CN1323051C - A kind of aluminum borate composite porous ceramic and preparation method thereof - Google Patents
A kind of aluminum borate composite porous ceramic and preparation method thereof Download PDFInfo
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- CN1323051C CN1323051C CNB2005100189565A CN200510018956A CN1323051C CN 1323051 C CN1323051 C CN 1323051C CN B2005100189565 A CNB2005100189565 A CN B2005100189565A CN 200510018956 A CN200510018956 A CN 200510018956A CN 1323051 C CN1323051 C CN 1323051C
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- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000000919 ceramic Substances 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004327 boric acid Substances 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract 8
- 239000011812 mixed powder Substances 0.000 claims abstract 6
- 239000011230 binding agent Substances 0.000 claims abstract 3
- 238000002156 mixing Methods 0.000 claims abstract 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- 229910052593 corundum Inorganic materials 0.000 claims description 8
- 239000010431 corundum Substances 0.000 claims description 8
- 229910052596 spinel Inorganic materials 0.000 claims description 6
- 239000011029 spinel Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 239000001923 methylcellulose Substances 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 229910001570 bauxite Inorganic materials 0.000 claims 2
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims 1
- 238000005266 casting Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 13
- 230000035699 permeability Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 235000010210 aluminium Nutrition 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- GJCCSSFIKKMJIA-UHFFFAOYSA-H P(=O)([O-])([O-])[O-].[B+3].[Al+3].P(=O)([O-])([O-])[O-] Chemical compound P(=O)([O-])([O-])[O-].[B+3].[Al+3].P(=O)([O-])([O-])[O-] GJCCSSFIKKMJIA-UHFFFAOYSA-H 0.000 description 1
- GTUNMKRGRHOANR-UHFFFAOYSA-N [B].[Ca] Chemical compound [B].[Ca] GTUNMKRGRHOANR-UHFFFAOYSA-N 0.000 description 1
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- -1 boron magnesium aluminate Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910001648 diaspore Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
本发明涉及一种硼酸铝复合多孔陶瓷及其制备方法。其方案是将骨料与混合粉按重量比为20～90/10～80混合，外加1～6wt%的结合剂，混合后成型。在90～120℃条件下干燥20～30小时，升温到200～500℃保温20～280分钟，再升温至700～1700℃保温30～600分钟，自然冷却。其中：混合粉的制备方法是，将含铝化合物细粉与硼酸粉混合，混合后的AlxByOz为，x＝16～22、y＝2～5、z＝30～36。含铝的化合物细粉由Al2O3、Al2O3·3H2O、Al2O3·H2O组成，分别为混合粉的0～70wt%、0～80wt%、0～70wt%。本发明工艺简单、成本低廉、易于控制，生产的陶瓷具有保温和透气性好的特点。该陶瓷和其它材料复合可作为保温材料、金属熔体精炼用透气陶瓷等。The invention relates to an aluminum borate composite porous ceramic and a preparation method thereof. The solution is to mix the aggregate and the mixed powder at a weight ratio of 20-90/10-80, add 1-6 wt% of binder, and form the mixture after mixing. Dry at 90-120°C for 20-30 hours, raise the temperature to 200-500°C for 20-280 minutes, then raise the temperature to 700-1700°C for 30-600 minutes, and cool naturally. Wherein: the preparation method of the mixed powder is to mix the aluminum-containing compound fine powder with boric acid powder, and the mixed AlxByOz is x=16-22, y=2-5, z=30-36. Aluminum-containing compound fine powder is composed of Al 2 O 3 , Al 2 O 3 ·3H 2 O, Al 2 O 3 ·H 2 O, respectively 0-70wt%, 0-80wt%, 0-70wt% of the mixed powder . The invention has the advantages of simple process, low cost and easy control, and the produced ceramics have the characteristics of good heat preservation and air permeability. The composite of the ceramics and other materials can be used as thermal insulation materials, gas-permeable ceramics for metal melt refining, and the like.
Description
One, technical field
The invention belongs to the porous ceramics technical field, especially relate to a kind of aluminium borate composite porous ceramics and preparation method thereof.
Two, background technology
Because porous ceramics has advantages such as low density, high permeability, corrosion-resistant, excellent heat insulation property, high temperature resistant and long service life, they can be used as high-temperature gas filter, solid particle filter, filter for molten metal, be used at high temperature using the equipment that needs resist chemical, good penetrability, and, handle the aspects such as support of the catalyst of chemical plant refuse and vehicle exhaust as the physical sepn dividing plate.They also can be used as refractory materials, lagging material, transmitter, thermistor and porous piezoceramics, heat exchanger etc.In addition, they also have the potential application prospect in the bio-medical field.In a word, porous ceramics has been widely used in fields such as metallurgy, chemical industry, the energy, environmental protection, biology.
