CN105755553B - YAG/Al2O3The preparation method of composite nano fiber - Google Patents
YAG/Al2O3The preparation method of composite nano fiber Download PDFInfo
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- CN105755553B CN105755553B CN201610127066.6A CN201610127066A CN105755553B CN 105755553 B CN105755553 B CN 105755553B CN 201610127066 A CN201610127066 A CN 201610127066A CN 105755553 B CN105755553 B CN 105755553B
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- polyvinyl alcohol
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- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 239000002121 nanofiber Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 36
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000002243 precursor Substances 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 238000010041 electrostatic spinning Methods 0.000 claims abstract description 15
- 238000009987 spinning Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 5
- 239000001257 hydrogen Substances 0.000 claims abstract description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 41
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 41
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 41
- 239000000243 solution Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000012153 distilled water Substances 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- 239000004202 carbamide Substances 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000003760 magnetic stirring Methods 0.000 claims description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- 239000004034 viscosity adjusting agent Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 229940068984 polyvinyl alcohol Drugs 0.000 claims 8
- 239000004698 Polyethylene Substances 0.000 claims 1
- 235000019441 ethanol Nutrition 0.000 claims 1
- 239000012046 mixed solvent Substances 0.000 claims 1
- -1 polyethylene Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 4
- 238000001354 calcination Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000165940 Houjia Species 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000002223 garnet Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001523 electrospinning Methods 0.000 description 1
- 150000002085 enols Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
Abstract
YAG/Al2O3The preparation method of composite nano fiber, its step is：（1）The preparation of precursor sol；（2）YAG/Al2O3The preparation of composite precursor fiber：Composite fibre is prepared by method of electrostatic spinning, the distance between injection apparatus tip and reception device receive distance respectively 14 ~ 20cm；The DC voltage of application is 15 ~ 30kV；Relative humidity is about 50% ~ 60%；Indoor temperature is more than 20 ~ 35 DEG C, and the delivery rate of spinning is 2ml/h；（3）YAG/Al2O3The preparation of composite nano fiber：First 3h is dried at 80 DEG C of constant temperature oven, it is put into again in chamber type electric resistance furnace at 600 DEG C and is calcined 4h to remove carbon hydrogen element, then 2h is calcined at 900 DEG C, 1000 DEG C, 1100 DEG C and 1200 DEG C with 2 DEG C/min heating rate respectively being rapidly heated in tube furnace, final sample naturally cools to room temperature with furnace temperature.
Description
Technical field
The present invention relates to the preparing technical field of composite nano fiber, and in particular to a kind of YAG/Al2O3Composite nano fiber
Method of electrostatic spinning technology of preparing.
Background technology
Yttrium-aluminium-garnet/aluminum oxide（YAG/Al2O3）Composite nano fiber has the advantages that good mechanical property, can
Overcome these defects of composite powder, and YAG, Al2O3With good chemical compatibility, similar thermal coefficient of expansion, Gao Rong
Point, inoxidizability are strong, so YAG/Al2O3The high temperature resistant activeness and quietness material that composite nano fiber is desirable, got a good chance of
Material.People are to YAG/Al in recent years2O3The research of composite is concentrated mainly on powder, there was only minority for the composite fibre
Researcher is studied, for example, D.Y.PARK et al. is prepared for Y using directional solidification technique3Al5O12/Al2O3Composite fibre
（Journal of Materials Science, 2001,36: 5593-5601）；Kiyoshi Okada and M. Shojaie-
Bahaabad, et al prepare YAG/Al using sol-gal process2O3Long fibre（Journal of the European
Ceramic Society, 2000, 20: 561-567; Ceramics International, 2008, 34: 1893-
1902）, but these technical costs are high, cumbersome, efficiency is low, it is difficult to realize industrialization.Therefore using it is a kind of it is simple, general,
Efficiency high, cost be low, easy to operate, easily industrialized method prepares YAG/Al2O3Composite nano fiber is very important.Mesh
Before have no method of electrostatic spinning prepare YAG/Al2O3The report of composite nano fiber.
