CN107721448A - A kind of preparation method of the mullite porous ceramic rich in whisker structure - Google Patents

A kind of preparation method of the mullite porous ceramic rich in whisker structure Download PDF

Info

Publication number
CN107721448A
CN107721448A CN201711036117.5A CN201711036117A CN107721448A CN 107721448 A CN107721448 A CN 107721448A CN 201711036117 A CN201711036117 A CN 201711036117A CN 107721448 A CN107721448 A CN 107721448A
Authority
CN
China
Prior art keywords
preparation
porous ceramic
base substrate
whisker structure
powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711036117.5A
Other languages
Chinese (zh)
Inventor
袁波
王刚
董宾宾
韩建燊
陈阔
张琪
李红霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinosteel Luoyang Institute of Refractories Research Co Ltd
Original Assignee
Sinosteel Luoyang Institute of Refractories Research Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinosteel Luoyang Institute of Refractories Research Co Ltd filed Critical Sinosteel Luoyang Institute of Refractories Research Co Ltd
Priority to CN201711036117.5A priority Critical patent/CN107721448A/en
Publication of CN107721448A publication Critical patent/CN107721448A/en
Pending legal-status Critical Current

Links

Classifications

    • C04B35/803—
    • 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
    • C04B35/185—Mullite 3Al2O3-2SiO2
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • 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
    • 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
    • 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
    • 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
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • 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
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
    • C04B2235/445—Fluoride containing anions, e.g. fluosilicate
    • 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
    • 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
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/447—Phosphates or phosphites, e.g. orthophosphate, hypophosphite
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/786—Micrometer sized grains, i.e. from 1 to 100 micron
    • 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
    • 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

Abstract

The invention belongs to the preparation field of porous ceramic film material, and in particular to a kind of preparation method of the mullite porous ceramic rich in whisker structure.Its preparation process can be realized as follows：Ball milling mixing is carried out as initiation material dispensing using deionized water, dispersant, ceramic powder, mineralizer, monomer, crosslinking agent, obtains the slurry of stably dispersing；Foaming agent is added in the stable slurry of gained, mechanical agitation obtains foamed slurry, and initiator and catalyst are then sequentially added into foamed slurry, and is cast in gel solidification in mould and is molded；Base substrate after the demoulding is dried, obtains foam base substrate；Dried foam base substrate is placed in aluminum oxide saggar, and is placed in air atmosphere stove is sintered together, obtains the mullite porous ceramic rich in whisker structure.The present invention physically well develops with whisker structure, and draw ratio is big, and the strength of materials is high, and thermal conductivity is low, the characteristics of good thermal shock.

