WO2004058663A1 - セラミックス構造体の製造方法 - Google Patents
セラミックス構造体の製造方法 Download PDFInfo
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- WO2004058663A1 WO2004058663A1 PCT/JP2003/016378 JP0316378W WO2004058663A1 WO 2004058663 A1 WO2004058663 A1 WO 2004058663A1 JP 0316378 W JP0316378 W JP 0316378W WO 2004058663 A1 WO2004058663 A1 WO 2004058663A1
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Definitions
- the invention of-is for example, a component of a honeycomb structure used for a finoleta for purifying exhaust gas from a vehicle, a carrier of a catalyst, and the like.
- a ceramic having a structure la (hereinafter, referred to as a “S i roll ⁇ 5 i C structure”) 5 in which silicon carbide particles as a refractory material are bonded with metallic silicon, 5
- a non-woven structure made of cucumbers material is known (Japanese Patent Application Laid-Open No. 2002-201082).
- Si-bonded SiC structures are obtained by adding metal silicon and a binder to a silicon carbide powder raw material, mixing and kneading the resulting mixture, forming a kneaded material into a predetermined shape, and temporarily forming the obtained molded body. It is manufactured by baking to remove the binder in the compact and then baking. For example, when the final product is a honeycomb structure, the clay is formed into a honeycomb shape and fired. .
- silicon ash powder is used as a raw material, and metal silicon, methylcellulose, hydroxypropyl propylmethinoresenorelose, a surfactant, and the like are used.
- An organic binder consisting of water is added and kneaded with a kneader to obtain a plastic clay. Thereafter, the mixture is further kneaded with a clay kneading machine and formed into a kneaded clay, and further formed with an extrusion molding machine into a two-dimensional shape having a plurality of through holes.
- the honeycomb molded body is dried by blowing hot air on a microwave, and cut into predetermined dimensions.
- the opening or one of the openings of each through-hole of the dried body having the non-cam structure is sealed because the silicon carbide raw material is made into a slurry (the “sealing step”).
- This sealing position is on both sides of the dried body, Make a difference. That is, adjustment is made so that the opening of the through hole and the sealing portion are alternately arranged on each end face.
- the dried body after the plugging is placed in a firing furnace, and is calcined and fired.
- the organic binder in the compact is removed, and in the calcination, the silicon carbide particles have a Si-bonded SiC structure in which the silicon carbide particles are partially bonded to each other by metallic silicon. A porous ceramic structure is formed.
- a plurality of ceramic structures such as the obtained honeycomb structure are combined, and further ground to a predetermined shape to produce a product.
- the calcination and the subsequent calcination may be performed in the same or separate furnaces as separate steps, or may be performed in the same furnace as a continuous step.
- metallic silicon needs to be softened. Since the melting point of metallic silicon is 140 ° C., the firing temperature during firing is set to 140 ° C. or higher. The most suitable firing temperature is determined from the microstructure and characteristic values. ⁇ ⁇ 1 8 0
- the firing atmosphere is selected depending on the type of the refractory particles, such as silicon carbide and other carbide particles.
- oxidation or nitridation is a concern in at least the temperature range above the temperature at which oxidation or nitridation begins,
- a ceramics molded plate (also referred to as a "torch") made of the same ceramics material as the dried body 11 is used. Is placed on a furnace material 13, and the calcined compacts 1 and 1 are placed on the ceramic molded plate 12 and fired. U. In the figure, the honeycomb structure is not shown.
- the conventional method for producing a ceramic structure having a Si-bonded SiC structure has the following problems, particularly in the firing process.
- metal silicon evaporates from the molded body.
- An object of the present invention is to suppress breakage of a fired product after firing, and to obtain a characteristic of a sintered body accompanying evaporation of metallic silicon from the sintered body during firing.
- An object of the present invention is to provide a method for producing a ceramics structure having a Si-bonded SiC structure capable of suppressing the deterioration of properties.
- a method of manufacturing a ceramics structure includes the steps of: adding metallic silicon and an organic binder to a silicon carbide powder raw material; and mixing and kneading to form a clay. Forming the molded body and forming a green body; and temporarily firing the green body. The green body after the temporary firing is placed on a layer formed of a refractory fired powder containing metallic silicon. And baking in a state of being placed on the substrate.
