CN108467253A - A kind of silicon carbide nanometer line precast body enhancing alumina aerogels material and preparation method thereof - Google Patents
A kind of silicon carbide nanometer line precast body enhancing alumina aerogels material and preparation method thereof Download PDFInfo
- Publication number
- CN108467253A CN108467253A CN201810086128.2A CN201810086128A CN108467253A CN 108467253 A CN108467253 A CN 108467253A CN 201810086128 A CN201810086128 A CN 201810086128A CN 108467253 A CN108467253 A CN 108467253A
- Authority
- CN
- China
- Prior art keywords
- silicon carbide
- nanometer line
- precast body
- carbide nanometer
- line precast
- 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
Classifications
-
- 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
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/30—Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds
- C01F7/306—Thermal decomposition of hydrated chlorides, e.g. of aluminium trichloride hexahydrate
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
- C01P2004/16—Nanowires or nanorods, i.e. solid nanofibres with two nearly equal dimensions between 1-100 nanometer
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Composite Materials (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A kind of silicon carbide nanometer line precast body enhancing aluminium aerogel material is it is characterized in that the silicon carbide nanometer line precast body enhancing aluminium aerogel material includes silicon carbide nanometer line precast body, alumina aerogels, silicon carbide nanometer line passes through growth in situ, mutually winding crosslinking composition silicon carbide nanometer line precast body, alumina aerogels are uniformly filled among the hole of silicon carbide nanometer line precast body, and density is 0.5 1g/cm3, the nano wire average diameter in the silicon carbide nanometer line precast body is 30 100nm, and average length is 2 10mm.Silicon carbide nanometer line precast body is prepared using atmospheric pressure cvd method, alumina aerogels are prepared using atmosphere pressure desiccation.The present invention has the advantage that：Silicon carbide nanometer line precast body forms good spacial framework, binding force is strong, is evenly distributed, and alumina aerogels are filled in nanoscopic network pore space structure, is combined in nano-scale with nano wire, good moldability by atmospheric pressure cvd method one-pass molding between nano wire.Preparation process is simple, it is easy to accomplish.
Description
Technical field
The present invention relates to a kind of high temperature resistant aeroge material and preparation method thereof, more particularly to a kind of high-temperature resistant silicon carbide is received
Rice noodles precast body enhances alumina aerogels heat-insulating material and preparation method thereof.
Background technology
Aeroge is that low-density of the inside full of gaseous material that is formed as skeleton using nano-particle or high-polymer molecular is more
Porous material material.Aeroge is most light in the world condensed state material, there is the title of solid-state cigarette.Aeroge not only has nanometer material
The fundamental property of material also has high porosity, low-density, low refraction coefficient, low electrical conductivity, low heat transfer coefficient, propagates in a low voice
Many good characteristics such as speed, in extremely-low density high temperature resistant heat insulation material, sensor sensor, high-effect electrode material, spy
Kind of dielectric material, excellent adsorbent and filter, novel high-energy particle detector, solar absorption converter, efficiently
Catalyst and catalyst carrier, special glass precursor etc. have very tempting application prospect.
The patent that number of patent application is 201310276044.2 uses organic aluminium salt for silicon source, by collosol and gel, aging,
Liquid displacement, overcritical modification is dry, and the complex steps such as gas phase modification are prepared for the lump alumina aerogel of high rigidity, but
It is that this preparation method is excessively cumbersome, and uses supercritical drying, it is of high cost to equipment requirement height, it is dangerous big, it is unsuitable for giving birth to
Production.
Number of patent application disperses in the solution, later at a certain temperature will for 201610856015.7 with graphene oxide
Aluminum salt solution is mixed into solution, and aluminium ion relies on Graphene gel, prepares alumina aerogels, the method by roasting later
The alumina aerogels light weight of preparation, but mechanical property is poor, does not solve the problems, such as to use under certain loading condition.