Description

A kind of preparation method of the mullite porous ceramic rich in whisker structure
Technical field
The invention belongs to the preparation field of porous ceramic film material, and in particular to a kind of mullite rich in whisker structure The preparation method of ceramics.
Background technology
Porous ceramic film material has the advantages that low-density, lower thermal conductivity, high-specific surface area, high transmittance, high temperature insulating, The fields such as catalyst carrier, filtrating smoke dust all have wide practical use;Mullite ceramic material has lower thermal conductivity and low-heat The coefficient of expansion, applied in thermal-energy equipment field;Mullite porous ceramic material has the two advantage concurrently, is that high temperature kiln is heat-insulated One of important candidate material of furnace lining.
The conventional preparation method of mullite porous ceramic mainly has following several at present：Granulation mass area method, addition pore creating material Method, foaming etc.；Wherein, granulation mass area method is the preparation that loose structure is realized in the space formed using particle packing, addition Pore creating material method is to add pore creating material in dispensing, and loose structure is ultimately formed by being ablated off pore creating material in sintering process.This The porous ceramic film material porosity prepared by two methods is relatively low, and thermal conductivity is higher, it is impossible to plays good heat-blocking action；Foaming Method is to add surfactant in ceramic slurry to make slurry foam, and so as to introduce stomata inside ceramics, forms loose structure； The mullite porous ceramic porosity prepared by this method is high, and thermal conductivity is low, but asks there is also low intensity, thermal shock resistance are poor etc. Topic.
The content of the invention
In order to solve the above technical problems, the purpose of the present invention is to propose to a kind of mullite porous ceramic rich in whisker structure Preparation method.
The present invention adopts the following technical scheme that to complete above-mentioned purpose：
A kind of preparation method of the mullite porous ceramic rich in whisker structure, described preparation method include foam base substrate Prepare the sintering with base substrate；Its concrete technology step is：
1）The preparation of foam base substrate：
Using deionized water, dispersant, ceramic powder, mineralizer, monomer, crosslinking agent as initiation material dispensing, and carry out ball milling and mix Close, obtain the slurry of stably dispersing；Described ceramic powder includes the powder as silicon source and the powder as silicon source；The work The 70~74% of ceramic powder quality is accounted for for the addition of the powder of silicon source；The addition of the powder as silicon source accounts for ceramics The 26~30% of powder quality；The addition of the deionized water is 0.5~1 times of ceramic powder quality；The dispersant adds Enter 0.5~0.8% that amount is ceramic powder quality；The addition of the mineralizer is the 5~10% of ceramic powder quality；The list The addition of body is the 5~15% of ceramic powder quality；The addition of the crosslinking agent is the 0.5~1.5% of ceramic powder quality； Foaming agent is added in the stable slurry of gained, mechanical agitation obtains foamed slurry, then sequentially adds and draws into foamed slurry Agent and catalyst are sent out, and Quick pouring gel solidification in mould is molded；Base substrate after the demoulding is dried, obtains foam base Body；
2）The sintering of base substrate：
Dried foam base substrate is placed in aluminum oxide saggar, and is placed in air atmosphere stove is sintered together, obtains richness Mullite porous ceramic containing whisker structure.
The powder as silicon source is α-Al2O3Micro mist, γ-Al2O3One kind in micro mist, described α-Al2O3Micro mist Purity>99%, average grain diameter is 3~6 μm；Described γ-Al2O3The purity of micro mist>99%, average grain diameter is 1~3 μm.
The powder as silicon source is fused quartz powder, one kind in Cab-O-sil, the purity of described fused quartz powder> 99%, average grain diameter is 5~10 μm；The purity of described Cab-O-sil>99%, average grain diameter is 5~10 μm.
Described mineralizer is one kind in aluminum fluoride, sodium fluoride.
Described monomer is one kind in acrylamide, Methacrylamide.
Described crosslinking agent is methylene-bisacrylamide.
Described dispersant is one kind in sodium tripolyphosphate, Hexamethylphosphoric acid triamide, polyacrylamide.
Described foaming agent is one kind in dodecyl sulphate amine, dodecyltriethanolamine sulfate, and addition is pottery The 4~8% of porcelain powder quality.
Described initiator is ammonium persulfate, and addition is the 0.8~4% of ceramic powder quality；Described catalyst is N, N, N ', N '-tetramethylethylenediamine, addition is the 0.05~0.2% of ceramic powder quality；
Described ball milling mixing, ball milling speed are 30~100r/min, and Ball-milling Time is 1~8h；Described mechanical agitation speed For 80~200r/min, mixing time is 0.5~1.5h.
Described base substrate after the demoulding is dried, and is first to be protected in climatic chamber under 60 DEG C and 70% relative humidity Hold 10~14h, then 100 DEG C of insulation 5h in air dry oven；Described sintering process refer to 1300~1600 DEG C be incubated 2~ 5h。