The U.S. Patent Publication of Patent No. 1,975,504 one technical scheme about electrospinning process, the technology
It is to prepare a kind of continuous, effective ways of the big micro nanometer fiber of draw ratio.Method of electrostatic spinning is earliest mainly for the preparation of high score
Sub- nanofiber.Nearly 10 years, method of electrostatic spinning received much concern in the preparation field of inorfil.Nothing is prepared using method of electrostatic spinning
Species limitation of the machine fiber to inorganic material is more, and reason is that the preparation of precursor solution is difficult to the spray for meeting electrostatic spinning process
Silk is required.Dong Xiangting, waits the rare earth garnet type compound nano fiber that single constituent element is prepared for using method of electrostatic spinning（China
Patent of invention, application number：200810050567.1）.But on YAG/Al2O3It is prepared by the method for electrostatic spinning of composite nano fiber
Have no report.
Above-described preparation YAG/Al2O3The shortcoming of the method for composite nano fiber is that cost is high, complex operation, it is difficult to
Realize industrialization.
The content of the invention
The present invention is YAG/Al2O3The preparation method of composite nano fiber, using method of electrostatic spinning, is used with urea-modified
Polyvinyl alcohol colloidal sol as the viscosity modifier of solution, its step is：
（1）The preparation of precursor sol：
1. weigh polyvinyl alcohol and distilled water is poured into tap web bottle, take out and use after being heated 10 minutes in 90 DEG C of water-baths
Magnetic stirrer 10 minutes, until polyvinyl alcohol is fully dissolved as vitreosol, wherein：The mass content of polyvinyl alcohol
It is 9%~12%；The volume fraction of distilled water is 50%~75%；
2. urea is added into the polyvinyl alcohol colloidal sol dissolved, is changed by the crosslinked action of urea and polyvinyl alcohol
Property polyvinyl alcohol viscosity and water solubility, and then change solution concentration, precursor solution is more easy to spinning；The addition of urea is poly-
The 0.5% of vinyl alcohol total amount, its time being crosslinked is 1.5h, and temperature is 40~50 DEG C；
3. Y is pressed3+：Al3+Mol ratio 3:5, weigh Y2O3Pour into beaker, add concentrated nitric acid and fully dissolve, Ran Houjia
Heat removes unnecessary nitric acid, then weighs Al (NO3)3·9H2O is added thereto；A nanometer Al is weighed again2O3Powder and absolute ethyl alcohol are added
Mixed solution is formed in above-mentioned beaker, the solution is placed on into stirring 2h on magnetic stirring apparatus is well mixed solution；
4. above-mentioned solution is added in the polyvinyl alcohol colloidal sol prepared, forms mixed sols, ammoniacal liquor regulation pH value, which is added dropwise, is
2.6~3.0；In magnetic stirrer 2h colloidal sol is uniformly mixed, that is, obtained precursor sol；
（2）YAG/Al2O3The preparation of composite precursor fiber：
Composite fibre is prepared by method of electrostatic spinning, spinning technology parameter has：Between injection apparatus tip and reception device
Distance be receive distance be 14~20cm；The DC voltage of application is 15~30kv；Relative humidity is 50%~60%；It is indoor
Temperature is 20~35 DEG C, and the delivery rate of spinning is 2ml/h；
（3）YAG/Al2O3The preparation of composite nano fiber：
Obtained composite precursor fiber is heat-treated：3h is dried at 80 DEG C of constant temperature oven first, then is put into box
4h is calcined in resistance furnace at 600 DEG C to remove carbon hydrogen element, is then being rapidly heated in tube furnace with 2 DEG C/min heating rate
2h is calcined at 900 DEG C, 1000 DEG C, 1100 DEG C and 1200 DEG C respectively, final sample naturally cools to room temperature with furnace temperature；Most
The product obtained eventually as YAG/Al2O3Composite nano fiber.
Usefulness of the present invention is：The viscosity using urea-modified polyvinyl alcohol as precursor solution is used to adjust
Agent, modified polyvinyl alcohol has more preferable viscosity and water solubility, it is ensured that subsequently can more rapidly effectively form compound receive
Rice fiber, overcomes existing preparation YAG/Al2O3Composite nano fiber method cost is high, and hardly possible operation, efficiency is low, diameter greatly with
And be difficult to realize the problems such as industrializing.
