfrequences par depot ionique sur matiere plastique injectee. |
| JP2005184012A (ja) * | 2003-05-28 | 2005-07-07 | Nitta Ind Corp | 電磁波吸収体 |
| JP2006128664A (ja) * | 2004-09-29 | 2006-05-18 | Nitta Ind Corp | 電磁波吸収体 |
| CN101734922A (zh) * | 2008-11-27 | 2010-06-16 | 北京有色金属研究总院 | 高导热微波衰减器材料及其制备方法 |
| CN102180695A (zh) * | 2011-03-04 | 2011-09-14 | 中国人民解放军国防科学技术大学 | 碳化硅复合材料的吸波陶瓷及其制备方法 |
| CN102211938A (zh) * | 2011-03-07 | 2011-10-12 | 中国人民解放军国防科学技术大学 | 一种碳化硅复合材料的吸波陶瓷及其制备方法 |
| CN103582400A (zh) * | 2012-08-03 | 2014-02-12 | 深圳光启创新技术有限公司 | 一种宽频吸波超材料 |
| CN104360424A (zh) * | 2014-10-19 | 2015-02-18 | 北京工业大学 | 一种基于l型结构的宽带太赫兹超材料吸收器 |
| CN106431448A (zh) * | 2016-10-20 | 2017-02-22 | 中南大学 | 一种氮化硼/碳化硅复合涂层及其制备方法 |
| CN106572622A (zh) * | 2016-11-02 | 2017-04-19 | 国家纳米科学中心 | 一种宽频段吸波体及其制备方法 |
| CN106811175A (zh) * | 2017-01-11 | 2017-06-09 | 中国人民解放军空军工程大学 | 一种水溶液基宽带吸波超材料及其制备方法 |
| CN108148461A (zh) * | 2017-11-27 | 2018-06-12 | 中国科学院长春应用化学研究所 | 具有周期性结构中涂的吸波涂层及其制备方法 |
| CN108601317A (zh) * | 2018-05-25 | 2018-09-28 | 浙江师范大学 | 一种宽带轻质超材料吸波结构的制备与应用 |
| CN109532143A (zh) * | 2018-12-04 | 2019-03-29 | 北京机电工程研究所 | 一种防/隔热隐身一体化蒙皮及其制备方法 |
| CN109553430A (zh) * | 2019-01-16 | 2019-04-02 | 苏州宏久航空防热材料科技有限公司 | 一种具有复合界面的SiCf/SiC陶瓷基复合材料及其制备方法 |
| CN109677038A (zh) * | 2018-12-04 | 2019-04-26 | 北京机电工程研究所 | 一种兼容耐温性能与力学性能的超宽频吸波结构及其制备方法 |
| CN110078516A (zh) * | 2019-05-14 | 2019-08-02 | 西北工业大学 | 高体积分数短纤维增强准各向同性SiCf/SiC复合材料的制备方法 |
| CN111244635A (zh) * | 2020-01-15 | 2020-06-05 | 合肥工业大学 | 一种超材料吸波体 |
| CN111841570A (zh) * | 2020-07-24 | 2020-10-30 | 中国科学技术大学 | 一种近红外-可见光谱宽频吸收超材料及其制备方法 |
-
2020
- 2020-12-10 CN CN202011435625.2A patent/CN114619718A/zh active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2592395A1 (fr) * | 1985-12-26 | 1987-07-03 | Grandclement Gilbert | Procede de realisation d'un reflecteur d'ondes hyperfrequences par depot ionique sur matiere plastique injectee. |
| JP2005184012A (ja) * | 2003-05-28 | 2005-07-07 | Nitta Ind Corp | 電磁波吸収体 |
| JP2006128664A (ja) * | 2004-09-29 | 2006-05-18 | Nitta Ind Corp | 電磁波吸収体 |
| CN101734922A (zh) * | 2008-11-27 | 2010-06-16 | 北京有色金属研究总院 | 高导热微波衰减器材料及其制备方法 |
| CN102180695A (zh) * | 2011-03-04 | 2011-09-14 | 中国人民解放军国防科学技术大学 | 碳化硅复合材料的吸波陶瓷及其制备方法 |
| CN102211938A (zh) * | 2011-03-07 | 2011-10-12 | 中国人民解放军国防科学技术大学 | 一种碳化硅复合材料的吸波陶瓷及其制备方法 |
| CN103582400A (zh) * | 2012-08-03 | 2014-02-12 | 深圳光启创新技术有限公司 | 一种宽频吸波超材料 |
| CN104360424A (zh) * | 2014-10-19 | 2015-02-18 | 北京工业大学 | 一种基于l型结构的宽带太赫兹超材料吸收器 |
| CN106431448A (zh) * | 2016-10-20 | 2017-02-22 | 中南大学 | 一种氮化硼/碳化硅复合涂层及其制备方法 |
| CN106572622A (zh) * | 2016-11-02 | 2017-04-19 | 国家纳米科学中心 | 一种宽频段吸波体及其制备方法 |
