CN116477961A - Aluminum titanate-mullite high-thermal shock high-strength ceramic material and preparation method thereof - Google Patents
Aluminum titanate-mullite high-thermal shock high-strength ceramic material and preparation method thereof Download PDFInfo
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- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 48
- 230000035939 shock Effects 0.000 title claims abstract description 42
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 41
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910052863 mullite Inorganic materials 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 229910000505 Al2TiO5 Inorganic materials 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 40
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 claims abstract description 40
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 13
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 10
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910006501 ZrSiO Inorganic materials 0.000 claims abstract description 3
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 16
- 239000011449 brick Substances 0.000 claims description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000010304 firing Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 235000010215 titanium dioxide Nutrition 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 4
- -1 mgCO 3 Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 2
- 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 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 12
- 238000001035 drying Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229910010413 TiO 2 Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000011085 pressure filtration Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- C04B35/478—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on aluminium titanates
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Abstract
The invention discloses an aluminum titanate-mullite high-thermal shock high-strength ceramic material which comprises the following components in percentage by mass: kaolin: 10-20%; synthesizing aluminum titanate material: 65-70%; zirconium silicate: 5-10%; silica: 5-15%. The invention also discloses a preparation method of the aluminum titanate-mullite high-thermal shock high-strength ceramic material. The aluminum titanate-mullite high-thermal shock high-strength ceramic material provided by the invention adopts specially-made synthetic aluminum titanate material, and combines specific decomposition temperature to ensure that kaolin is decomposed at high temperature and SiO is generated 2 The mullite is uniformly distributed around the aluminum titanate, so that the strength is greatly enhanced; at the same time SiO 2 Can also be fixedIs melted into aluminum titanate material to increase stability and ZrSiO 4 Evenly distributed in the grain boundary of each main crystal phase to play a toughening role, and the linear expansion coefficient of the ceramic material is less than 1.0 x 10 at the temperature of 20-750 ℃ through the synergistic effect of the raw materials ‑6 And has excellent comprehensive properties such as high strength, low water absorption, high thermal shock resistance and the like.
Description
Technical Field
The invention belongs to the technical field of inorganic nonmetallic ceramic materials, and particularly relates to an aluminum titanate-mullite high-thermal shock high-strength ceramic material and a preparation method thereof.
Background
The ceramic material has a series of advantages of high temperature resistance, erosion resistance, abrasion resistance and the like, but the brittleness problem is difficult to be effectively solved, so that the ceramic material becomes a key for limiting the reliability and the safety of the ceramic material and further limiting the wide application of the ceramic material. Although superplastic ceramic materials are capable of undergoing some plastic deformation at high temperatures, they still exhibit brittleness at room temperature.
At present, the high thermal shock material mainly comprises lithium, cordierite, fused quartz and SIC materials. The lithium material is expensive, and the use temperature is not higher than 1350 ℃; the cordierite material has high porosity, low use temperature and weak corrosion resistance; fused silica has high heat resistance but low coefficient of thermal expansion; SIC materials have weak oxidation resistance and are expensive. The market is in urgent need of ceramic materials with high thermal shock, low water absorption and low cost at a temperature higher than 1350 ℃. Aluminum Titanate (AT) having a linear expansion coefficient of less than 1.0X10 AT 20 ℃ to 1000 DEG C -6 The catalyst has the characteristics of high thermal shock performance, low strength, easiness in decomposition at 750-1250 ℃ in the use process, high synthesis temperature (more than 1500 ℃), long synthesis time and low synthesis purity, and is limited to popularization and use in the market.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the main purpose of the invention is to provide the aluminum titanate-mullite high-thermal shock high-strength ceramic material with the use temperature higher than 1350 ℃ and high thermal shock, low water absorption and low cost. The invention also provides a preparation method of the aluminum titanate-mullite high-thermal shock high-strength ceramic material.