- the adhesive strength between the obtained fired body and the fire-resistant fired powder can be suppressed. Even if the refractory fired powder adheres to the fired body, it can be easily removed without damage to the fired body due to the small adhesion area of the powder and weak adhesive strength. Therefore, the yield can be improved.
- the refractory fired powder is a powder of another fired body obtained from substantially the same starting material as the fired body obtained by firing. Even though.
- the refractory fired powder may be manufactured by pulverizing the fired body itself obtained by the above-described method for manufacturing a ceramics structure, or the method for manufacturing a ceramics structure A fired body obtained by another manufacturing method may be pulverized and manufactured.
- the particle size of the refractory fired powder should be 0.05 to 1 mm. It is preferable that the diameter of the powder is set within the range of the uppermost army, whereby the agglomeration of the powder and the adhesion to the fired body can be more effectively suppressed.
- the refractory fired powder has a circularity of 0.5 or more determined by single particle image analysis and represented by the following equation.
- Circularity (perimeter of a circle with the same area as the projected area of the particle) (measured perimeter of the particle).
- the degree of circularity of the powder is 0.5 or more, the powder is rounded, so that the powder is prevented from being eroded into the object to be fired.
- the thickness of the layer formed of the refractory fired powder during firing is
- the weight composition ratio of metallic silicon to the refractory fired powder is 1
- sufficient evaporation of the silicon metal from the refractory fired powder can be obtained, whereby the evaporation of the silicon metal from the object to be fired can be suppressed.
- precipitation of metallic silicon on the surface of the fired body can also be suppressed, and deterioration and discoloration of the characteristics of the fired body can be suppressed.
- FIG. 1 is a schematic cross-sectional view of the inside of a firing furnace showing firing conditions in a conventional method for manufacturing a ceramic structure.
- FIG. 2 shows one embodiment of the present invention.
- FIG. 3 is a schematic perspective view of the inside of a firing furnace showing firing conditions in a method for manufacturing a ceph-mixture structure as a shape.
- FIG. 3 is a schematic sectional view of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- a method for manufacturing a ceramic structure includes a step of adding metallic silicon and an organic binder to a silicon carbide powder raw material, mixing and kneading the mixture, to form a clay. And a step of calcining the obtained molded body to remove the organic binder in the molded body, and firing the molded body after the preliminary firing.
- the main characteristic is that the calcined compact is placed on a layer of refractory calcined powder containing metallic silicon and calcined. I do.
- the metal group silicon melts during firing to form the surface of the silicon carbide particles and plays a role of bonding the particles together. Make up the structure. Therefore, according to the manufacturing method of the present embodiment, it is possible to manufacture a porous ceramic and a V-tus structure having a Si-bonded SiC structure.
- silicon carbide Since silicon carbide has high heat resistance, it is suitably applied to, for example, a DPF (Diesenorepatite filter) which is often exposed to heat during the heat treatment of the accumulated particulates.
- the average particle size of the silicon carbide powder raw material in the ceramic structure may be, for example, a flat honeycomb structure when the ceramic structure finally obtained by the present manufacturing method is a honeycomb structure. O 2 to 4 times the average pore diameter o
- the appropriate amount of metallic silicon to be added to the ceramic structure is although it varies depending on the particle size and particle shape of the silicon carbide powder raw material, for example, it is in the range of 5 to 50% by weight based on the total amount of the silicon carbide powder raw material and the metal silicon.
- the average particle size of the metallic silicon is, for example, 50% or less of the average particle size of the silicon carbide powder raw material.
- Silicon carbide particles are used as an aggregate, and a clay containing a mixture of metallic silicon and a pore-forming agent as required is smoothly extruded into a non-cam shape.
- the above organic binder is added to the total amount of the silicon carbide powder raw material and metallic silicon, for example,
- organic piner to be used is not particularly limited, but specific examples are: And vinyl alcohol, and the like.
- a pore-forming agent may be added during the preparation of the clay for the purpose of increasing the porosity.
- the addition amount of the pore-forming agent is, for example, 30% by weight or less based on the total amount of the silicon carbide powder raw material and the metal silicon.