The patent that number of patent application is 201010515083.X uses glass fiber reinforcement aerosil composite wood
Material, uses ethyl orthosilicate for silicon source material, glass fibre is precast body, and methyl trimethoxy oxygroup or methyltriethoxysilane are
Silicon source co-precursor, the wherein mass fraction of ratio fiber are 1%-15%, are had by aeroge prepared by this method good
Mouldability, it is not easy to crack the advantages that, but the aeroge cannot use under 500 DEG C of temperatures above for a long time, cannot be 650
Used under DEG C temperatures above, and glass fiber diameter in the micron-scale not more than, fiber is coarse, does not solve fiber accounting weight
Greatly, with the limitation of the good combination of the aeroge of Nano grade.
Invention content
The purpose of the present invention is to provide a kind of silicon carbide nanometer line precast body enhancing alumina aerogels material and its systems
Preparation Method.
To achieve the above object, the present invention prepares silicon carbide nanometer line precast body, silicon carbide nanometer line by atmospheric pressure cvd method
By growth in situ, self-crosslinking winds one-pass molding, and alumina aerogels are prefabricated in silicon carbide nanometer line by sol-gal process
Gel in body opening gap, later by aging, constant pressure and dry prepares the alumina aerogels of silicon carbide nanometer line precast body enhancing.
A kind of preparation method of silicon carbide nanometer line precast body enhancing alumina aerogels material proposed by the present invention, specifically
Steps are as follows：
(1) preparation of silicon carbide nanometer line precast body：
1) melamine foam is pyrolyzed to obtain the growing substrate carbon foam of silicon carbide nanometer line, then impregnates carbon foam
In the alcoholic solution of the ferrocene of a concentration of 0.01-0.1mol/L, takes out be dried for standby in 90-120 DEG C of baking oven immediately.
2) 1-3g Polycarbosilanes are ground to powder to be positioned in alumina crucible, 1) middle gained carbon foam is positioned over oxygen
Change aluminium crucible top, alumina crucible is positioned in tube furnace under protection of argon gas, is warming up to the rate of 20 DEG C/min
1300-1400 DEG C, 5-7h is kept the temperature, cools to 450-500 DEG C with the furnace, be passed through 20-30sccm oxygen immediately, aoxidized 1-1.5h, go
Except carbon foam matrix；Furnace cooling removal can be obtained fine and close silicon carbide nanometer line precast body.
(2) solgel reaction：
By AlCL3·6H2O is with molar ratio 1: (9-11) is dissolved in alcoholic solution, with AlCL3·6H2O molar ratios
Be added formamide at 0.6: 1, stirs evenly；Be added dropwise propylene oxide solvent in whipping process later, additional proportion be with
AlCL3·6H2The molar ratio of O is (4-6): 1, it is added dropwise in 1min；Later rapidly by solution with pre- with silicon carbide nanometer line
The ratio of the volume ratio 1: 1 of body processed mixes, and stands and waits for gel, and it is wet solidifying to obtain silicon carbide nanometer line precast body enhancing aluminium oxide
Glue.
(3) aging：
Silicon carbide nanometer line precast body enhancing aluminium oxide wet gel in (2) is put into the 70-80%'s containing ethyl orthosilicate
Silicon carbide nanometer line precast body after aging is enhanced aluminium oxide wet gel by 50-60 DEG C of aging 20-24h in ethanol solution later
It is put into ethanol solution and impregnates removal ethyl orthosilicate residual.
(4) dry：
The good silicon carbide nanometer line enhancing aluminium oxide wet gel of aging in (3) is put into Muffle furnace, it is dry in 50-60 DEG C
For 24 hours, it is warming up to 200 DEG C of calcining 1h later, you can obtain silicon carbide nanometer line precast body enhancing alumina aerogels.
Description of the drawings
Fig. 1, which is silicon carbide nanometer line precast body, enhances alumina aerogels material structure schematic diagram, and 10 be nanometer silicon carbide
Line precast body, 20 be alumina aerogels matrix；
Fig. 2 is the silicon carbide nanometer line precast body optics picture used in embodiment 1；
Fig. 3 is silicon carbide nanometer line SEM pictures in the silicon carbide nanometer line used in embodiment 1.
