CN111116185A - Composite phase honeycomb ceramic and method for controlling expansion coefficient of ceramic - Google Patents
Composite phase honeycomb ceramic and method for controlling expansion coefficient of ceramic Download PDFInfo
- Publication number
- CN111116185A CN111116185A CN201911311950.5A CN201911311950A CN111116185A CN 111116185 A CN111116185 A CN 111116185A CN 201911311950 A CN201911311950 A CN 201911311950A CN 111116185 A CN111116185 A CN 111116185A
- Authority
- CN
- China
- Prior art keywords
- parts
- honeycomb ceramic
- sintering
- raw materials
- composite phase
- 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
Links
Images
Classifications
-
- 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
-
- 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
- C04B35/19—Alkali metal aluminosilicates, e.g. spodumene
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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
- C04B38/0006—Honeycomb structures
-
- 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
- C04B2235/442—Carbonates
-
- 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
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention belongs to the field of new material ceramics, and particularly relates to composite phase honeycomb ceramics and a method for controlling the expansion coefficient of the ceramics. The method mainly comprises the following steps: weighing the corresponding mass of Al2O3、SiO2And Li2CO3The raw materials are uniformly mixed; adding a bonding additive into the mixed raw materials, uniformly mixing, and extruding the honeycomb ceramic; the temperature of the extruded sample in a calcining furnace is 600-650 ℃, and the heat preservation time is 4-10 hours; and putting the sample after the glue is discharged into a sintering furnace for synthetic sintering at the temperature of 1350 ℃ and 1450 ℃ for 4-8 hours. The coefficient of thermal expansion was measured after sintering.
Description
Technical Field
The invention belongs to the field of new material ceramics, and particularly relates to composite phase honeycomb ceramics and a method for controlling the expansion coefficient of the ceramics.
Background
The honeycomb ceramic is a porous, industrial ceramic material such as honeycomb, and has a plurality of honeycomb-shaped parallel passages penetrating through front and rear cross sectionsSince the open area of the tip is 75% or more, the honeycomb ceramic has a large specific surface area (for example, a wall thickness of 0.17mm and a cell density of 62 cells/cm) as compared with a ceramic material having a general shape2The geometric specific surface area of the honeycomb ceramic can reach 27.4cm2/cm3) Light weight and good heat insulation performance. In addition, the fluid passes through the honeycomb-shaped parallel cells, so that heat exchange and chemical reaction are performed using the partition walls thereof.
The honeycomb ceramic is applied to an automobile exhaust purification system and used as a catalyst carrier, and the catalyst carrier is required to have good overall performance due to the complex operating condition of an engine. The exhaust temperature range of an automobile engine is generally between 250 ℃ and 950 ℃, the requirements of rapid cooling and rapid heating on the thermal shock resistance of the honeycomb ceramic are provided, the thermal expansion coefficient of the honeycomb ceramic is directly related to the thermal shock resistance, and the smaller the thermal expansion coefficient, the better the thermal shock resistance.
The material systems for producing the honeycomb ceramics at present mainly comprise cordierite ceramics, mullite ceramics, silicon carbide ceramics and the like. The honeycomb ceramic made of mullite has the advantages of high heat-resistant temperature and low back pressure. But the thermal expansion coefficient of the mullite honeycomb ceramic is 5.6 multiplied by 10-6The temperature is lower than 600 ℃ due to the fact that the temperature is lower than the temperature per DEG C, and the application and the development of mullite as honeycomb ceramics are greatly hindered.
Disclosure of Invention
In view of the above, the present invention is directed to overcoming the disadvantages of the prior art and providing a composite phase honeycomb ceramic and a method for controlling the same.
The invention aims to solve the technical problems in the background technology, and adopts the technical scheme that the composite phase honeycomb ceramic has a general formula shown in a formula (I):
(3Al2O3.2SiO2)-xLiAlSiO4(I)
in the formula (I), x is 0-1.
The thermal expansion coefficient of the composite phase honeycomb ceramic is continuously adjustable.