The preparation method of a kind of mullite porous ceramic rich in whisker structure proposed by the present invention, first with foaming Attached gel casting prepares the porous ceramics base substrate comprising silicon source and silicon source, and inside has substantial amounts of pore structure, to burn Mullite vapor phase growth during knot provides the space of abundance；The mullite rich in whisker structure prepared using this method Porous ceramic structure is uniform, and whisker structure physically well develops, and draw ratio is big, and the strength of materials is high, and thermal conductivity is low, good thermal shock.
Brief description of the drawings
Fig. 1 show the fracture apperance photo of the mullite porous ceramic rich in whisker structure prepared by embodiment 1.
Embodiment
The present invention is illustrated with reference to following embodiments and accompanying drawing：
Embodiment 1：
Deionized water 100g, polyacrylamide 0.6g are weighed, average grain diameter is 6 μm of α-Al2O3Micro mist 72g, average grain diameter are 10 μm of Cab-O-sil 28g, sodium fluoride 10g, acrylamide 10g, methylene-bisacrylamide 1.0g, it is situated between by ball milling of alumina balls Matter, with 50r/min rotating speed mixing 5h.Dodecyltriethanolamine sulfate 8g is added in gained slurry, is existed with mixer Mechanical agitation 0.5h under 200r/min rotating speeds, add ammonium persulfate 1.5g, N, N, N ', N '-tetramethylethylenediamine 0.1g, by it It is poured into mould, stands curing and demolding.Base substrate after the demoulding is first protected in climatic chamber under 60 DEG C and 70% relative humidity Hold 14h, then 100 DEG C of insulation 5h in air dry oven.Dried base substrate is placed in aluminum oxide saggar and burnt together in high temperature In freezing of a furnace 2h is incubated in 1600 DEG C.The porosity of prepared mullite porous ceramic is 85%, compressive resistance 16MPa, its fracture Pattern photo is as shown in Figure 1.
Embodiment 2：
Deionized water 75g, Hexamethylphosphoric acid triamide 0.5g are weighed, average grain diameter is 3 μm of γ-Al2O3Micro mist 74g, average grain diameter 5 μm fused quartz powder 26g, aluminum fluoride 10g, Methacrylamide 15g, methylene-bisacrylamide 1.5g, using alumina balls as Ball-milling medium, with 80r/min rotating speed mixing 4h.Dodecyl sulphate amine 4g is added in gained slurry, is existed with mixer Mechanical agitation 1h under 160r/min rotating speeds, add ammonium persulfate 1g, N, N, N ', N '-tetramethylethylenediamine 0.1g, poured into a mould Into mould, curing and demolding is stood.Base substrate after the demoulding is first kept in climatic chamber under 60 DEG C and 70% relative humidity 10h, then 100 DEG C of insulation 5h in air dry oven.Dried base substrate is placed in aluminum oxide saggar together in high temperature sintering In stove 4h is incubated in 1400 DEG C.The porosity of prepared mullite porous ceramic is 72%, compressive resistance 20MPa.
Embodiment 3：
Deionized water 100g, polyacrylamide 0.7g are weighed, average grain diameter is 1 μm of γ-Al2O3Micro mist 70g, average grain diameter are 10 μm of Cab-O-sil 30g, sodium fluoride 5g, acrylamide 15g, methylene-bisacrylamide 1.5g, it is situated between by ball milling of alumina balls Matter, with 50r/min rotating speed mixing 6h.Dodecyltriethanolamine sulfate 6g is added in gained slurry, is existed with mixer Mechanical agitation 1h under 120r/min rotating speeds, add ammonium persulfate 2g, N, N, N ', N '-tetramethylethylenediamine 0.1g, poured into a mould Into mould, curing and demolding is stood.Base substrate after the demoulding is first kept in climatic chamber under 60 DEG C and 70% relative humidity 12h, then 100 DEG C of insulation 5h in air dry oven.Dried base substrate is placed in aluminum oxide saggar together in high temperature sintering In stove 2h is incubated in 1600 DEG C.The porosity of prepared mullite porous ceramic is 81%, compressive resistance 17MPa.
Embodiment 4：
Deionized water 75g, sodium tripolyphosphate 0.8g are weighed, average grain diameter is 6 μm of α-Al2O3Micro mist 74g, average grain diameter are 5 μ M Cab-O-sil 26g, aluminum fluoride 5g, Methacrylamide 10g, methylene-bisacrylamide 1.0g, it is situated between by ball milling of alumina balls Matter, with 100r/min rotating speed mixing 1h.Dodecyl sulphate amine 8g is added in gained slurry, with mixer in 200r/min Mechanical agitation 0.5h under rotating speed, add ammonium persulfate 4g, N, N, N ', N '-tetramethylethylenediamine 0.05g, it is poured into mould In tool, curing and demolding is stood.Base substrate after the demoulding first keeps 14h in climatic chamber under 60 DEG C and 70% relative humidity, then 100 DEG C of insulation 5h in air dry oven.By dried base substrate be placed in aluminum oxide saggar together in high temperature sintering furnace in 1500 DEG C of insulation 3h.The porosity of prepared mullite porous ceramic is 82%, compressive resistance 17MPa.
Embodiment 5：
Deionized water 50g, Hexamethylphosphoric acid triamide 0.6g are weighed, average grain diameter is 3 μm of α-Al2O3Micro mist 70g, average grain diameter 10 μm fused quartz powder 30g, sodium fluoride 10g, acrylamide 5g, methylene-bisacrylamide 0.5g, using alumina balls as ball milling Medium, with 30r/min rotating speed mixing 8h.Dodecyltriethanolamine sulfate 4g is added in gained slurry, is existed with mixer Mechanical agitation 1.5h under 80r/min rotating speeds, add ammonium persulfate 0.8g, N, N, N ', N '-tetramethylethylenediamine 0.2g, by it It is poured into mould, stands curing and demolding.Base substrate after the demoulding is first protected in climatic chamber under 60 DEG C and 70% relative humidity Hold 10h, then 100 DEG C of insulation 5h in air dry oven.Dried base substrate is placed in aluminum oxide saggar and burnt together in high temperature In freezing of a furnace 5h is incubated in 1300 DEG C.The porosity of prepared mullite porous ceramic is 74%, compressive resistance 20MPa.