- the type of pore-forming agent used is not particularly limited, but specifically, graphite, foamed resin, foamed foamed resin, flour, starch, phenolic resin, polymethyl methacrylate , Polyethylene, polyethylene terephthalate, polyethylene terephthalate, and the like.
- the pore-forming agent may be used alone or in combination of two or more depending on the purpose. ⁇
- the kneaded material is formed into a desired honeycomb shape by an extrusion method or the like.
- the obtained molded body is calcined to remove (degrease) the organic binder in the molded body, and then calcined.
- the calcination is performed at a temperature lower than the temperature at which metallic silicon melts. Specifically, the temperature may be maintained at a predetermined temperature of about 150 to 700 ° C. and may be maintained.In the predetermined temperature range, the heating rate may be reduced to 50 ° C./hr or less and calcined.
- the calcining atmosphere may be an oxidizing atmosphere (atmosphere). However, if the molded body contains a large amount of organic pyridine, it may burn during the calcination and rapidly increase the temperature of the molded body. Therefore, it is performed in an inert atmosphere such as N 2 or Ar.
- the calcination and the subsequent calcination may be performed as separate steps in the same or separate furnace, or may be performed as a continuous step in the same furnace.
- firing it is necessary to soften metallic silicon in order to obtain a structure in which the silicon carbide particles are bonded by metallic silicon. Since the melting point of metal silicon is 140 ° C., the calcination is performed at 140 ° C. to 180 ° C. in an inert atmosphere such as Ar other than .N 2 .
- the most suitable firing temperature is determined by the microstructure and characteristic values.
- FIG. 2 and FIG. 3 are schematic diagrams showing the state of the firing furnace ⁇ of the present embodiment.
- a layer of refractory fired powder 4 is formed on a furnace material 3, and a calcined shaped body (a fired object) 1 cut into an appropriate size is placed on this layer. ing. They are also covered by pods 5.
- Firing performs the furnace atmosphere in this state in the inert atmosphere of A r other than the N 2.
- a calcined firing and is, in the case of continuous processes in the same furnace, were gas replacement to an inert atmosphere of A r other than the N 2 from the atmosphere during calcination after calcination Later, firing is performed.
- the refractory fired powder is obtained by adding metallic silicon and an organic binder to the refractory particle raw material, mixing and kneading the mixture, and obtaining a kneaded material.
- a refractory particles raw material the oxide A 1 2 0 3, Z r 0 2, Y 2 0 3, S i 3 N 4 in S i C, nitride in carbides system, A 1 N, etc.
- Particles such as mullite can be used.
- the powder 4 has a small bonding area.
- the fired body can be easily removed without damaging the fired body.
- the metal evaporates from the compact 1 and the refractory calcined powder 4.
- the amount of evaporation is smaller than that of the refractory calcined powder 4 having a larger surface area than the compact 1. And the amount of evaporation from the compact 1 can be suppressed as a result.
- the refractory fired powder 4 adhered to the fired body can be easily wiped off, and damage to the fired product after firing can be suppressed as much as possible. Therefore, the yield can be improved. it can.
- the amount of evaporated metallic silicon from the molded body 1 is suppressed, a decrease in the thermal conductivity and strength of the sintered product and discoloration are suppressed. The quality and appearance of the ceramic structure can be prevented from deteriorating.
- the refractory fired powder 4 can be formed from a pulverized product of another fired body obtained from substantially the same starting material as the fired body obtained by firing (the fired product of the molded body 1). That is, under these conditions
- the refractory calcined powder 4 to be produced is produced using SiC as a refractory particle material.
- the refractory calcined powder 4 can be produced not only by pulverizing the calcined body itself (the calcined product of the molded body 1) obtained by the method for producing a ceramic structure, but also by preparing the ceramic mixture. It can also be manufactured by pulverizing a fired body obtained by a manufacturing method different from the manufacturing method of the structure (the same process or a different process as the present manufacturing method). As described above, since the refractory fired powder 4 is manufactured using substantially the same starting material as the fired product of the molded body 1, there is an advantage that a wide range of manufacturing methods can be used.
- the particle size of the refractory fired powder 4 is 0.051 mm.
- the particle size of the refractory fired powder 4 is 0.051 mm.