The second technical scheme of the invention is to provide a method for controlling the composite-phase honeycomb ceramic, which comprises the following steps:
a. weighing the corresponding mass of Al according to the value of x determined by formula (I)2O3、SiO2And Li2CO3The raw materials are uniformly mixed;
b. the binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a bonding additive into the mixed raw materials, uniformly mixing, and extruding the honeycomb ceramic;
d. the temperature of the extruded sample in a calcining furnace is 600-650 ℃, and the heat preservation time is 4-10 hours;
e. and putting the sample after the glue is discharged into a sintering furnace for synthetic sintering at the temperature of 1350 ℃ and 1450 ℃ for 4-8 hours. The coefficient of thermal expansion was measured after sintering.
The adhesive additive at least comprises more than two of ethylene glycol, methylcellulose, glycerol or PVA solution.
The raw material Al of the invention2O3Selecting 62-69.5 parts; SiO 22Selecting 28.9-31 parts; li2CO31.6-7 parts of the raw materials.
The coefficient of thermal expansion was measured after sintering.
Advantageous effects
1. The method adjusts the thermal expansion coefficient of the generated eucryptite crystals with different contents relative to the mullite honeycomb ceramic. The honeycomb ceramic has a coefficient of thermal expansion of 0.15X 10 when the eucryptite content is 45 mol%-6/℃。
2. The thermal shock resistance temperature of the honeycomb ceramic increased to 650 ℃ when the eucryptite content was 45 mol%.
Drawings
FIG. 1 is a graph of the trend of the coefficient of thermal expansion of honeycomb ceramics as a function of eucryptite content.
Detailed Description
The invention is further described below with reference to the following figures and specific examples.
Example 1:
a. 69.5 parts of Al are weighed2O328.9 parts of SiO2And 1.6 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. And adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic.
d. The extruded sample is placed in a calcining furnace for degumming at the temperature of 600 ℃ and the heat preservation time of 4 hours.
e. And putting the sample with the discharged glue into a sintering furnace for synthetic sintering at 1350 ℃ for 4 hours. The coefficient of thermal expansion after sintering is 3.55X 10-6/℃。
Example 2:
a. 67 parts of Al were weighed2O330 parts of SiO2And 3 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic
d. The extruded sample is placed in a calcining furnace for degumming at the temperature of 600 ℃ and the heat preservation time of 4 hours.
e. And putting the sample with the discharged glue into a sintering furnace for synthetic sintering at 1350 ℃ for 4 hours. The coefficient of thermal expansion after sintering is 2.23X 10-6/℃。
Example 3:
a. 65 parts of Al are weighed2O330 parts of SiO2And 5 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic
d. The extruded sample is placed in a calcining furnace for degumming at the temperature of 600 ℃ and the heat preservation time of 4 hours.
e. Putting the sample with the glue discharged intoAnd (3) performing synthetic sintering in a sintering furnace at 1350 ℃ for 4 hours. The coefficient of thermal expansion after sintering is 1.17X 10-6/℃。
Example 4:
a. 63.5 parts of Al are weighed2O331 parts of SiO2And 5.5 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic
d. The extruded sample is placed in a calcining furnace for degumming at the temperature of 600 ℃ and the heat preservation time of 4 hours.
e. And putting the sample with the discharged glue into a sintering furnace for synthetic sintering at 1350 ℃ for 4 hours. The coefficient of thermal expansion after sintering was 0.34X 10-6/℃。
Example 5:
a. 62 parts of Al were weighed2O331 parts of SiO2And 7 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic
d. The extruded sample is placed in a calcining furnace for degumming at the temperature of 600 ℃ and the heat preservation time of 4 hours.
e. And putting the sample with the discharged glue into a sintering furnace for synthetic sintering at 1350 ℃ for 4 hours. The coefficient of thermal expansion after sintering is-0.22X 10-6/℃。
The bonding additives in the above embodiments may be replaced with ethylene glycol, methyl cellulose, glycerin.