Claims (10)

  1. A kind of 1. preparation method of the mullite porous ceramic rich in whisker structure, it is characterised in that：Described preparation method bag Include the preparation of foam base substrate and the sintering of base substrate；Its concrete technology step is：
    1）The preparation of foam base substrate：
    Using deionized water, dispersant, ceramic powder, mineralizer, monomer, crosslinking agent as initiation material dispensing, and carry out ball milling and mix Close, obtain the slurry of stably dispersing；Described ceramic powder includes the powder as silicon source and the powder as silicon source；The work The 70~74% of ceramic powder quality is accounted for for the addition of the powder of silicon source；The addition of the powder as silicon source accounts for ceramics The 26~30% of powder quality；The addition of the deionized water is 0.5~1 times of ceramic powder quality；The dispersant adds Enter 0.5~0.8% that amount is ceramic powder quality；The addition of the mineralizer is the 5~10% of ceramic powder quality；The list The addition of body is the 5~15% of ceramic powder quality；The addition of the crosslinking agent is the 0.5~1.5% of ceramic powder quality； Foaming agent is added in the stable slurry of gained, mechanical agitation obtains foamed slurry, then sequentially adds and draws into foamed slurry Agent and catalyst are sent out, and Quick pouring gel solidification in mould is molded；Base substrate after the demoulding is dried, obtains foam base Body；
    2）The sintering of base substrate：
    Dried foam base substrate is placed in aluminum oxide saggar, and is placed in air atmosphere stove is sintered together, obtains richness Mullite porous ceramic containing whisker structure.
  2. A kind of 2. preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, it is characterised in that： The powder as silicon source is α-Al2O3Micro mist, γ-Al2O3One kind in micro mist, described α-Al2O3The purity of micro mist> 99%, average grain diameter is 3~6 μm；Described γ-Al2O3The purity of micro mist>99%, average grain diameter is 1~3 μm.
  3. A kind of 3. preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, it is characterised in that： The powder as silicon source is fused quartz powder, one kind in Cab-O-sil, the purity of described fused quartz powder>99%, it is average Particle diameter is 5~10 μm；The purity of described Cab-O-sil>99%, average grain diameter is 5~10 μm.
  4. A kind of 4. preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, it is characterised in that： Described mineralizer is one kind in aluminum fluoride, sodium fluoride.
  5. A kind of 5. preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, it is characterised in that： Described monomer is one kind in acrylamide, Methacrylamide.
  6. A kind of 6. preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, it is characterised in that： Described crosslinking agent is methylene-bisacrylamide；Described dispersant is sodium tripolyphosphate, Hexamethylphosphoric acid triamide, polyacrylamide In one kind.
  7. A kind of 7. preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, it is characterised in that： Described foaming agent is one kind in dodecyl sulphate amine, dodecyltriethanolamine sulfate, and addition is ceramic powder constitution The 4~8% of amount.
  8. A kind of 8. preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, it is characterised in that： Described initiator is ammonium persulfate, and addition is the 0.8~4% of ceramic powder quality；Described catalyst is N, N, N ', N '- Tetramethylethylenediamine, addition are the 0.05~0.2% of ceramic powder quality.
  9. A kind of 9. preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, it is characterised in that： Described ball milling mixing, ball milling speed are 30~100r/min, and Ball-milling Time is 1~8h；Described mechanical agitation speed is 80 ~200r/min, mixing time are 0.5~1.5h.
  10. 10. a kind of preparation method of the mullite porous ceramic rich in whisker structure as claimed in claim 1, its feature exist In：Described base substrate after the demoulding is dried, be first in climatic chamber holding 10 under 60 DEG C and 70% relative humidity~ 14h, then 100 DEG C of insulation 5h in air dry oven；Described sintering process refers to be incubated 2~5h at 1300~1600 DEG C.
CN201711036117.5A 2017-10-30 2017-10-30 A kind of preparation method of the mullite porous ceramic rich in whisker structure Pending CN107721448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711036117.5A CN107721448A (en) 2017-10-30 2017-10-30 A kind of preparation method of the mullite porous ceramic rich in whisker structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711036117.5A CN107721448A (en) 2017-10-30 2017-10-30 A kind of preparation method of the mullite porous ceramic rich in whisker structure

