CN109608171A - A kind of highly corrosion resistant special ceramic material, preparation method and application - Google Patents
A kind of highly corrosion resistant special ceramic material, preparation method and application Download PDFInfo
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- CN109608171A CN109608171A CN201910081850.1A CN201910081850A CN109608171A CN 109608171 A CN109608171 A CN 109608171A CN 201910081850 A CN201910081850 A CN 201910081850A CN 109608171 A CN109608171 A CN 109608171A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—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
- C04B35/16—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 silicates other than clay
- C04B35/18—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 silicates other than clay rich in aluminium oxide
- C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
- F27D5/0006—Composite supporting structures
- F27D5/0012—Modules of the sagger or setter type; Supports built up from them
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
Abstract
The present invention provides a kind of highly corrosion resistant special ceramic material, preparation method and application, the special ceramic material includes the component of following weight: the Suzhou soil 12-18% of 8-10 mesh, the calcined alumina 8-12% of 8-10 mesh, the zirconium silicate 3-6% of 8-10 mesh, the roller stick powder 8-12% of 8-10 mesh, the thin roller stick particle 5-10% of 8-12 purpose, the thick roller stick particle 15-18% of 12-16 purpose, the cordierite 10-15% of 12-16 mesh, the yellow starch gum of 45# the mullite 8-10% and 1-5% of 8-10 mesh, the water of 3-9%, the present invention passes through the partial size for reasonably controlling each raw material and adds the zirconium silicate of appropriate level, make the special ceramic material being prepared that there is excellent corrosion resistance while having both ideal mechanical property.
Description
Technical field
The present invention relates to a kind of special ceramic materials, preparation method and application, and in particular to one kind has highly corrosion resistant
Anode material of lithium battery fire use special ceramic material, preparation method and application.
Background technique
Current ternary lithium battery LNCM is domestic widely used cell positive material, in production process all in fire resisting kiln
It is synthesized in furnace, holds the saggar of burning generally with cordierite composite mullite matter, be very easy to the phenomenon that saggar is etched occur, cause
The inner wall being etched generates slight crack and peels off layer by layer, when container material is quickly cooled down after high temperature, with the increase of number of use,
Container is easy to produce crackle, and the thermal shock resistance of container is destroyed.
Application No. is the Chinese invention patents of CN201410174356.7 to disclose a kind of preparation of alkali-resistant property saggar
Method, comprising: 1) be substrate material filling sintering synthesis aluminum-spinel by anhydrous magnesium chloride and Alpha's aluminium oxide, by synthesis
The aluminum-spinel is mixed with sodium rice gamma aluminium oxide, obtains fine grained；2) coarse granule and the fine grained are compared according to 6: 4
Example carries out grain mixture ratio mixing, coarse granule 60%, fine grained 40%, wherein the coarse granule includes electrofused mullite and electric smelting
The mixture of fused alumina zirconia；3) above-mentioned raw materials mixed are put into after squeezing out air in film band and are tightened, cohered in waterless resin
Agent acts on lower compression moulding；4) it after the blank after compression moulding being conserved preset time, carries out loading of kiln and is fired into finished product, the hair
The bright corrosion that highly basic is effective against by addition magnesium aluminate spinel.
Application No. is the Chinese invention patents of CN200910146662.9 to disclose a kind of saggar, is for manufacturing lithium ion
The saggar of the positive active material of battery contains 30 mass of mass %~70 % of spinelle, 15 matter of mass %~70 of cordierite
The % and 0 mass % of mass %~35 of mullite is measured, the original of positive active material when facilitating for firing is investigated to spinelle
The corrosion resistance of the diffusion of material.It is understood that when the containing ratio of spinelle is less than 30 mass %, for positive active material
Raw material diffusion corrosion resistance reduce.On the other hand it is believed that when the containing ratio of spinelle is more than 70 mass %, saggar
Coefficient of thermal expansion increase, be easy to happen the crackle saggar be coefficient of thermal expansion be not higher than containing 90% or more magnesia or spinelle
Saggar composition, therefore be able to suppress manufacture positive active material when cooling process in crackle generation.