- the powders When the particle size is less than 0.05 mm, the powders not only tend to agglomerate with each other, but also easily adhere to the fired body. There is a risk that the fired body will be broken when the powder is removed./ If the particle size exceeds 1 mm, the powder is more likely to bite into the compact 1 so that the powder 4 that is in contact with the fired body is removed. during Shi overlooked, because fear of breaking the fired body O 0
- the refractory calcined powder 4 has a circularity obtained by the flow-type particle image prayer shown by the following equation of 0.5 or more.
- Circularity (perimeter of a circle with the same area as the projected area of the particle) Z (measured perimeter of the particle)
- the powder 4 when the degree of circularity is less than 0.5, the powder 4 has a sharp outer shape, so that the powder 4 is more likely to bite into the molded body 1, and thus, when the powder adhered to the fired body is peeled off, There is a risk that the fired body may be damaged.
- the thickness T (see FIG. 3) of the layer made of the refractory fired powder 4 during firing is at least 1 mm.
- the individual particles of the refractory fired powder 4 can move freely, so that the powder can freely follow the shrinkage of the compact 1 during firing, and Since the effect of alleviating the difference in thermal expansion with the molded body 1 is increased, it is possible to prevent cracks from occurring in the fired body.
- the weight composition ratio of metallic silicon in the refractory fired powder 4 is 10 to 30%.
- a sufficient amount of silicon metal can be evaporated from the refractory calcined powder during sintering, whereby the evaporation of silicon metal from the compact can be suppressed.
- precipitation of metallic silicon on the surface of the fired body can be suppressed, and further, discoloration of the fired body can be suppressed.
- the weight composition ratio of metallic silicon in the refractory calcined powder 4 is less than 10%, the amount of metallic silicon evaporated from the powder is insufficient, and the amount of metallic silicon evaporated from the compact 1 increases. However, the thermal conductivity and strength of the fired product are reduced and discoloration is caused. Also, the weight composition ratio If it exceeds 30%, the tendency of the powder to adhere to the compact 1 increases, and the adhesive strength to the calcined body also increases.Therefore, when the powder adhered to the calcined body is removed, the There is a risk of damaging the body.
- the Si powder was blended at a ratio of 8: 2, and 100 parts by weight of the powder, 6 parts by weight of methylcellulose, 2.5 parts by weight of a surfactant, and 24 parts by weight of water were added, and the mixture was uniformly mixed.
- the mixture was mixed and mixed to prepare a forming clay.
- This clay was extruded using an extruder and had an outer shape of 45 mm, a length of 120 mm, a partition wall of 120 mm, a partition wall thickness of 0.43 mm, and a cell density of 100 cells / square inch (1 It was formed into a honeycomb shape of 6 cells / cm 2 ).
- the obtained compact was used as a body to be calcined, and calcination and calcination were performed under the following conditions.
- the calcination was performed in an air atmosphere at 400 ° C. for 5 hours, and the calcination was performed in an Ar atmosphere at 145 ° C. for 2 hours.
- the refractory fired powder used in the firing step is prepared by blending a SiC raw material powder and a metal Si powder with a predetermined composition under the same manufacturing conditions as the ceramic structure described above.
- the obtained sintered body was pulverized.
- the circularity of the refractory fired powder used was 0.5 to 1.00, and the metal Si weight composition ratio was 10%. Depending on the particle size, this refractory calcined powder is less than 0.01 mm (Reference Example 1), To 0.05 mm (Reference Example 2), 0.05 to 0.10 mm (Example 1), 0.10 to 1.0 mm (Example 2), 1.0 to 2 0.0 mm (Reference Example 3) and over 2.0 O mm (Reference Example 4) ', and each particle size group was adjusted so that the layer thickness would be 1.0 mm on the furnace material. It was laid to form a support layer. Thereafter, the object to be fired was placed on the support layer and calcined and fired continuously under the same conditions to produce a ceramics structure having a Si-bonded SiC structure.
- the thickness exceeds 1 mm, the powder is liable to bite into the fired body, and it is difficult to remove the powder from the fired body due to-.
- the refractory calcined powder is preferably composed of a powder having a particle size in the range of 0.051 mm.