The invention aims at realizing the following technical scheme:
in a first aspect, an aluminum titanate-mullite high thermal shock high strength ceramic material comprises the following components in percentage by mass:
kaolin: 10-20%;
synthesizing aluminum titanate material: 65-70%;
zirconium silicate: 5-10%;
silica: 5-15%.
In certain embodiments, the kaolin comprises the following compositions in mass percent: al (Al) 2 O 3 ≥35％，SiO 2 ≤48％，Na 2 O is less than or equal to 1%, ca and MgO are less than or equal to 1%, and the balance is H 2 O, further, its chemical composition is 46.54% of SiO 2 39.5% Al 2 O 3 13.15% H 2 O and Na 2 O is 0.51%, ca and MgO are 0.3%.
In certain embodiments, the synthetic aluminum titanate material is obtained by a preparation method comprising:
a1 Alumina powder, titanium dioxide, mgCO 3 、ZnO、Fe 2 O 3 Mixing to obtain a mixture;
a2 Adding water into the mixture, stirring uniformly, and then press-filtering to form a cake;
a3 The cake is formed into bricks by a vacuum pugging machine and dried for standby;
a4 Placing the mixture into a high-temperature kiln oxidizing atmosphere, firing at 1400 ℃, preserving heat for 2 hours, firing, cooling and crushing to obtain the synthetic aluminum titanate material.
Further, the mixing in step 1) comprises the following components in percentage by mass: alumina powder: 40-45%; titanium white powder: 35-40%; mgCO 3 ：10-20％；ZnO：3-5％；Fe 2 O 3 ：2-4％
Further, the grain size of the aluminum titanate material is 5-20 mu m.
In certain embodiments, the ZrO in the zirconium silicate 2 The content of (2) is more than or equal to 65wt percent, and the grain diameter is 5-15 mu m.
In certain embodiments, the silica is SiO 2 The content of (2) is more than or equal to 995wt% and particle size of 3-8um.
The preparation method of the aluminum acid-mullite high-thermal shock high-strength ceramic material comprises the following steps of:
b1 Mixing kaolin, synthetic aluminum titanate material, zirconium silicate and silicon dioxide according to mass proportion;
b2 Adding water into the mixture obtained in the step B1), uniformly stirring, and then press-filtering to form a cake;
b3 The cake is formed into mud strips for standby by a vacuum pugging machine;
b4 Molding the mud strip into a product;
b5 And (3) placing the product into a high-temperature kiln for firing, and naturally cooling to room temperature to obtain the aluminum titanate-mullite high-thermal shock high-strength ceramic material.
Further, the firing conditions are: the firing temperature is 1400 ℃ and the firing time is 1-2 hours under the oxidizing atmosphere.
Compared with the prior art, the invention has at least the following advantages:
1) The aluminum titanate-mullite high-thermal shock high-strength ceramic material provided by the application combines specific decomposition temperature simultaneously by adopting special synthetic aluminum titanate material, so that kaolin is decomposed at high temperature and SiO is realized 2 The mullite is uniformly distributed around the aluminum titanate, so that the strength is greatly enhanced; at the same time SiO 2 Can also be fixedly melted into aluminum titanate material to increase stability and ZrSiO 4 Evenly distributed in the grain boundary of each main crystal phase to play a toughening role, and the linear expansion coefficient of the ceramic material is less than 1.0 x 10 at the temperature of 20-750 ℃ through the synergistic effect of the raw materials -6 And has excellent comprehensive properties such as high strength, low water absorption, high thermal shock resistance and the like.
2) The synthetic aluminum titanate material adopts the AL with high purity and high fineness 2 O 3 With TiO 2 Aluminum titanate, mgCO, is provided which has a high reaction energy to form a substantially low-expansion host crystalline phase 3 、Fe 2 O 3 The ZnO and the ZnO act cooperatively, so that the reaction temperature and the reaction time of the aluminum titanate material can be effectively reduced, and the prepared synthetic aluminum titanate material is sintered for 2 hours at the temperature of 1400 ℃; and preparation ofNot only is the mechanical strength greatly improved, but also the inherent low coefficient of thermal expansion and corrosion resistance of the aluminum titanate sintered body is not lost.