Specific implementation mode
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
And without limiting the scope of the invention, after having read the present invention, various of equal value shapes of the those skilled in the art to the present invention
It is as defined in the appended claims that the modification of formula falls within the application.
Embodiment 1：
(1) melamine foam is pyrolyzed to obtain the growing substrate carbon foam of silicon carbide nanometer line, then soaks carbon foam
Stain is taken out be dried for standby in 90 DEG C of baking ovens immediately in the alcoholic solution of the ferrocene of a concentration of 0.01mol/L.
(2) 1g Polycarbosilanes are ground to powder to be positioned in alumina crucible, gained carbon foam in (1) is positioned over oxygen
Change aluminium crucible top, alumina crucible is positioned in tube furnace under protection of argon gas, is warming up to the rate of 20 DEG C/min
1300 DEG C, 5-7h is kept the temperature, cools to 450 DEG C with the furnace, be passed through 20sccm oxygen immediately, aoxidize 1h, removes carbon foam matrix；With stove
Cooling removal can be obtained fine and close silicon carbide nanometer line precast body.
(3) by AlCL3·6H2O is dissolved in molar ratio 1: 9 in alcoholic solution, with AlCL3·6H2O molar ratios 0.6:
1 is added formamide, stirs evenly；It is added dropwise propylene oxide solvent in whipping process later, additional proportion is and AlCL3·
6H2The molar ratio of O is 4: 1, is added dropwise in 1min；Later rapidly by solution with the volume with silicon carbide nanometer line precast body
Ratio mixing than 2: 1, stands and waits for gel, obtains silicon carbide nanometer line precast body enhancing aluminium oxide wet gel.
(4) (3) silicon carbide nanometer line precast body enhancing aluminium oxide wet gel is put into the ethyl alcohol containing ethyl orthosilicate 70%
It is molten to be put into ethyl alcohol by 50 DEG C of aging 20h in solution later for silicon carbide nanometer line precast body enhancing aluminium oxide wet gel after aging
Removal ethyl orthosilicate residual for 24 hours is impregnated in liquid.
(5) the good silicon carbide nanometer line precast body enhancing aluminium oxide wet gel of aging in (4) is put into Muffle furnace, 50 DEG C
Middle drying for 24 hours, is warming up to 200 DEG C of calcining 1h later, you can obtains silicon carbide nanometer line precast body enhancing alumina aerogels.
Embodiment 2
(1) melamine foam is pyrolyzed to obtain the growing substrate carbon foam of silicon carbide nanometer line, then soaks carbon foam
Stain is taken out be dried for standby in 100 DEG C of baking ovens immediately in the alcoholic solution of the ferrocene of a concentration of 0.05mol/L.
(2) 2g Polycarbosilanes are ground to powder to be positioned in alumina crucible, gained carbon foam in (1) is positioned over oxygen
Change aluminium crucible top, alumina crucible is positioned in tube furnace under protection of argon gas, is warming up to the rate of 20 DEG C/min
1350 DEG C, 6h is kept the temperature, cools to 500 DEG C with the furnace, be passed through 25sccm oxygen immediately, aoxidize 1.2h, removes carbon foam matrix；With stove
Cooling removal can be obtained fine and close silicon carbide nanometer line precast body.
(3) by AlCL3·6H2O is dissolved in molar ratio 1: 10 in alcoholic solution, with AlCL3·6H2O molar ratios 0.6
: 1 is added formamide, stirs evenly；Be added dropwise propylene oxide solvent in whipping process later, additional proportion be with
AlCL3·6H2The molar ratio of O is 5: 1, is added dropwise in 1min；Later rapidly by solution with silicon carbide nanometer line precast body
Volume ratio 1: 1 ratio mixing, stand wait for gel, obtain silicon carbide nanometer line precast body enhancing aluminium oxide wet gel.