Publications (1)

Publication Number Publication Date
CN107721448A true CN107721448A (en) 2018-02-23

Family

ID=61202838

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711036117.5A Pending CN107721448A (en) 2017-10-30 2017-10-30 A kind of preparation method of the mullite porous ceramic rich in whisker structure

Country Status (1)

Country Link
CN (1) CN107721448A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108975948A (en) * 2018-08-27 2018-12-11 芜湖市元奎新材料科技有限公司 A kind of preparation method of foam mullite porous ceramic
CN110590349A (en) * 2019-10-15 2019-12-20 北京中环鑫汇科技有限公司 Low-heat-conduction high-temperature furnace lining material and preparation method thereof
CN111056834A (en) * 2019-12-17 2020-04-24 洛阳索莱特材料科技有限公司 Preparation method of spinel-mullite ceramic sagger
CN111533571A (en) * 2020-05-26 2020-08-14 长安大学 High-toughness mullite ceramic with whisker frame and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008007342A (en) * 2006-06-27 2008-01-17 Toshiba Corp Anisotropic porous ceramic material and method of manufacturing the same
CN103058708A (en) * 2013-01-07 2013-04-24 中钢集团洛阳耐火材料研究院有限公司 Preparation method of low-thermal-conductivity silicon-nitride-bonded silicon carbide porous ceramic
CN104129979A (en) * 2014-07-28 2014-11-05 北京交通大学 Calcium feldspar porous ceramics with controllable structure and adjustable performance and preparation method thereof
CN105198478A (en) * 2015-10-09 2015-12-30 李翠伟 Mullite-whisker-reinforced anorthite porous ceramic and preparation method thereof
CN105780126A (en) * 2016-02-03 2016-07-20 西安航空学院 Preparation method of porous mullite formed by overlapping in-situ generated whiskers
CN106007763A (en) * 2016-05-27 2016-10-12 海南中航特玻科技有限公司 Method for preparing mullite honeycomb ceramic carrier with all crystal whisker structure
CN106747541A (en) * 2016-12-05 2017-05-31 中南大学 A kind of method of the mullite ceramic of On In-situ Synthesis of Mullite Whisker self toughening