By above-mentioned record it is found that the design that the aforementioned prior art improves saggar corrosion resistance is by being formed and controlling casket
There is the content of magnesium aluminate spinel very much come the corrosion resisting property realized, however only have saggar by the control of content in alms bowl
Limit, above scheme are not able to satisfy requirement of the current people to saggar corrosion resistance.
Summary of the invention
For the problem undesirable with material corrosion resistance effect of above-mentioned saggar existing for currently available technology, the present invention is quasi-
There is provided a kind of special ceramic material and preparation method thereof with highly corrosion resistant, it is intended to improve special ceramic material, especially
The corrosion resistance that anode material of lithium battery is burnt paper as sacrificial offerings with special ceramic material, while being also able to maintain excellent mechanical property.
In order to solve the above technical problems, one of the objects of the present invention is to provide a kind of highly corrosion resistant special cermacis materials
Material, the special ceramic material includes the component of following weight: the calcined oxide of Suzhou soil 12-18%, the 8-10 mesh of 8-10 mesh
The thin roller stick particle 5-10% of roller stick powder 8-12%, 8-12 purpose of zirconium silicate 3-6%, 8-10 mesh of aluminium 8-12%, 8-10 mesh,
The 45# mullite 8-10% of cordierite 10-15%, 8-10 mesh of thick roller stick particle 15-18%, 12-16 mesh of 12-16 purpose and
The water of the yellow starch gum of 1-5%, 3-9%.
Preferably, the component includes 12% Suzhou soil, 8% calcined alumina, 6% zirconium silicate, 10% roller stick powder,
Thin roller stick particle 10%, thick roller stick particle 18%, cordierite 15%, 45# mullite 10%.
It is further preferred that the partial size of thick, thin club particle is respectively 14-16 mesh and 8-10 mesh, the grain of the cordierite
Diameter is 15-16 mesh.
Another object of the present invention is to provide the preparation methods of above-mentioned special ceramic material, and the method includes walking as follows
It is rapid:
1) prepare the Suzhou soil of 12-18%, the calcined alumina of 8-12%, the zirconium silicate of 3-6%, 8-12% roller stick
Mixed mark is that raw material A is spare after powder, 8-12%45# mullite are ground to 8-10 mesh；
2) prepare the cordierite of roller stick particle 15-25%, 12-16 mesh of roller stick particle 5-15%, 12-16 mesh of 8-12 mesh
The yellow starch gum of 15-25%, 1-5%, the water mixed mark of 3-9% are that raw material B is spare；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3), which is placed in sealing container, carries out aging processing；
5) step 4) is placed in progress isothermal hydrostatic profile on pressure forming machine through the raw material of aging processing and obtains green body；
6) dry after standing the green body of step 5), then it is fired.
Further, the time of the aging processing is 12 hours or more.
Further, the technological parameter of the isothermal static pressure are as follows: in 1000-1200 DEG C of processing 30-50min.
Further, the time that the green body is stood is 12 hours or more.
Further, the temperature of the drying is 300-500 DEG C, and the time is 10 hours or more.
Further, the temperature of the firing is 1360-1510 DEG C, and the time is 6-7 hours.
Further, the method also includes special ceramic material carry out flash polishing, blow off the step of.
Another object of the present invention is to provide a kind of aforementioned special ceramic materials in anode material of lithium battery firing casket
Application in alms bowl.
Studies have shown that grain-boundary crack can be generated after the excessive sintering of solid material partial size, battery is easier in subsequent use
The corrosive substance of material, which enters crackle, corrosiveness and then crack, and when partial size is too small, it is easily produced in compacting
Raw lamination crack.The present invention finally determines base material (Soviet Union according to the physical parameter of each material on the basis of many experiments
State soil, calcined alumina, zirconium silicate, roller stick powder, 45# mullite) average grain diameter should control and be advisable in 8-10 mesh, and add
The partial size of material should then be controlled to be advisable in following level: 8-12 mesh and 12-16 mesh, cordierite 12- is respectively configured in roller stick particle
16 mesh.