(4) (3) silicon carbide nanometer line precast body enhancing aluminium oxide wet gel is put into 70-'s containing ethyl orthosilicate 80%
The silicon carbide nanometer line enhancing aluminium oxide wet gel after aging for 24 hours, it is molten to be put into ethyl alcohol by 50-60 DEG C of aging later in ethanol solution
Removal ethyl orthosilicate residual is impregnated in liquid.
(5) the good silicon carbide nanometer line precast body enhancing aluminium oxide wet gel of aging in (4) is put into Muffle furnace, 60 DEG C
Middle drying for 24 hours, is warming up to 200 DEG C of calcining 1h later, you can obtains silicon carbide nanometer line precast body enhancing alumina aerogels.
Embodiment 3：
(1) melamine foam is pyrolyzed to obtain the growing substrate carbon foam of silicon carbide nanometer line, then soaks carbon foam
Stain is taken out be dried for standby in 120 DEG C of baking ovens immediately in the alcoholic solution of the ferrocene of a concentration of 0.1mol/L.
(2) 3g Polycarbosilanes are ground to powder to be positioned in alumina crucible, gained carbon foam in (1) is positioned over oxygen
Change aluminium crucible top, alumina crucible is positioned in tube furnace under protection of argon gas, is warming up to the rate of 20 DEG C/min
1400 DEG C, 7h is kept the temperature, cools to 500 DEG C with the furnace, be passed through 30sccm oxygen immediately, aoxidize 1.5h, removes carbon foam matrix；With stove
Cooling removal can be obtained fine and close silicon carbide nanometer line precast body.
(3) by AlCL3·6H2O is dissolved in molar ratio 1: 11 in alcoholic solution, with AlCL3·6H2O molar ratios 0.6
: 1 is added formamide, stirs evenly；Be added dropwise propylene oxide solvent in whipping process later, additional proportion be with
AlCL3·6H2The molar ratio of O is 6: 1, is added dropwise in 1min；Later rapidly by solution with silicon carbide nanometer line precast body
Volume ratio 1: 1 ratio mixing, stand wait for gel, obtain silicon carbide nanometer line precast body enhancing aluminium oxide wet gel.
(4) (3) silicon carbide nanometer line precast body enhancing aluminium oxide wet gel is put into 70-'s containing ethyl orthosilicate 80%
The silicon carbide nanometer line precast body enhancing aluminium oxide wet gel after aging for 24 hours, is put into second by 60 DEG C of agings later in ethanol solution
Alcohol solution for soaking removes ethyl orthosilicate residual.
(5) the good silicon carbide nanometer line precast body enhancing aluminium oxide wet gel of aging in (4) is put into Muffle furnace, 60 DEG C
Middle drying for 24 hours, is warming up to 200 DEG C of calcining 1h later, you can obtains silicon carbide nanometer line precast body enhancing alumina aerogels.
Claims (3)
1. a kind of silicon carbide nanometer line precast body enhances alumina aerogels material, which is characterized in that the nanometer silicon carbide
It includes silicon carbide nanometer line precast body, alumina aerogels matrix, aluminium oxide gas that line precast body, which enhances alumina aerogels material,
It is gel-filled among the hole of silicon carbide nanometer line precast body, the volume of silicon carbide nanometer line precast body and alumina aerogels
Than being 1: 1, the density that silicon carbide nanometer line enhances alumina aerogels composite material is 0.5-1g/cm3, alumina aerogels base
Body occupies the 80-90% of silicon carbide nanometer line precast body enhancing alumina aerogels composite material quality..
2. high-temperature resistant silicon carbide nano wire precast body according to claim 1, enhances alumina aerogels material, special
Sign is in the silicon carbide nanometer line precast body that silicon carbide nanometer line average diameter is 20-80nm, average length 2-
10mm, density 0.02-0.05g/cm3, for silicon carbide nanometer line by atmospheric pressure cvd growth in situ, self-crosslinking winding composition is fine and close
Silicon carbide nanometer line precast body.