In recent years, the research of aluminum borate pottery is mainly concentrated in the preparation and application of aluminium borate whisker, because the low (2.93g/cm of the density of aluminum borate
3), fusing point height (1440 ℃), its mechanical property can with SiC, Si
3N
4Comparable to; The thermal expansivity of aluminum borate is little by (4.2 * 10
-6/ K), the little (4～5w/ (m.k), thereby have well insulated of thermal conductivity; Aluminum borate has good anti-corrosion, and it boils 8h in 90 ℃ 1 mol HCl solution, and weight only reduces 1%.Thereby aluminum borate makes various matrix materials as add strengthening, and can improve physical strength, thermostability and the erosion resistance of material.
At present, because preparation technology's more complicated of aluminium borate whisker and whisker size are difficult to control, limited the application aspect much of aluminium borate whisker.
(US 4 for a kind of aluminum borate stupalith of high-strength compact, 774,210), for example aluminum oxide, aluminum chloride, aluminium hydroxide, a diaspore and aluminum nitrate and boron trioxide are raw material to adopt aluminum contained compound, add 0.25～10% short burning agent for example boron calcium aluminate, boron magnesium aluminate, boron aluminum phosphate and boron sikicate aluminum etc., though prepare a kind of adiabatic aluminum borate pottery intensity height, density is low, complex process, cost height.
Adopting Burow Solution and boric acid is feedstock production aluminum borate pottery (US 5,183,785), be to calcine at a certain temperature, the powder mix after will calcining then, moulding, sintering processes obtains high porosity, the controlled aluminum borate pottery of pore opening distribution at a certain temperature.Be earlier Burow Solution to be become mud with boric acid, calcining then will be calcined back powder mix moulding again, obtain the aluminum borate pottery at a certain temperature behind the sintering.Though this invention can be prepared void content 40～60%, pore size is the aluminum borate pottery of 0.5 μ m～5 μ m, but the two step calcining procesies that adopt, the technology more complicated.
Three, summary of the invention
The purpose of this invention is to provide a kind of technology simple, with low cost, produce be easy to control, aluminum borate porous ceramics that insulation and permeability are good and preparation method thereof.
For realizing above-mentioned task, the technical solution used in the present invention is: with aggregate and powder mix is 20～90/10～80 to mix by weight, add the wedding agent of 1～6wt%, mixed 5～60 minutes, moulding, drying is 20～30 hours under 90～120 ℃ of conditions, is warmed up to 200～500 ℃ of insulations 20～280 minutes, be warming up to 700～1700 ℃ of insulations 30～600 minutes again, naturally cooling.
Wherein: the preparation method of powder mix is the aluminum contained compound fine powder to be mixed mixed Al with boric acid powder
xB
yO
zFor, x=16～22, y=2～5, z=30～36, aluminiferous compound fine powder is by Al
2O
3Fine powder, Al
2O
33H
2O fine powder, Al
2O
3H
2The O fine powder is formed, and is respectively 0～70wt%, 0～80wt%, the 0～70wt% of powder mix.
Described aggregate is that one or both or two or more particulate matter are formed in corundum, mullite, alumina, magnesia, the magnesium-aluminium spinel.
The granularity of described corundum, mullite, alumina, magnesia, magnesium-aluminium spinel is 5～0mm, Al
2O
3Fine powder, Al
2O
33H
2O fine powder, Al
2O
3H
2The granularity of O fine powder, boric acid powder is less than 180 orders.
Described wedding agent is one or both or the two or more combination in starch, clay, resin, silicon sol, aluminium colloidal sol, polyvinyl alcohol, glycerine, the methylcellulose gum.
Described moulding or press or be ramming or for pouring into a mould, the pressure of mechanical pressing is 45～350MPa for machine.
The speed of described intensification is 50～300 ℃/h, and the speed of Sheng Wening is 50～300 ℃/h again.
Owing to adopt technique scheme, technology of the present invention is simple, with low cost, production is easy to control, utilize aluminiferous compound and boric acid to decompose the preparation hole, by changing raw material granularity and control process parameters, can obtain different apertures, apparent porosity and be 15～80%, porous ceramics, the porous ceramics of being produced has insulation and the good characteristics of permeability.The porous ceramics that makes and other material are compound, can be used as lagging material, metal melt refining with permeable-gas ceramics etc.
Four, embodiment
Embodiment 1
With the fused white corundum of 1.0～0.2mm and powder mix is 60～80/20～40 to mix by weight.Powder mix is by the fused white corundum fine powder of 9-15wt%, α-Al of 15～30wt%
2O
3The aluminium hydroxide fine powder of micro mist, 20～50wt% and boric acid powder mix.Mixed Al
xB
yO
zScope be that x=18, y=4, z=33 add 2～5wt% clay, mix after 10～15 minutes mechanical pressing under 100～300MPa pressure.Drying is 24 hours under 100～110 ℃ of conditions, and the heat-up rate with 100～200 ℃/h is heated to 280～450 ℃ then, is incubated 30～200 minutes; Heat-up rate with 100～200 ℃/h is heated to 800～1600 ℃ again, is incubated 30～240 minutes, takes out behind the naturally cooling.