The addition of zirconium silicate of the present invention so that machining of special ceramic material forms cross shear in calcining between raw material,
The resistance to compression of product and the intensity and corrosion resistance of effect not easy to crack and then raising special ceramic material can be dramatically increased, however
When the content of zirconium silicate is more than 6%, since cross shear effect is excessive, lateral interlayer can be had after sintering by, which causing, split
Line, and then the corrosion resistance of special ceramic material is reduced, comprehensively consider performance needs, the content of zirconium silicate should be controlled in 3-
6% is advisable.
Compared with the existing technology, the present invention passes through the partial size for reasonably controlling each raw material and adds the silicic acid of appropriate level
Zirconium makes the special ceramic material being prepared have excellent corrosion resistance while having both ideal mechanical property.
Detailed description of the invention
Macro morphology of the special ceramic material that Fig. 1 embodiment of the present invention 1 is prepared after corrosion test.
Specific embodiment
In order to better illustrate the present invention, it is easy to understand technical solution of the present invention, below to of the invention further detailed
Explanation.But following embodiments is only simple example of the invention, does not represent or limit the scope of the present invention, this
Invention protection scope is subject to claims.
The corrosion resistance test method that the present invention uses:
It is fully ground 3 hours after analytically pure LiCO3 and CoCO3 is mixed according to molar ratio 1:1, weighs 8g with electronic scale
Then bulk that reagent is pressed into 22*22*15mm with grinding tool is spare；In the special cermacis material that embodiment and comparative example is prepared
Material surfacing takes the bulk of 100*100mm spare without the region of cracking；Mentioned reagent is placed in special ceramic material test block
Middle is then placed in electric furnace be warming up to 1100 DEG C after keep the temperature 20h, cool to room temperature with the furnace, measured after cutting among the test block
Corrosion depth.
Embodiment 1
A kind of highly corrosion resistant special ceramic material, the special ceramic material include the component of following weight: the Soviet Union of 8 mesh
State soil 12%, the calcined alumina 8% of 8 mesh, the zirconium silicate 3% of 8 mesh, the roller stick powder 8% of 8 mesh, the thin roller stick particle of 8 purposes
10%, the thick roller stick particle 18% of 12 purposes, the cordierite 15% of 12 mesh, 8 mesh 45# mullite 8% and 3% yellow starch gum,
6% water.
The preparation method of above-mentioned special ceramic material includes the following steps:
1) prepare 12% Suzhou soil, 8% calcined alumina, 3% zirconium silicate, 8% roller stick powder, 8%45# not come
Mixed mark is that raw material A is spare after stone is ground to 8 mesh；
2) prepare the thin roller stick particle 10 of 8 purposes, the roller stick particle 18% of 12 mesh, 12 mesh cordierite 15%, 3% yellow paste
Smart, 6% water mixed mark is that raw material B is spare；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3) is placed in sealing container and carries out aging 12 hours；
5) step 4) is placed on pressure forming machine at 1000 DEG C of progress isothermal hydrostatic profiles through the raw material of aging processing
Reason 30min obtains green body；
6) 10 hours dry at 300 DEG C after the green body of step 5) being stood 12 hours, then fired 6 hours at 1360 DEG C.
After tested, prepared special ceramic material compression strength be 9.2MPa, corrosion depth 0.7mm.
Embodiment 2
A kind of highly corrosion resistant special ceramic material, the special ceramic material include the component of following weight: the Soviet Union of 9 mesh
State soil 14%, the calcined alumina 10% of 9 mesh, the zirconium silicate 4% of 9 mesh, the roller stick powder 9% of 9 mesh, the thin roller stick particle of 10 purposes
6%, the thick roller stick particle 17% of 14 purposes, the cordierite 14% of 15 mesh, 9 mesh 45# mullite 10% and 3% yellow starch gum,
5% water.