3. a kind of high-temperature resistant silicon carbide nano wire precast body enhances alumina aerogels material preparation method, feature includes following
Step：
(1) melamine foam is pyrolyzed to obtain the growing substrate carbon foam of silicon carbide nanometer line, is then impregnated in carbon foam
In the alcoholic solution of the ferrocene of a concentration of 0.01-0.1mol/L, takes out be dried for standby in 90-120 DEG C of baking oven immediately.
(2) 1-3g Polycarbosilanes are ground to powder to be positioned in alumina crucible, gained carbon foam in (1) is positioned over oxidation
Aluminium crucible top, alumina crucible is positioned in tube furnace under protection of argon gas, and 1300- is warming up to the rate of 20 DEG C/min
1400 DEG C, 5-7h is kept the temperature, cools to 450-500 DEG C with the furnace, be passed through 20-30sccm oxygen immediately, aoxidizes 1-1.5h, removal carbon bubble
Cotton matrix；Furnace cooling removal can be obtained fine and close silicon carbide nanometer line precast body.
(3) by AlCL36H2O with molar ratio 1: (9-11) is dissolved in alcoholic solution, with AlCL36H2O molar ratios 0.6
: 1 is added formamide, stirs evenly；Be added dropwise propylene oxide solvent in whipping process later, additional proportion be with
The molar ratio of AlCL36H2O is (4-6): 1, it is added dropwise in 1min；Later rapidly by solution with silicon carbide nanometer line
The ratio of the volume ratio 1: 1 of precast body mixes, and stands and waits for gel, and it is wet solidifying to obtain silicon carbide nanometer line precast body enhancing aluminium oxide
Glue.
(4) ethyl alcohol that (3) silicon carbide nanometer line precast body enhancing aluminium oxide wet gel is put into the 70-80% containing ethyl orthosilicate is molten
Silicon carbide nanometer line precast body enhancing aluminium oxide wet gel after aging is put into second by 50-60 DEG C of aging 20-24h in liquid later
Alcohol solution for soaking removes ethyl orthosilicate residual.
(5) the good silicon carbide nanometer line precast body enhancing aluminium oxide wet gel of aging in (4) is put into Muffle furnace, 50-60 DEG C
Middle drying for 24 hours, is warming up to 200 DEG C of calcining 1h later, you can obtains silicon carbide nanometer line precast body enhancing alumina aerogels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810086128.2A CN108467253A (en) | 2018-01-20 | 2018-01-20 | A kind of silicon carbide nanometer line precast body enhancing alumina aerogels material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810086128.2A CN108467253A (en) | 2018-01-20 | 2018-01-20 | A kind of silicon carbide nanometer line precast body enhancing alumina aerogels material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108467253A true CN108467253A (en) | 2018-08-31 |
Family
ID=63266199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810086128.2A Pending CN108467253A (en) | 2018-01-20 | 2018-01-20 | A kind of silicon carbide nanometer line precast body enhancing alumina aerogels material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108467253A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628801A (en) * | 2019-02-01 | 2019-04-16 | 北京弘微纳金科技有限公司 | Be carbonized silica aerogel reinforced aluminium based composites and its fusion cast process preparation method |
| CN110606747A (en) * | 2019-10-16 | 2019-12-24 | 西北工业大学 | Preparation method of isotropic ceramic nanowire preform |
| CN111848205A (en) * | 2020-07-13 | 2020-10-30 | 航天特种材料及工艺技术研究所 | Method for preparing high-temperature-resistant aerogel heat-insulating material by normal-pressure drying |
| CN113831105A (en) * | 2021-10-14 | 2021-12-24 | 南京航空航天大学 | High-temperature heat-insulation noise-reduction irradiation-resistant superfine fiber reinforced aerogel composite material and preparation method thereof |