- the particle size of the refractory fired powder used was 0.05 0 1.0 O mm, and the metal Si weight composition ratio was 10%.
- the refractory calcined powder was converted into less than 0.3 (Reference Example 5), 0.30.5 (Reference Example 6) and 0.5 1.00 (Reference Example 3) depending on its circularity. Classified.
- a support layer was formed by laying each circularity group on the furnace material so as to have a layer thickness of 1.0 mm. Thereafter, the object to be fired was placed on the support layer, and calcined and fired continuously under the same conditions to produce a ceramics structure having a Si-bonded SiC structure.
- the refractory fired powder preferably has a circularity of 0.5 or more.
- the sintered body of Reference Examples 5 and 6 and the refractory fired powder were compared with the conventional example in which the molded body was placed on a ceramics molded plate and fired.
- the refractory fired powder used had a circularity of 0.5 to 1.00, a particle size of 0.05 to 1.0 mm, and a metal Si weight composition ratio of 10%.
- the layer thickness laid on the furnace material using this refractory fired powder is 0.5 mm (Reference Example 7), 0.8 mm (Reference Example 8), 1.0 mm (Example 4), 2.0 mm (Example 5)
- the support layer was formed as follows. Thereafter, the object to be fired was placed on each support layer and calcined and fired continuously under the same conditions to produce a ceramic structure having a Si-bonded SiC structure.
- the refractory fired powder preferably has a support layer thickness of 1 mm or more during firing.
- the sintered compacts of Reference Examples 7 and 8 were compared with the conventional examples in which the compact was placed on a ceramics molded plate and fired. The size of the project was decreasing.
- the refractory calcined powder used had a circularity of 0.5 to 1.00 and a particle size of 0.050 to 1.00 Omm.
- the refractory calcined powder was prepared in an amount of 0% (Reference Example 9), 5% (Reference Example 10) ', 10% (Example 6), 30% (Example 7), 40% (Reference Example 11) and 60% (Reference Example 12).
- Each weight composition ratio group was laid on the furnace material so as to have a layer thickness of 1.0 mm to form a support layer. Thereafter, the object to be fired was placed on the support layer, and calcination and firing were continuously performed under the same conditions to produce a ceramics structure.
- the materials other than the metal Si were used so that no reaction occurred during firing.
- the refractory fired powder is preferably composed of a powder having a weight composition ratio of metallic silicon in the range of 10 to 30%.
- the sintered body of the sintered body obtained in Reference Example 10 was The degree of discoloration was small, and the size of breakage of the sintered bodies obtained in Reference Examples 11 and 12 was small.
- it is easy to remove the refractory fired powder adhered to the fired body, and to minimize damage to the fired product after firing. Can do As a result, the yield can be improved.
- the refractory fired powder can be produced not only by crushing the fired body itself obtained by the method for manufacturing a ceramics structure, but also by manufacturing the ceramics structure. Can be manufactured by pulverizing a fired body obtained by another manufacturing method.
- the particle size of the refractory fired powder is set to 0.05 to 1 mm, aggregation of the refractory fired powder and adhesion to the fired body can be suppressed as much as possible.
- the powder adhered to the body can be easily removed without damaging the fired body, effectively reducing the quality and appearance of the ceramic structure as a final product. Can be prevented
- the circularity of the refractory fired powder is set to 0.5 or more, the outer shape of the refractory fired powder has a rounded shape, and the bite of the sintered body can be suppressed. Even when the powder adheres to the body, the adhesive strength is small and the fired body is damaged.
- the thickness of the layer formed of the refractory fired powder is 1 mm or more, the individual particles of the refractory fired powder can move freely. The powder can freely follow the shrinkage in the middle. Therefore, the effect of reducing the difference in thermal expansion between the powder and the object to be fired can be further enhanced, and cracks in the fired object can be effectively prevented. The quality and appearance of the ceramic structure as a final product can be effectively prevented from deteriorating.