Adopt X-ray diffraction to analyze its thing phase composite, main thing is aluminum borate (9Al mutually
2O
32B
2O
3) with corundum mutually.Recording its volume density is 2.54g/cm
3, apparent porosity is 35%, and compressive strength is 45MPa, and Gas permeability is 0.44 μ m
2Sample φ 36 * 36mm was immersed in 870 ℃ of molten aluminiums 48 hours, take out sample, cut section, observe, do not see that sample is permeated by molten aluminium.
Embodiment 2
With the magnesium-aluminium spinel of 1-0.5mm and powder mix is 50～70/30～50 to mix by weight.Powder mix is by the fused white corundum fine powder of 12～25wt%, α-Al of 20～35wt%
2O
3The pseudo-boehmite fine powder of micro mist, 20～35wt% mixes with boric acid powder, mixes back Al
xB
yO
zScope be that x=18, y=4, z=33 add the silicon sol of 2～5wt%.Mix after 10～15 minutes mechanical pressing under 150～200MPa pressure.Drying is 24 hours under 100～110 ℃ of conditions, and the heat-up rate with 100～200 ℃/h is heated to 280～450 ℃ then, is incubated 30～200 minutes; Heat-up rate with 100～200 ℃/h is heated to 800～1600 ℃ again, is incubated 30～240 minutes, takes out behind the naturally cooling.
Adopt X-ray diffraction to analyze its thing phase composite, main thing is aluminum borate (9Al mutually
2O
32B
2O
3) with magnesium-aluminium spinel mutually.Recording its volume density is 2.12g/cm
3, apparent porosity is 40%, and compressive strength is 40MPa, and Gas permeability is 0.56 μ m
2Sample φ 36 * 36mm was immersed in 870 ℃ of molten aluminiums 48 hours, take out sample, cut section, observe, do not see that sample is permeated by molten aluminium.
Claims (7)
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|---|---|---|---|
| CNB2005100189565A CN1323051C (en) | 2005-06-20 | 2005-06-20 | A kind of aluminum borate composite porous ceramic and preparation method thereof |
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|---|---|---|---|
| CNB2005100189565A CN1323051C (en) | 2005-06-20 | 2005-06-20 | A kind of aluminum borate composite porous ceramic and preparation method thereof |
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|---|---|
| CN1730427A CN1730427A (en) | 2006-02-08 |
| CN1323051C true CN1323051C (en) | 2007-06-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418608B (en) * | 2013-08-20 | 2016-08-10 | 中国科学院上海硅酸盐研究所 | Low temperature firing method of silicon carbide porous ceramics |
| CN108751968B (en) * | 2018-06-13 | 2020-12-22 | 北京科技大学 | A kind of preparation method of intrinsically porous porous ceramic material |
| CN111205067B (en) * | 2020-01-15 | 2022-04-01 | 武汉科技大学 | Glass-ceramic material for cooperative protection of neutrons and gamma rays and preparation method thereof |
| CN116218491B (en) * | 2023-05-09 | 2023-07-21 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Hydrogel plugging agent, preparation method of hydrogel plugging agent and water-based drilling fluid |
| CN116751073B (en) * | 2023-08-23 | 2023-10-24 | 天津南极星隔热材料有限公司 | Preparation method of lightweight heat-insulating aluminum borate porous ceramic with multistage pore structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053364A (en) * | 1989-06-12 | 1991-10-01 | Aluminum Company Of America | Aluminum borate ceramic matrix composite |
| WO1992000253A1 (en) * | 1990-06-29 | 1992-01-09 | Coors Porcelain Company | Aluminum borate ceramics and process for producing same |
| US5098871A (en) * | 1990-12-13 | 1992-03-24 | Aluminum Company Of America | Aluminum borate ceramic matrix composite |
| JPH10251076A (en) * | 1997-03-11 | 1998-09-22 | Nichias Corp | Manufacturing method of porous inorganic material |
-
2005
- 2005-06-20 CN CNB2005100189565A patent/CN1323051C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053364A (en) * | 1989-06-12 | 1991-10-01 | Aluminum Company Of America | Aluminum borate ceramic matrix composite |
| WO1992000253A1 (en) * | 1990-06-29 | 1992-01-09 | Coors Porcelain Company | Aluminum borate ceramics and process for producing same |
| US5098871A (en) * | 1990-12-13 | 1992-03-24 | Aluminum Company Of America | Aluminum borate ceramic matrix composite |
| JPH10251076A (en) * | 1997-03-11 | 1998-09-22 | Nichias Corp | Manufacturing method of porous inorganic material |
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