Example 6
a. 63.5 parts of Al are weighed2O331 parts of SiO2And 5.5 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic
d. The extruded sample was placed in a calciner at a binder removal temperature of 620 ℃ for a holding time of 6 hours.
e. And putting the sample with the discharged glue into a sintering furnace for synthetic sintering at 1350 ℃ for 4 hours. The coefficient of thermal expansion after sintering is 0.32X 10-6/℃。
Example 7
a. 63.5 parts of Al are weighed2O331 parts of SiO2And 5.5 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic
d. The extruded sample was placed in a calciner at a binder removal temperature of 650 ℃ for a holding time of 10 hours.
e. And putting the sample with the discharged glue into a sintering furnace for synthetic sintering at 1350 ℃ for 4 hours. The coefficient of thermal expansion after sintering is 0.37 multiplied by 10-6/℃。
Example 8
a. 63.5 parts of Al are weighed2O331 parts of SiO2And 5.5 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic
d. The extruded sample is placed in a calcining furnace for degumming at the temperature of 600 ℃ and the heat preservation time of 4 hours.
e. Putting the sample with the discharged glue into sinteringAnd (3) performing synthetic sintering in a furnace at 1400 ℃ for 6 hours. The coefficient of thermal expansion after sintering is 0.35X 10-6/℃。
Example 9
a. 63.5 parts of Al are weighed2O331 parts of SiO2And 5.5 parts of Li2CO3And (4) uniformly mixing.
b. The binder was prepared from 10 parts of PVA, 10 parts of ethylene glycol, 5 parts of methylcellulose, 5 parts of glycerol and 100 parts of deionized water.
c. Adding a binder into the mixed raw materials, wherein the mass ratio of the raw materials to the binder is 1:1, uniformly mixing, and extruding the honeycomb ceramic
d. The extruded sample is placed in a calcining furnace for degumming at the temperature of 600 ℃ and the heat preservation time of 4 hours.
e. And putting the sample with the discharged glue into a sintering furnace for synthetic sintering at 1450 ℃ for 8 hours. The coefficient of thermal expansion after sintering is 0.42 multiplied by 10-6/℃。
Claims (6)
1. A composite phase honeycomb ceramic having the general formula shown in formula (I):
(3Al2O3.2SiO2)-xLiAlSiO4(I)
in the formula (I), x is 0-1.
2. The composite phase honeycomb ceramic of claim 1, wherein the composite phase honeycomb ceramic has a continuously adjustable coefficient of thermal expansion.
3. A method of controlling the expansion coefficient of the composite phase honeycomb ceramic according to claim 1 or 2, comprising the steps of:
a. weighing the corresponding mass of Al according to the value of x determined by formula (I)2O3、SiO2And Li2CO3The raw materials are uniformly mixed;
b. adding a bonding additive into the mixed raw materials, uniformly mixing, and extruding the honeycomb ceramic;
c. the temperature of the extruded sample in a calcining furnace is 600-650 ℃, and the heat preservation time is 4-10 hours;
d. and putting the sample after the glue is discharged into a sintering furnace for synthetic sintering at the temperature of 1350 ℃ and 1450 ℃ for 4-8 hours.
4. The method of controlling the expansion coefficient of a composite phase honeycomb ceramic according to claim 3, wherein the bonding additive is composed of at least two or more of ethylene glycol, methylcellulose, glycerol or PVA solution.
5. The method for controlling the expansion coefficient of composite-phase honeycomb ceramic according to claim 3, wherein the raw material Al2O3Selecting 62-69.5 parts; SiO 22Selecting 28.9-31 parts; li2CO31.6-7 parts of the raw materials.