The preparation method of above-mentioned special ceramic material includes the following steps:
1) prepare 14% Suzhou soil, 10% calcined alumina, 4% zirconium silicate, 9% roller stick powder, 10%45# not
Carrying out mixed mark after stone is ground to 9 mesh is that raw material A is spare；
2) prepare the roller stick particle 6% of 10 mesh, the roller stick particle 17% of 14 mesh, 15 mesh cordierite 14%, 3% yellow paste
Smart, 5% water mixed mark is that raw material B is spare；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3) is placed in sealing container and carries out aging 14 hours；
5) step 4) is placed on pressure forming machine at 1100 DEG C of progress isothermal hydrostatic profiles through the raw material of aging processing
Reason 50min obtains green body；
6) 10 hours dry at 450 DEG C after the green body of step 5) being stood 15 hours, then fired 7 hours at 1430 DEG C.
After tested, prepared special ceramic material compression strength be 9.6MPa, corrosion depth 0.6mm.
Embodiment 3
A kind of highly corrosion resistant special ceramic material, the special ceramic material include the component of following weight: 10 purposes
Suzhou soil 12%, the calcined alumina 8% of 10 mesh, the zirconium silicate 6% of 10 mesh, the roller stick powder 12% of 10 mesh, the thin roller stick of 12 purposes
The thick roller stick particle 18% of particle 9%, 16 purposes, the cordierite 15% of 15 mesh, 10 mesh 45# mullite 10% and 3% Huang
Dextrin, 6% water.
The preparation method of above-mentioned special ceramic material includes the following steps:
1) prepare 12% Suzhou soil, 8% calcined alumina, 6% zirconium silicate, 12% roller stick powder, 10%45# not
Carrying out mixed mark after stone is ground to 10 mesh is that raw material A is spare；
2) prepare the roller stick particle 9% of 12 mesh, the roller stick particle 18% of 16 mesh, 15 mesh cordierite 15%, 3% yellow paste
Smart, 6% water mixed mark is that raw material B is spare；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3) is placed in sealing container and carries out aging 16 hours；
5) step 4) is placed on pressure forming machine at 1200 DEG C of progress isothermal hydrostatic profiles through the raw material of aging processing
Reason 50min obtains green body；
6) 10 hours dry at 500 DEG C after the green body of step 5) being stood 15 hours, then fired 7 hours at 1510 DEG C.
After tested, prepared special ceramic material compression strength be 11.2MPa, corrosion depth 0.3mm.
Embodiment 4
A kind of highly corrosion resistant special ceramic material, the special ceramic material include the component of following weight: 10 purposes
Suzhou soil 14%, the calcined alumina 10% of 10 mesh, the zirconium silicate 5% of 10 mesh, the roller stick powder 9% of 10 mesh, the thin roller stick of 11 purposes
Particle 8%, the roller stick particle 16% of 15 mesh, the cordierite 11% of 14 mesh, the 45# mullite 12% of 10 mesh and 5% yellow paste
Essence, 9% water.
The preparation method of above-mentioned special ceramic material includes the following steps:
1) prepare 14% Suzhou soil, 10% calcined alumina, 5% zirconium silicate, 9% roller stick powder, 12%45# not
Carrying out mixed mark after stone is ground to 10 mesh is that raw material A is spare；
2) prepare the cordierite 11%, 5% of the thin roller stick particle 8% of 11 purposes, the thick roller stick particle 16% of 15 purposes, 14 mesh
Yellow starch gum, 9% water mixed mark be raw material B it is spare；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3) is placed in sealing container and carries out aging 12 hours；
5) step 4) is placed on pressure forming machine at 1200 DEG C of progress isothermal hydrostatic profiles through the raw material of aging processing
Reason 30min obtains green body；
6) 15 hours dry at 300 DEG C after the green body of step 5) being stood 13 hours, then fired 7 hours at 1360 DEG C.