| CN114524638A (en) * | 2022-03-04 | 2022-05-24 | 南京航空航天大学 | Ultralow-thermal-conductivity nanofiber aerogel composite material and preparation method thereof |
| CN114920539A (en) * | 2022-05-23 | 2022-08-19 | 航天特种材料及工艺技术研究所 | High-toughness radiation-resistant aerogel heat-insulating material and preparation method thereof |
| CN115253938A (en) * | 2022-08-10 | 2022-11-01 | 航天特种材料及工艺技术研究所 | High-temperature-resistant anti-radiation elastic silicon carbide nanofiber aerogel material and preparation method thereof |
| CN116789442A (en) * | 2023-05-30 | 2023-09-22 | 西安交通大学 | High-entropy disilicate nano-particle/amorphous silicon dioxide@silicon carbide nano-wire composite aerogel and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030060519A1 (en) * | 2001-09-27 | 2003-03-27 | The Regents Of The University Of California | Method to produce alumina aerogels having porosities greater than 80 percent |
| CN101792299A (en) * | 2010-01-08 | 2010-08-04 | 中国人民解放军国防科学技术大学 | Method for preparing heat-resisting alumina-silox aerogel thermal-protective composite material |
| CN104803685A (en) * | 2015-04-08 | 2015-07-29 | 西北工业大学 | Preparation method of micro-nanofiber/ceramic matrix composite |
| CN106747628A (en) * | 2017-02-22 | 2017-05-31 | 南京航空航天大学 | A kind of high temperature resistant foam strengthens SiO2Aerogel insulating material and preparation method thereof |
-
2018
- 2018-01-20 CN CN201810086128.2A patent/CN108467253A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030060519A1 (en) * | 2001-09-27 | 2003-03-27 | The Regents Of The University Of California | Method to produce alumina aerogels having porosities greater than 80 percent |
| CN101792299A (en) * | 2010-01-08 | 2010-08-04 | 中国人民解放军国防科学技术大学 | Method for preparing heat-resisting alumina-silox aerogel thermal-protective composite material |
| CN104803685A (en) * | 2015-04-08 | 2015-07-29 | 西北工业大学 | Preparation method of micro-nanofiber/ceramic matrix composite |
| CN106747628A (en) * | 2017-02-22 | 2017-05-31 | 南京航空航天大学 | A kind of high temperature resistant foam strengthens SiO2Aerogel insulating material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| GONG-YI LI ETAL: "SiC nanowires grown on activated carbon in a polymer pyrolysis route", 《MATERIALS SCIENCE AND ENGINEERING B》 * |
| YANG WANG ETAL: "A novel ultra-light reticulated SiC foam with hollow skeleton", 《JOURNAL OF THE EUROPEAN CERAMIC SOCIETY》 * |
| 黄宝: "Al2O3气凝胶常压干燥制备方法的研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628801A (en) * | 2019-02-01 | 2019-04-16 | 北京弘微纳金科技有限公司 | Be carbonized silica aerogel reinforced aluminium based composites and its fusion cast process preparation method |
| CN110606747A (en) * | 2019-10-16 | 2019-12-24 | 西北工业大学 | Preparation method of isotropic ceramic nanowire preform |
| CN110606747B (en) * | 2019-10-16 | 2021-09-07 | 西北工业大学 | Preparation method of isotropic ceramic nanowire preform |
| US12006265B2 (en) | 2019-10-16 | 2024-06-11 | Northwestern Polytechnical University | Process for the preparation of a ceramic nanowire preform |
| CN111848205B (en) * | 2020-07-13 | 2022-11-11 | 航天特种材料及工艺技术研究所 | Method for preparing high-temperature-resistant aerogel heat-insulating material by normal-pressure drying |
| CN111848205A (en) * | 2020-07-13 | 2020-10-30 | 航天特种材料及工艺技术研究所 | Method for preparing high-temperature-resistant aerogel heat-insulating material by normal-pressure drying |
| CN113831105A (en) * | 2021-10-14 | 2021-12-24 | 南京航空航天大学 | High-temperature heat-insulation noise-reduction irradiation-resistant superfine fiber reinforced aerogel composite material and preparation method thereof |
| CN114524638A (en) * | 2022-03-04 | 2022-05-24 | 南京航空航天大学 | Ultralow-thermal-conductivity nanofiber aerogel composite material and preparation method thereof |
| CN114920539A (en) * | 2022-05-23 | 2022-08-19 | 航天特种材料及工艺技术研究所 | High-toughness radiation-resistant aerogel heat-insulating material and preparation method thereof |