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008007342A (en) * 2006-06-27 2008-01-17 Toshiba Corp Anisotropic porous ceramic material and method of manufacturing the same
CN103058708A (en) * 2013-01-07 2013-04-24 中钢集团洛阳耐火材料研究院有限公司 Preparation method of low-thermal-conductivity silicon-nitride-bonded silicon carbide porous ceramic
CN104129979A (en) * 2014-07-28 2014-11-05 北京交通大学 Calcium feldspar porous ceramics with controllable structure and adjustable performance and preparation method thereof
CN105198478A (en) * 2015-10-09 2015-12-30 李翠伟 Mullite-whisker-reinforced anorthite porous ceramic and preparation method thereof
CN105780126A (en) * 2016-02-03 2016-07-20 西安航空学院 Preparation method of porous mullite formed by overlapping in-situ generated whiskers
CN106007763A (en) * 2016-05-27 2016-10-12 海南中航特玻科技有限公司 Method for preparing mullite honeycomb ceramic carrier with all crystal whisker structure
CN106747541A (en) * 2016-12-05 2017-05-31 中南大学 A kind of method of the mullite ceramic of On In-situ Synthesis of Mullite Whisker self toughening

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108975948A (en) * 2018-08-27 2018-12-11 芜湖市元奎新材料科技有限公司 A kind of preparation method of foam mullite porous ceramic
CN110590349A (en) * 2019-10-15 2019-12-20 北京中环鑫汇科技有限公司 Low-heat-conduction high-temperature furnace lining material and preparation method thereof
CN111056834A (en) * 2019-12-17 2020-04-24 洛阳索莱特材料科技有限公司 Preparation method of spinel-mullite ceramic sagger
CN111056834B (en) * 2019-12-17 2022-02-18 洛阳索莱特材料科技有限公司 Preparation method of spinel-mullite ceramic sagger
CN111533571A (en) * 2020-05-26 2020-08-14 长安大学 High-toughness mullite ceramic with whisker frame and preparation method thereof

Similar Documents

Publication Publication Date Title
CN107721448A (en) A kind of preparation method of the mullite porous ceramic rich in whisker structure
CN103011884B (en) Preparation method of corundum/mullite light-weight heat insulating material
CN105924225B (en) A kind of preparation method of mullite bonded carborundum porous ceramics
CN105753507B (en) A kind of preparation method of silicon carbide-calcium hexaluminate complex phase porous ceramics
CN108863394A (en) A kind of method that gel pouring combination freeze-drying prepares porous ceramics
CN105481355B (en) A kind of aluminum oxide closed cell foamed ceramics of Zirconium oxide fibre enhancing and preparation method thereof
CN105541311B (en) The preparation method of polycrystalline silicon ingot casting silicon nitride bonded silicon fused silica crucible
CN103030413B (en) Method for preparing corundum mullite crucible
CN104446625A (en) High-porosity porous ceramic and preparation method thereof
CN109437959B (en) Method for preparing mullite fiber-based porous ceramic by using environment-friendly gel casting
CN106316369A (en) Dumping and sintering process for 3D printing ceramic body
CN103011883A (en) Preparation method of superhigh-temperature light-weight zirconium oxide heat-insulating material
CN103755363A (en) Lightweight siliceous mullite composite brick and preparation method thereof
CN107010973B (en) Light complex-phase porous heat-insulating refractory material, mullite refractory material and preparation method thereof
CN109503197B (en) Preparation method of calcium hexaluminate porous ceramic
CN110818398A (en) Sagger for high-temperature firing and preparation method thereof
CN108085785A (en) A kind of preparation method of silicon nitride fiber material
CN105084878A (en) Preparation method of acicular mullite porous ceramic block material with superhigh amount of porosity
CN110294636A (en) A kind of lightweight heat-proof metallurgy of nickel waste residue foamed ceramics and preparation method thereof
CN106588026A (en) Method of forming dense or multihole AlN ceramic through injection mould based on agarose gel
CN104860712B (en) A kind of method for preparing light porous heat-insulated aggregate using discarded fused silica crucible
CN106518115A (en) Refractory material and preparation method thereof
CN108947568A (en) A method of alumina bubble brick is prepared using pore creating material
CN108395240A (en) The preparation method of lanthanum orthophosphate, lanthanum orthophosphate porous ceramics and its preparation method and application
CN108455975A (en) A kind of anti-strong base alumina bubble brick and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180223