3) The preparation method of the aluminum titanate-mullite high-thermal shock high-strength ceramic material provided by the invention has the advantages of simple process and strong repeatability, and is suitable for industrial popularization and application.
Detailed Description
The invention will now be further described in detail with reference to the following examples, which are intended to be illustrative only and not limiting in any way.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as an upper range limit, or as a lower range limit, it is to be understood that any range is specifically disclosed by combining any pair of the upper range limit or preferred value with any lower range limit or preferred value, regardless of whether the range is specifically disclosed. Unless otherwise indicated, the numerical range values set forth herein are intended to include the endpoints of the range, and all integers and fractions within the range.
All percentages, parts, ratios, etc. herein are by weight unless otherwise specified.
The materials, methods, and examples herein are illustrative and, unless otherwise indicated, should not be construed as limiting.
In the following examples, the kaolin comprises the following components in percentage by mass: comprising 46.54% of SiO 2 39.5% Al 2 O 3 13.15% H 2 O and Na 2 O≤0.51％，Ca、MgO≤0.3％。
In certain embodiments, the ZrO in the zirconium silicate 2 The content of (2) is more than or equal to 65wt percent, and the grain diameter is 5-15 mu m.
In certain embodiments, the silica is SiO 2 The content of (3) is more than or equal to 99.5wt% and the grain diameter is 3-8um.
Wherein Al is 2 O 3 With TiO 2 The synthesis of aluminium titanate from the mixture by sintering belongs to the prior art,thus for the raw material Al 2 O 3 With TiO 2 There is no particular limitation.
In the following examples, the method for testing corrosion resistance was: adding and pouring out molten aluminum, and then entering the skin without falling off times;
decomposition rate: the product was cooled to room temperature at 1100 ℃ and then was repeated 30 times to detect TiO 2 (titanium dioxide) as a percentage of the article.
Example 1
The aluminum titanate-mullite high-shock-resistance high-strength ceramic material provided by the invention is prepared by the following method, and comprises the following steps:
1) Preparation of synthetic aluminium titanate material
The preparation method of the synthetic aluminum titanate material in the embodiment comprises the following steps:
a1 40% alumina powder, 35% titanium dioxide, 18% MgCO 3 、5％ZnO、2％Fe 2 O 3 Mixing;
a2 Adding water into the mixture obtained in the step A1), uniformly stirring, and then performing pressure filtration to obtain a cake;
a3 Pressing the cake into a pressed brick with the specification of 230mm 115mm 65mm by a vacuum pugging machine;
a4 Naturally drying the pressed brick until the water content is less than 15%, putting the pressed brick into a high-temperature kiln, drying at 250 ℃ for 3 hours, heating to 1400 ℃ for 12 hours, preserving heat for 1.5 hours, naturally cooling, and discharging the pressed brick for standby to obtain an aluminum titanate brick type material;
a5 Crushing the fired aluminum titanate brick to a material diameter of 10 mu m to obtain a synthetic aluminum titanate material for later use.
2) Mixing 15% of kaolin, 70% of synthetic aluminum titanate material prepared in the step 1), 10% of zirconium silicate and 5% of silicon dioxide in a metering manner;
3) Adding water into the mixture obtained in the step 2), uniformly stirring, and then press-filtering to form a cake;
4) Forming the cake into mud strips for standby by a vacuum pugging machine;
5) Naturally drying the mud strip shaped product in the natural world until the water content is less than 12%;
6) And (3) placing the product in a high-temperature kiln, preserving heat for 2 hours at 100 ℃, then heating to 1385 ℃ for 1.2 hours by using 10 hours, and naturally cooling to room temperature to obtain the aluminum titanate-mullite high-thermal shock high-strength ceramic material.