| CN106811175A (zh) * | 2017-01-11 | 2017-06-09 | 中国人民解放军空军工程大学 | 一种水溶液基宽带吸波超材料及其制备方法 |
| CN108148461A (zh) * | 2017-11-27 | 2018-06-12 | 中国科学院长春应用化学研究所 | 具有周期性结构中涂的吸波涂层及其制备方法 |
| CN108601317A (zh) * | 2018-05-25 | 2018-09-28 | 浙江师范大学 | 一种宽带轻质超材料吸波结构的制备与应用 |
| CN109532143A (zh) * | 2018-12-04 | 2019-03-29 | 北京机电工程研究所 | 一种防/隔热隐身一体化蒙皮及其制备方法 |
| CN109677038A (zh) * | 2018-12-04 | 2019-04-26 | 北京机电工程研究所 | 一种兼容耐温性能与力学性能的超宽频吸波结构及其制备方法 |
| CN109553430A (zh) * | 2019-01-16 | 2019-04-02 | 苏州宏久航空防热材料科技有限公司 | 一种具有复合界面的SiCf/SiC陶瓷基复合材料及其制备方法 |
| CN110078516A (zh) * | 2019-05-14 | 2019-08-02 | 西北工业大学 | 高体积分数短纤维增强准各向同性SiCf/SiC复合材料的制备方法 |
| CN111244635A (zh) * | 2020-01-15 | 2020-06-05 | 合肥工业大学 | 一种超材料吸波体 |
| CN111841570A (zh) * | 2020-07-24 | 2020-10-30 | 中国科学技术大学 | 一种近红外-可见光谱宽频吸收超材料及其制备方法 |
Non-Patent Citations (1)
| Title |
|---|
| 周健儿;张小珍;胡学兵;彭仕江;: "SiC陶瓷表面高温耐碱腐蚀Ca_(0.6)Mg_(0.4)Zr_4(PO_4)_6涂层的制备", 稀有金属材料与工程, no. 2, pages 755 - 758 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116082060A (zh) * | 2023-03-07 | 2023-05-09 | 西安邮电大学 | 一种具有取向微孔的梯度吸波复合陶瓷超材料及制备方法 |
| CN116082060B (zh) * | 2023-03-07 | 2024-04-12 | 西安邮电大学 | 一种具有取向微孔的梯度吸波复合陶瓷超材料及制备方法 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110165414A (zh) | 一种用于宽带RCS减缩的反射型宽带4-bit编码超表面 | |
| CN109720027B (zh) | 一种基于金属涂层的耐高温结构吸波材料及其制备方法 | |
| US20150042502A1 (en) | Electromagnetic radiation attenuator | |
| CN110336136B (zh) | 一种吸波/散射一体化隐身超材料 | |
| CN114619718A (zh) | 一种宽频吸波复合材料及其制备方法 | |
| CN213073498U (zh) | 基于3d打印的电磁屏蔽碳纤维增强复合材料 | |
| US9799941B2 (en) | Harmonic oscillator and preparation method thereof, filtering device and electromagnetic wave device | |
| CN113555694B (zh) | 一种电阻膜频率选择表面复合吸波体及其制备方法 | |
| CN111086301A (zh) | 一种超结构蜂窝复合吸波材料 | |
| CN215040968U (zh) | 一种结构/隐身一体化复合材料及飞机蒙皮或舰船舱板结构 | |
| CN112928481B (zh) | 一种工作在c波段的耐高温宽带rcs减缩超表面结构 | |
| CN112702900B (zh) | 一种超材料吸波体 | |
| CN102905508A (zh) | 一种混合吸波材料 | |
| CN113293364B (zh) | 一种连续化制备表面银化聚酰亚胺薄膜的方法 | |
| CN114621728A (zh) | 一种耐高温宽频吸波结构复合材料及其制备方法 | |
| CN115473051B (zh) | 一种电磁吸波结构 | |
| CN204793219U (zh) | 吸波超材料 | |
| CN212571374U (zh) | 一种雷达织物吸波结构 | |
| CN113696567A (zh) | 耐高温宽频吸波/承载复合材料及其制备方法 | |
| CN113394568A (zh) | 新型超高吸收率超材料吸波体、吸波单元及吸波结构 | |
| CN113394570A (zh) | 一种低剖面低入射角度敏感性的吸波表面及其制作工艺 | |
| CN217420227U (zh) | 一种基于超表面技术的水泥复合板 | |
| CN114619724A (zh) | 一种耐高温结构吸波复合材料及其制备方法 | |
| CN113216508A (zh) | 一种基于超表面技术的水泥复合板 | |
| CN116373404B (zh) | 一种具有低雷达散射截面特性的柱面碳纤维复合材料结构 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220614 |
|
| WD01 | Invention patent application deemed withdrawn after publication |