6. The method for controlling the expansion coefficient of a composite phase honeycomb ceramic according to claim 3, wherein the expansion coefficient is measured after sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311950.5A CN111116185A (en) | 2019-12-18 | 2019-12-18 | Composite phase honeycomb ceramic and method for controlling expansion coefficient of ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311950.5A CN111116185A (en) | 2019-12-18 | 2019-12-18 | Composite phase honeycomb ceramic and method for controlling expansion coefficient of ceramic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111116185A true CN111116185A (en) | 2020-05-08 |
Family
ID=70499871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911311950.5A Pending CN111116185A (en) | 2019-12-18 | 2019-12-18 | Composite phase honeycomb ceramic and method for controlling expansion coefficient of ceramic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111116185A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6677261B1 (en) * | 2002-07-31 | 2004-01-13 | Corning Incorporated | Alumina-bound high strength ceramic honeycombs |
| CN101475396A (en) * | 2008-05-30 | 2009-07-08 | 北京盛康宁科技开发有限公司 | Low expansion heat resisting porous ceramic and preparation thereof |
| CN104803666A (en) * | 2015-04-16 | 2015-07-29 | 南京理工大学 | LiAlSiO4 microspheres with negative thermal expansion coefficient and preparation method of LiAlSiO4 microspheres |
| CN107903051A (en) * | 2017-12-05 | 2018-04-13 | 河南工程学院 | A kind of near-zero thermal expansion coefficient forsterite eucryptite composite ceramic material |
-
2019
- 2019-12-18 CN CN201911311950.5A patent/CN111116185A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6677261B1 (en) * | 2002-07-31 | 2004-01-13 | Corning Incorporated | Alumina-bound high strength ceramic honeycombs |
| CN101475396A (en) * | 2008-05-30 | 2009-07-08 | 北京盛康宁科技开发有限公司 | Low expansion heat resisting porous ceramic and preparation thereof |
| CN104803666A (en) * | 2015-04-16 | 2015-07-29 | 南京理工大学 | LiAlSiO4 microspheres with negative thermal expansion coefficient and preparation method of LiAlSiO4 microspheres |
| CN107903051A (en) * | 2017-12-05 | 2018-04-13 | 河南工程学院 | A kind of near-zero thermal expansion coefficient forsterite eucryptite composite ceramic material |
Non-Patent Citations (2)
| Title |
|---|
| 曲远方: "《现代陶瓷材料及技术》", 31 May 2008, 华东理工大学出版社 * |
| 韩淑贤: "《锂霞石—莫来石材料的合成及其性能》", 《河北陶瓷》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7208108B2 (en) | Method for producing porous ceramic article | |
| JP5144075B2 (en) | Honeycomb structure and manufacturing method thereof | |
| US20080241444A1 (en) | Honeycomb structure and manufacturing method therefor | |
| JP2604876B2 (en) | Method for manufacturing ceramic honeycomb structure | |
| US7011803B2 (en) | Honeycomb structure and method for its manufacture | |
| EP0037868B1 (en) | Method of producing low-expansion ceramic materials | |
| US4001028A (en) | Method of preparing crack-free monolithic polycrystalline cordierite substrates | |
| US7473464B2 (en) | Porous material and method for production thereof | |
| CN1980721A (en) | Low thermal expansion articles | |
| JPH0669534B2 (en) | Cordierite honeycomb structure | |
| JP4222600B2 (en) | Method for firing ceramic honeycomb structure | |
| JPH0585856A (en) | Method for burning ceramics honeycomb structure | |
| JP4750343B2 (en) | Method for manufacturing porous honeycomb structure, and honeycomb formed body | |
| PL208758B1 (en) | Honeycomb structure | |
| JP4001800B2 (en) | Method for manufacturing honeycomb catalyst carrier | |
| KR20140028705A (en) | Method for producing ceramic honeycomb structure | |
| CN114524675A (en) | Silicon-bonded silicon carbide diesel particulate filter and preparation method thereof | |
| JP2014087743A (en) | Honeycomb filter | |
| AU2007284302B2 (en) | An extruded porous substrate having inorganic bonds | |
| JP4455786B2 (en) | Method for producing porous material and method for producing hollow granules used therefor | |
| CN111116185A (en) | Composite phase honeycomb ceramic and method for controlling expansion coefficient of ceramic | |
| KR101234445B1 (en) | Ceramic filter composition for purifying exhaust gas and manufacturing method of ceramic honeycomb filter | |
| JP4302973B2 (en) | Honeycomb structure, catalyst body using the same, catalyst-carrying filter, and manufacturing method thereof | |
| JP2002160976A (en) | Method for manufacturing ceramic honeycomb structure | |
| JP2023017750A (en) | Ceramic honeycomb structure for methanation reaction catalyst carrier and method for manufacturing the same |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200508 |