| CN114920539B (en) * | 2022-05-23 | 2023-03-10 | 航天特种材料及工艺技术研究所 | High-toughness radiation-resistant aerogel heat-insulating material and preparation method thereof |
| CN115253938B (en) * | 2022-08-10 | 2023-04-18 | 航天特种材料及工艺技术研究所 | High-temperature-resistant anti-radiation elastic silicon carbide nanofiber aerogel material and preparation method thereof |
| CN115253938A (en) * | 2022-08-10 | 2022-11-01 | 航天特种材料及工艺技术研究所 | High-temperature-resistant anti-radiation elastic silicon carbide nanofiber aerogel material and preparation method thereof |
| CN116789442A (en) * | 2023-05-30 | 2023-09-22 | 西安交通大学 | High-entropy disilicate nano-particle/amorphous silicon dioxide@silicon carbide nano-wire composite aerogel and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108467253A (en) | A kind of silicon carbide nanometer line precast body enhancing alumina aerogels material and preparation method thereof | |
| CN102010179B (en) | Method for preparing fiber-containing silicon dioxide aerogel composite thermal insulation material | |
| US8647557B2 (en) | Method for producing sheets including fibrous aerogel | |
| CN101698592B (en) | Silicon-aluminium aerogel composite material and manufacturing method thereof | |
| Zhang et al. | Enhanced mechanical and thermal properties of anisotropic fibrous porous mullite–zirconia composites produced using sol-gel impregnation | |
| CN102897764B (en) | Massive silicon carbide aerogel material and preparation method thereof | |
| CN104478475B (en) | High-temperature-resistant high-strength SiC-coated carbon foam composite heat-insulating material and preparation method thereof | |
| CN104086200A (en) | Preparation method of mullite fiber | |
| CN105236411A (en) | High-specific surface area nanometer mesoporous silicon carbide hollow ball and preparation method thereof | |
| Su et al. | Low-cost and fast synthesis of nanoporous silica cryogels for thermal insulation applications | |
| CN102910926A (en) | Preparation method of high-temperature-resistant silicon carbide aerogel heat-insulation composite material | |
| CN105601316B (en) | A kind of carbonization silica aerogel and preparation method thereof | |
| CN107805064A (en) | Preparation method of fiber-reinforced high-temperature-resistant magnesia-alumina spinel aerogel | |
| CN111252789A (en) | High-temperature-resistant alumina nanocrystalline aerogel material and preparation method thereof | |
| CN113663611A (en) | High-temperature-resistant composite nanofiber aerogel material and preparation method thereof | |
| CN109251005A (en) | A kind of preparation method enhancing silica aerogel material | |
| Zhang et al. | Microstructural characterization and properties of ambient-dried SiO2 matrix aerogel doped with opacified TiO2 powder | |
| CN113831581A (en) | High-elasticity anti-radiation nanofiber aerogel material and preparation method thereof | |
| CN108774072B (en) | Rigid heat insulation tile and preparation method thereof | |
| CN107043224A (en) | Foam glass-SiO2Method for producing aerogels | |
| CN108752038A (en) | It is a kind of with can be thermally cured Polycarbosilane preparation foam silicon carbide ceramics | |
| CN109020469A (en) | A kind of SiO2Aeroge/SiC foam composite insulation material and preparation method thereof | |
| CN106854086A (en) | A kind of resistant to elevated temperatures mullite-type aerogel composite and preparation method thereof | |
| KR101695628B1 (en) | Fibrous polymer/aerogel sheet and preparation method therof | |
| CN108727059A (en) | It is a kind of can be thermally cured the preparation method that Polycarbosilane prepares foam silicon carbide ceramics |
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: 20180831 |
|
| WD01 | Invention patent application deemed withdrawn after publication |