Example 2
The aluminum titanate-mullite high-shock-resistance high-strength ceramic material provided by the invention is prepared by the following method, and comprises the following steps:
1) Preparation of synthetic aluminium titanate material
The preparation method of the synthetic aluminum titanate material in the embodiment comprises the following steps:
a1 45% alumina powder, 35% titanium dioxide, 13% MgCO 3 、3％ZnO、4％Fe 2 O 3 Mixing;
a2 Adding water into the mixture obtained in the step A1), uniformly stirring, and then performing pressure filtration to obtain a cake;
a3 Pressing the cake into a pressed brick with the specification of 230mm 115mm 65mm by a vacuum pugging machine;
a4 Naturally drying the pressed brick until the water content is less than 15%, putting the pressed brick into a high-temperature kiln, drying at 250 ℃ for 3 hours, heating to 1400 ℃ for 12 hours, preserving heat for 2.0 hours, naturally cooling, and discharging the pressed brick for standby to obtain an aluminum titanate brick type material;
a5 Crushing the fired aluminum titanate brick to a material diameter of 15um to obtain a synthetic aluminum titanate material for later use.
2) Mixing 20% of kaolin, 65% of synthetic aluminum titanate material prepared in the step 1), 5% of zirconium silicate and 10% of silicon dioxide in a metering manner;
3) Adding water into the mixture obtained in the step 2), uniformly stirring, and then press-filtering to form a cake;
4) Forming the cake into mud strips for standby by a vacuum pugging machine;
5) Naturally drying the mud strip shaped product in the natural world until the water content is less than 12%;
6) And (3) placing the product in a high-temperature kiln, preserving heat for 2 hours at 100 ℃, then heating to 1400 ℃ for 1.5 hours by using 10 hours, and naturally cooling to room temperature to obtain the aluminum titanate-mullite high-thermal shock high-strength ceramic material.
Comparative example 1
The components and the proportions of the preparation method of the aluminum titanate-mullite high-thermal shock high-strength ceramic material provided by the comparative example are basically the same as those of the embodiment 2, except that silicon dioxide is not added, and the preparation method is the same as that of the embodiment 2;
the performance of the aluminum titanate-mullite high-thermal shock high-strength ceramic material prepared in comparative example 2 was tested, and the results are shown in Table 2.
Comparative example 2
The components and proportions of the preparation method of the aluminum titanate-mullite high-thermal shock high-strength ceramic material provided by the comparative example are basically the same as those of the embodiment 2, except that kaolin is not added, and the preparation method is the same as that of the embodiment 2;
the performance of the aluminum titanate-mullite high-thermal shock high-strength ceramic material prepared in comparative example 2 was tested, and the results are shown in Table 2.
Comparative example 3
The components and proportions of the preparation method of the aluminum titanate-mullite high-thermal shock high-strength ceramic material provided by the comparative example are the same as those of the embodiment 2, and the preparation method is basically the same as the embodiment 2, except that: and 6) placing the product in a high-temperature kiln, preserving heat for 2 hours at 100 ℃, then heating to 1300 ℃ for 1.5 hours by using 10 hours, and naturally cooling to room temperature to obtain the aluminum titanate-mullite high-thermal shock high-strength ceramic material.
The performance of the aluminum titanate-mullite high-thermal shock high-strength ceramic material prepared in comparative example 3 was tested, and the results are shown in Table 2.
Performance test:
1) Performance index of synthetic aluminum titanate material
The synthetic aluminum titanate materials prepared in step 1) of examples 1 and 2 were subjected to performance test, and the results are shown in table 1:
table 1: performance index of synthetic aluminum titanate material
| Name of the name | Expansion coefficient at 20-700 DEG C | Flexural Strength/MPa | Corrosion resistance |
| Example 1 | 0.85*10-6 | 126 | 51 |
| Example 2 | 0.7*10-6 | 142 | 45 |
As can be seen from table 1, the synthetic aluminum titanate material prepared by the preparation method in the present application has a low thermal expansion coefficient, and maintains the inherent low thermal expansion coefficient of aluminum titanate while also having excellent flexural strength and corrosion resistance.