Brief description of the drawings
Fig. 1 is YAG/ Al2O3Presoma composite nano fiber is from room temperature to 1000 DEG C of TG-DSC collection of illustrative plates, and Fig. 2 is YAG/
Al2O3XRD spectrum of the composite nano fiber under different calcining heats, Fig. 3 is YAG/Al2O3Composite nano fiber forerunner
The FT-IR collection of illustrative plates of body, Fig. 4 is YAG/Al2O3Composite nano fiber calcining after FT-IR collection of illustrative plates, Fig. 5 is YAG/Al2O3Answer
The SEM figures of nanofiber presoma are closed, Fig. 6 is YAG/Al2O3Composite nano fiber calcine at high temperature after SEM figure.
Embodiment
The present invention is YAG/Al2O3The preparation method of composite nano fiber, using method of electrostatic spinning, is used with urea-modified
Polyvinyl alcohol colloidal sol as the viscosity modifier of solution, its step is：
（1）The preparation of precursor sol：
1. weigh polyvinyl alcohol and distilled water is poured into tap web bottle, take out and use after being heated 10 minutes in 90 DEG C of water-baths
Magnetic stirrer 10 minutes, until polyvinyl alcohol is fully dissolved as vitreosol, wherein：The mass content of polyvinyl alcohol
It is 9%~12%；The volume fraction of distilled water is 50%~75%；
2. urea is added into the polyvinyl alcohol colloidal sol dissolved, is changed by the crosslinked action of urea and polyvinyl alcohol
Property polyvinyl alcohol viscosity and water solubility, and then change solution concentration, precursor solution is more easy to spinning；The amount that enters of urea is poly- second
The 0.5% of enol total amount, its time being crosslinked is 1.5h, and temperature is 40~50 DEG C；
3. Y is pressed3+：Al3+Mol ratio 3:5, weigh Y2O3Pour into beaker, add concentrated nitric acid and fully dissolve, Ran Houjia
Heat removes unnecessary nitric acid, then weighs Al (NO3)3·9H2O is added thereto；A nanometer Al is weighed again2O3Powder and absolute ethyl alcohol are added
Mixed solution is formed in above-mentioned beaker, the solution is placed on into stirring 2h on magnetic stirring apparatus is well mixed solution；
4. above-mentioned solution is added in the polyvinyl alcohol colloidal sol prepared, forms mixed sols, ammoniacal liquor regulation pH value, which is added dropwise, is
2.6~3.0；In magnetic stirrer 2h colloidal sol is uniformly mixed, that is, obtained precursor sol；
（2）YAG/Al2O3The preparation of composite precursor fiber：
Composite fibre is prepared by method of electrostatic spinning, spinning technology parameter has：Between injection apparatus tip and reception device
Distance be receive distance be 14~20cm；The DC voltage of application is 15~30kV；Relative humidity is 50%~60%；It is indoor
Temperature is 20~35 DEG C, and the delivery rate of spinning is 2ml/h；
（3）YAG/Al2O3The preparation of composite nano fiber：
Obtained composite precursor fiber is heat-treated：3h is dried at 80 DEG C of constant temperature oven first, then is put into box
4h is calcined in resistance furnace at 600 DEG C to remove carbon hydrogen element, is then being rapidly heated in tube furnace with 2 DEG C/min heating rate
2h is calcined at 900 DEG C, 1000 DEG C, 1100 DEG C and 1200 DEG C respectively, final sample naturally cools to room temperature with furnace temperature；Most
The product obtained eventually as YAG/Al2O3Composite nano fiber.
Above-described preparation method, the concrete composition of each variable, which is matched, is：YAG：Al2O3Mol ratio be 1：3；It is mixed
The volume ratio of distilled water and absolute ethyl alcohol is 1 in bonding solvent：5；The volumn concentration of absolute ethyl alcohol is 13%~19%.
Above-described preparation method, spin solvent is used as from the mixed liquor of absolute ethyl alcohol and distilled water.
Above-described preparation method, makees the viscosity modifier of colloidal sol using urea-modified polyvinyl alcohol.