After tested, prepared special ceramic material compression strength be 10.4MPa, corrosion depth 0.5mm.
Comparative example 1
A kind of highly corrosion resistant special ceramic material, the special ceramic material include the component of following weight: the Soviet Union of 6 mesh
State soil 12%, the calcined alumina 8% of 6 mesh, the zirconium silicate 3% of 6 mesh, the roller stick powder 8% of 6 mesh, the thin roller stick particle of 6 purposes
10%, the thick roller stick particle 18% of 10 purposes, the cordierite 15% of 10 mesh, 6 mesh 45# mullite 8% and 3% yellow starch gum,
6% water.
The preparation method of above-mentioned special ceramic material includes the following steps:
1) prepare 12% Suzhou soil, 8% calcined alumina, 3% zirconium silicate, 8% roller stick powder, 8%45# not come
Mixed mark is that raw material A is spare after stone is ground to 6 mesh；
2) prepare the thin roller stick particle 10 of 6 purposes, the roller stick particle 18% of 10 mesh, 10 mesh cordierite 15%, 3% yellow paste
Smart, 6% water mixed mark is that raw material B is spare；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3) is placed in sealing container and carries out aging 12 hours；
5) step 4) is placed on pressure forming machine at 1000 DEG C of progress isothermal hydrostatic profiles through the raw material of aging processing
Reason 30min obtains green body；
6) 10 hours dry at 300 DEG C after the green body of step 5) being stood 12 hours, then fired 6 hours at 1360 DEG C.
After tested, prepared special ceramic material compression strength be 9.8MPa, corrosion depth 1mm.
Comparative example 2
A kind of highly corrosion resistant special ceramic material, the special ceramic material include the component of following weight: 12 purposes
Suzhou soil 12%, the calcined alumina 8% of 12 mesh, the zirconium silicate 3% of 12 mesh, the roller stick powder 8% of 12 mesh, the thin roller stick of 16 purposes
The thick roller stick particle 18% of 10%, 20 purposes of grain, the cordierite 15% of 20 mesh, the 45# mullite 8% of 12 mesh and 3% yellow paste
Essence, 6% water.
The preparation method of above-mentioned special ceramic material includes the following steps:
1) prepare 12% Suzhou soil, 8% calcined alumina, 3% zirconium silicate, 8% roller stick powder, 8%45# not come
Mixed mark is that raw material A is spare after stone is ground to 12 mesh；
2) prepare the cordierite 15%, 3% of the thin roller stick particle 10% of 16 purposes, the roller stick particle 18% of 20 mesh, 20 mesh
Yellow starch gum, 6% water mixed mark be raw material B it is spare；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3) is placed in sealing container and carries out aging 12 hours；
5) step 4) is placed on pressure forming machine at 1000 DEG C of progress isothermal hydrostatic profiles through the raw material of aging processing
Reason 30min obtains green body；
6) 10 hours dry at 300 DEG C after the green body of step 5) being stood 12 hours, then fired 6 hours at 1360 DEG C.
After tested, prepared special ceramic material compression strength be 6.4MPa, corrosion depth 1.3mm.
Comparative example 3
A kind of highly corrosion resistant special ceramic material, the special ceramic material include the component of following weight: 10 purposes
Suzhou soil 12%, the calcined alumina 8% of 10 mesh, the zirconium silicate 8% of 10 mesh, the roller stick powder 12% of 10 mesh, the thin roller stick of 12 purposes
The thick roller stick particle 18% of particle 9%, 16 purposes, the cordierite 15% of 15 mesh, 10 mesh 45# mullite 10% and 2% Huang
Dextrin, 5% water.