2) Aluminum titanate-mullite high-thermal shock high-strength ceramic material
The aluminum titanate-mullite high-thermal shock high-strength ceramic materials prepared in the step 1) of the embodiment 1 and the embodiment 2 are subjected to performance test, and the results are shown in the table 2:
TABLE 2 Performance index of aluminum titanate-mullite high thermal shock high strength ceramic materials
As can be seen from the data in Table 2, the aluminum titanate-mullite high-thermal-shock high-strength ceramic material obtained by the preparation method of the application has the advantages of high strength, low water absorption, high thermal shock resistance, low decomposition rate and the like by the synergistic action of the components and sintering temperature in the aluminum titanate-mullite high-thermal-shock high-strength ceramic material in the application as compared with comparative example 1, comparative example 2 and comparative example 3.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (9)
1. The aluminum titanate-mullite high-thermal shock high-strength ceramic material is characterized by comprising the following components in percentage by mass:
kaolin: 10-20%;
synthesizing aluminum titanate material: 65-70%;
zirconium silicate: 5-10%;
silica: 5-15%.
2. The aluminum-mullite high thermal shock high strength ceramic material of claim 1 wherein the kaolin comprises the following composition in mass percent: al (Al) 2 O 3 ≥35％，SiO 2 ≤48％，Na 2 O≤1％，Ca、MgO≤1％，H 2 O is the balance.
3. The aluminum acid-mullite high thermal shock high strength ceramic material according to claim 1 or 2, wherein the synthetic aluminum titanate material is obtained by the following preparation method:
a1 Alumina powder, titanium dioxide, mgCO 3 、ZnO、Fe 2 O 3 Mixing to obtain a mixture;
a2 Adding water into the mixture, stirring uniformly, and then press-filtering to form a cake;
a3 The cake is formed into bricks by a vacuum pugging machine and dried for standby;
a4 Placing the mixture into a high-temperature kiln oxidizing atmosphere, firing at 1400 ℃, preserving heat for 2 hours, firing, cooling and crushing to obtain the synthetic aluminum titanate material.
4. The aluminum acid-mullite high thermal shock high strength ceramic material of claim 3 wherein the mixing of step 1) comprises, in mass percent: alumina powder: 40-45%; titanium white powder: 35-40%; mgCO 3 ：10-20％；ZnO：3-5％；Fe 2 O 3 ：2-4％。
5. The aluminum acid-mullite high thermal shock high strength ceramic material of claim 4 wherein the synthetic aluminum titanate material has a particle size of 5-20 μm.
6. The aluminum acid-mullite high thermal shock high strength ceramic material of claim 1 wherein ZrO in the zirconium silicate 2 The content of (2) is more than or equal to 65wt percent, and the grain diameter is 5-15 mu m.
7. The aluminum-mullite high thermal shock high strength ceramic material of claim 1 wherein the silica is SiO 2 The content of (3) is more than or equal to 99.5wt% and the grain diameter is 3-8um.
8. A method for preparing the aluminum acid-mullite high thermal shock high strength ceramic material according to any one of claims 1 to 7, comprising the steps of:
b1 Kaolin and synthetic aluminum titanate material、ZrSiO 4 、SiO 2 Metering and mixing according to mass proportion;
b2 Adding water into the mixture obtained in the step B1, uniformly stirring, and then press-filtering to form a cake;
b3 The cake is formed into mud strips for standby by a vacuum pugging machine;
b4 Molding the mud strip into a product;
b5 And (3) placing the product into a high-temperature kiln for firing, and naturally cooling to room temperature to obtain the aluminum titanate-mullite high-thermal shock high-strength ceramic material.
9. The method for preparing the aluminum acid-mullite high thermal shock high strength ceramic material according to claim 8, wherein the firing conditions are as follows: the firing temperature is 1400 ℃ and the firing time is 1-2 hours under the oxidizing atmosphere.
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