It is YAG/ Al shown in Fig. 12O3Presoma composite nano fiber is from room temperature to 1000 DEG C of TG-DSC collection of illustrative plates, Fig. 2 institutes
Show it is YAG/Al2O3XRD spectrum of the composite nano fiber under different calcining heats, be YAG/Al shown in Fig. 32O3It is compound
The FT-IR collection of illustrative plates of nanofiber presoma, is YAG/Al shown in Fig. 42O3Composite nano fiber calcining after FT-IR collection of illustrative plates.
The present invention technological parameter be：Polyvinyl alcohol concentration is 10%；It is 18cm to receive distance；Spinning voltage is 25kv；Phase
It is 50%~60% to humidity；Indoor temperature is 20~35 DEG C；Spinning delivery rate is 2ml/h.It is YAG/Al shown in Fig. 52O3's
The SEM figures of composite nano fiber presoma, are YAG/Al shown in Fig. 62O3Composite nano fiber calcine at high temperature after SEM
Figure.
Embodiment 1：Weigh polyvinyl alcohol（PVA）Poured into distilled water in tap web bottle so that the concentration of polyvinyl alcohol is 9%.
Heating stirring in 90 DEG C of water-baths and in magnetic stirring apparatus, forms transparent polyvinyl alcohol colloidal sol.Weigh urea and be added to and match somebody with somebody
In good polyvinyl alcohol colloidal sol, it is set to be more easy to carry out spinning by crosslinking reaction with polyvinyl alcohol come modified polyvinylalcohol.
By Y3+：Al3+Mol ratio 3:5, weigh Y2O3Pour into beaker, add concentrated nitric acid and fully dissolve, then heating removes unnecessary
Nitric acid, then weigh Al (NO3)3·9H2O is added thereto, then weighs a nanometer Al2O3Powder and absolute ethyl alcohol are added in above-mentioned beaker
Mixed solution is formed, the solution is placed on into stirring 2h on magnetic stirring apparatus is well mixed solution.Above-mentioned solution is added to poly-
In ethene alcosol, mixed sols is formed, ammoniacal liquor regulation pH value is added dropwise, stirring 2h causes colloidal sol uniformly to mix, that is, obtains forerunner
Body colloidal sol.Precursor sol is fitted into injection apparatus, the distance between injection apparatus tip and reception device i.e. solidification distance
For 18cm, the DC voltage of application is 25kv, and relative humidity is 50%~60%, and indoor temperature is 20~35 DEG C, with 2ml/h's
Delivery rate carries out spinning, untill precursor sol has sprayed, and presoma finally can be just collected on collection device and is answered
Condensating fiber.The presoma composite fibre being collected into is put into alumina crucible, 3h is dried at 80 DEG C of constant temperature oven, then be put into case
4h is calcined in formula resistance furnace at 600 DEG C to remove carbon hydrogen element, is then being rapidly heated in tube furnace with 2 DEG C/min heating speed
Rate is calcined 2h at 900 DEG C, 1000 DEG C, 1100 DEG C and 1200 DEG C respectively, is finally cooled to room temperature with furnace temperature.Finally give
Product be YAG/Al2O3Composite nano fiber.
Embodiment 2：Weigh polyvinyl alcohol and distilled water is poured into tap web bottle so that the concentration of polyvinyl alcohol is 10%.It is walked
Suddenly in the same manner as in Example 1.
Embodiment 3：Weigh polyvinyl alcohol and distilled water is poured into tap web bottle so that the concentration of polyvinyl alcohol is 11%.It is walked
Suddenly in the same manner as in Example 1.
Embodiment 4：Weigh polyvinyl alcohol and distilled water is poured into tap web bottle so that the concentration of polyvinyl alcohol is 12%.It is walked
Suddenly in the same manner as in Example 1.