The preparation method of above-mentioned special ceramic material includes the following steps:
1) prepare 12% Suzhou soil, 8% calcined alumina, 8% zirconium silicate, 12% roller stick powder, 10%45# not
Carrying out mixed mark after stone is ground to 10 mesh is that raw material A is spare；
2) prepare the roller stick particle 9% of 12 mesh, the roller stick particle 18% of 16 mesh, 15 mesh cordierite 15%, 2% yellow paste
Smart, 5% water mixed mark is that raw material B is spare；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3) is placed in sealing container and carries out aging 16 hours；
5) step 4) is placed on pressure forming machine at 1200 DEG C of progress isothermal hydrostatic profiles through the raw material of aging processing
Reason 50min obtains green body；
6) 10 hours dry at 500 DEG C after the green body of step 5) being stood 15 hours, then fired 7 hours at 1510 DEG C.
After tested, prepared special ceramic material compression strength be 7.6MPa, corrosion depth 0.9mm.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of highly corrosion resistant special ceramic material, it is characterised in that: the special ceramic material includes the group of following weight
Point: zirconium silicate 3-6%, 8-10 mesh of calcined alumina 8-12%, 8-10 mesh of Suzhou soil 12-18%, the 8-10 mesh of 8-10 mesh
Thick roller stick particle 15-18%, 12-16 purpose of thin roller stick particle 5-10%, 12-16 purpose of roller stick powder 8-12%, 8-12 purpose
The water of the yellow starch gum of 45# the mullite 8-10% and 1-5% of cordierite 10-15%, 8-10 mesh, 3-9%.
2. special ceramic material as described in claim 1, it is characterised in that: the component include 12% Suzhou soil, 8%
Calcined alumina, 6% zirconium silicate, 10% roller stick powder, thin roller stick particle 10%, thick roller stick particle 18%, cordierite 15%, 45#
Mullite 10%.
3. special ceramic material as claimed in claim 1 or 2, it is characterised in that: the partial size of thick, thin club particle is respectively
14-16 mesh and 8-10 mesh, the partial size of the cordierite are 15-16 mesh.
4. a kind of preparation method of special ceramic material as described in any one of claims 1-3, it is characterised in that: the method
Include the following steps:
1) prepare that Suzhou soil, calcined alumina, zirconium silicate, roller stick powder, mixed mark is after 45# mullite is ground to required granularity
Raw material A is spare；
2) thick, thin roller stick particle, cordierite, yellow starch gum and the water mixed mark for preparing above-mentioned partial size and content are that raw material B is standby
With；
3) now raw material A is put into mixing machine and is mixed, raw material B is then added, is poured out after stirring sufficiently spare；
4) mixed raw material for obtaining step 3), which is placed in sealing container, carries out aging processing；
5) step 4) is placed in progress isothermal hydrostatic profile on pressure forming machine through the raw material of aging processing and obtains green body；
6) dry after standing the green body of step 5), then it is fired.
5. preparation method as claimed in claim 4, it is characterised in that: the time of the aging processing is 12 hours or more.
6. preparation method as claimed in claim 4, it is characterised in that: the technological parameter of the isothermal static pressure are as follows: in 1000-
1200 DEG C of processing 30-50min.
7. preparation method as claimed in claim 4, it is characterised in that: the time that the green body is stood is 12 hours or more.
8. preparation method as claimed in claim 4, it is characterised in that: the temperature of the drying is 300-500 DEG C, the time 10
Hour or more.
9. preparation method as claimed in claim 4, it is characterised in that: the temperature of the firing is 1360-1510 DEG C, and the time is
6-7 hours.
10. a kind of special ceramic material as described in any one of claims 1-3 is in anode material of lithium battery firing saggar
Application.
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Cited By (1)
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| CN113004027A (en) * | 2021-03-26 | 2021-06-22 | 福建安溪马斯特陶瓷有限公司 | Wear-resistant high-performance ceramic roller and preparation method thereof |
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| CN113004027A (en) * | 2021-03-26 | 2021-06-22 | 福建安溪马斯特陶瓷有限公司 | Wear-resistant high-performance ceramic roller and preparation method thereof |
| CN113004027B (en) * | 2021-03-26 | 2022-05-17 | 福建安溪马斯特陶瓷有限公司 | Wear-resistant high-performance ceramic roller and preparation method thereof |
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