Claims (2)
1.YAG/Al2O3The preparation method of composite nano fiber, it is characterised in that：Using method of electrostatic spinning, use with urea-modified
Polyvinyl alcohol colloidal sol as the viscosity modifier of solution, its step is：
（1）The preparation of precursor sol：
1. weigh polyvinyl alcohol and distilled water is poured into tap web bottle, taking-up magnetic force after being heated 10 minutes in 90 DEG C of water-baths
Agitator is stirred 10 minutes, until polyvinyl alcohol is fully dissolved as vitreosol, wherein：The mass content of polyvinyl alcohol is 9%
~12%；The volume fraction of distilled water is 50%~75%；
2. urea is added into the polyvinyl alcohol colloidal sol dissolved, is modified by the crosslinked action of urea and polyvinyl alcohol poly-
Vinyl alcohol viscosity and water solubility, and then change solution concentration, precursor solution is more easy to spinning；The addition of urea is polyethylene
The 0.5% of alcohol total amount, its time being crosslinked is 1.5h, and temperature is 40~50 DEG C；
3. Y is pressed3+：Al3+Mol ratio 3:5, weigh Y2O3Pour into beaker, add concentrated nitric acid and fully dissolve, then heating is removed
Unnecessary nitric acid is removed, then weighs Al (NO3)3·9H2O is added thereto；A nanometer Al is weighed again2O3Powder and absolute ethyl alcohol add above-mentioned
Mixed solution is formed in beaker, the solution is placed on into stirring 2h on magnetic stirring apparatus is well mixed solution；
4. above-mentioned solution is added in the polyvinyl alcohol colloidal sol prepared, forms mixed sols, it is 2.6 that ammoniacal liquor regulation pH value, which is added dropwise,
~3.0；In magnetic stirrer 2h colloidal sol is uniformly mixed, that is, obtained precursor sol；
（2）YAG/Al2O3The preparation of composite precursor fiber：
Composite fibre is prepared by method of electrostatic spinning, spinning technology parameter has：Injection apparatus tip reception device between away from
It is 14~20cm with a distance from reception from being；The DC voltage of application is 15~30kv；Relative humidity is 50%~60%；Indoor temperature
For 20~35 DEG C, the delivery rate of spinning is 2ml/h；
（3）YAG/Al2O3The preparation of composite nano fiber：
Obtained composite precursor fiber is heat-treated：3h is dried at 80 DEG C of constant temperature oven first, then is put into box resistance
4h is calcined in stove at 600 DEG C to remove carbon hydrogen element, is then being rapidly heated in tube furnace with 2 DEG C/min heating rate difference
2h is calcined at 900 DEG C, 1000 DEG C, 1100 DEG C and 1200 DEG C, final sample naturally cools to room temperature with furnace temperature；Final
The product arrived as YAG/Al2O3Composite nano fiber.
2. YAG/Al according to claim 12O3The preparation method of composite nano fiber, it is characterised in that each variable
Concrete composition is matched：YAG：Al2O3Mol ratio be 1：3；The volume ratio of in the mixed solvent distilled water and absolute ethyl alcohol is 1：5；
The volumn concentration of absolute ethyl alcohol is 13%~19%.
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| CN107475814B (en) * | 2017-09-15 | 2020-06-05 | 兰州理工大学 | YAG/Al with core-shell structure2O3/ZrO2Preparation method of single crystal nano fiber |
| CN115233337B (en) * | 2022-08-11 | 2023-10-03 | 浙江大学台州研究院 | Preparation method of nano composite fiber powder for recycled concrete |
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| US5378665A (en) * | 1992-10-30 | 1995-01-03 | General Atomics | Crystalline yttrium aluminate and process for making |
| JP2945925B2 (en) * | 1996-12-28 | 1999-09-06 | 工業技術院長 | Manufacturing method of composite fiber |
| CN101235557B (en) * | 2008-03-12 | 2010-06-02 | 长春理工大学 | Method for preparing rare earth garnet type compound nano fiber |
| CN102493022A (en) * | 2011-11-24 | 2012-06-13 | 长春理工大学 | Method for preparing europium-doped yttrium aluminum garnet nanobelt |
| CN105002601A (en) * | 2015-07-22 | 2015-10-28 | 南京理工宇龙新材料科技有限公司 | Preparation method of polycrystalline Al2O3-Y3Al5O12 complex-phase fibers or pure YAG fibers |
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