- the weight composition ratio of the metallic silicon in the refractory fired powder is 10 to 30%, the adhesion between the refractory fired powder and the sintered body is suppressed while the refractory fired powder is being fired. Since sufficient evaporation of metallic silicon from water can be obtained, evaporation of metallic silicon from the object to be fired can be suppressed, and deterioration of the quality and appearance of the ceramic structure as a final product can be effectively prevented.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60328712T DE60328712D1 (de) | 2002-12-26 | 2003-12-19 | Verfahren zur herstellung einer keramikstruktur |
EP03780951A EP1577279B1 (en) | 2002-12-26 | 2003-12-19 | Method for producing ceramic structure |
US10/539,589 US20060145402A1 (en) | 2002-12-26 | 2003-12-19 | Method for producing ceramic structure |
AU2003289462A AU2003289462A1 (en) | 2002-12-26 | 2003-12-19 | Method for producing ceramic structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002376960A JP4441173B2 (ja) | 2002-12-26 | 2002-12-26 | セラミックス構造体の製造方法 |
JP2002-376960 | 2002-12-26 |
Publications (1)
Publication Number | Publication Date |
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WO2004058663A1 true WO2004058663A1 (ja) | 2004-07-15 |
Family
ID=32677382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/016378 WO2004058663A1 (ja) | 2002-12-26 | 2003-12-19 | セラミックス構造体の製造方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060145402A1 (ja) |
EP (1) | EP1577279B1 (ja) |
JP (1) | JP4441173B2 (ja) |
KR (1) | KR20050093800A (ja) |
AU (1) | AU2003289462A1 (ja) |
DE (1) | DE60328712D1 (ja) |
PL (1) | PL206188B1 (ja) |
WO (1) | WO2004058663A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1798209A4 (en) * | 2004-09-24 | 2010-09-15 | Ngk Insulators Ltd | PROCESS FOR THE PRODUCTION OF CORDIERITE HONEYCOMB STRUCTURE |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004263888A (ja) * | 2003-02-17 | 2004-09-24 | Mitsui Mining & Smelting Co Ltd | 焼成用セッター |
JPWO2007015550A1 (ja) * | 2005-08-03 | 2009-02-19 | イビデン株式会社 | 炭化珪素質焼成用治具及び多孔質炭化珪素体の製造方法 |
ATE551167T1 (de) * | 2006-02-28 | 2012-04-15 | Ibiden Co Ltd | Verfahren zur herstellung von einem wabenstrukturkörper |
JP5208647B2 (ja) * | 2008-09-29 | 2013-06-12 | 日立粉末冶金株式会社 | 焼結バルブガイドの製造方法 |
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JPS59232969A (ja) * | 1983-06-17 | 1984-12-27 | 日立化成工業株式会社 | SiC焼結体の製造方法 |
JP2001220240A (ja) * | 1999-12-01 | 2001-08-14 | Ibiden Co Ltd | 炭化珪素成形体の焼成方法 |
JP2002201082A (ja) * | 2000-04-14 | 2002-07-16 | Ngk Insulators Ltd | ハニカム構造体及びその製造方法 |
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US3935959A (en) * | 1975-01-31 | 1976-02-03 | Long Mfg. N. C., Inc. | Container for bulk tobacco |
CA1181650A (en) * | 1983-03-09 | 1985-01-29 | Decloet Ltd | Tobacco bin |
US5205970A (en) * | 1992-04-03 | 1993-04-27 | General Electric Company | Method of infiltration forming a silicon carbide body with improved surface finish |
FR2741063B1 (fr) * | 1995-11-14 | 1998-02-13 | Europ Propulsion | Procede pour l'introduction dans des substrats poreux d'une composition en fusion a base de silicium |
JPH10310474A (ja) * | 1997-05-08 | 1998-11-24 | Tokai Konetsu Kogyo Co Ltd | SiC−Si複合セラミックス材 |
US6555173B1 (en) * | 2000-11-08 | 2003-04-29 | Honeywell International Inc. | Carbon barrier controlled metal infiltration layer for enhanced oxidation protection |
JP3489030B1 (ja) * | 2002-04-26 | 2004-01-19 | 勉 福田 | チタン酸アルミニウム系焼結体の製造方法 |
USRE42352E1 (en) * | 2002-11-01 | 2011-05-10 | Ohcera Co., Ltd. | Method for producing aluminum magnesium titanate sintered product |
JP2004292197A (ja) * | 2003-03-26 | 2004-10-21 | Ngk Insulators Ltd | ハニカム構造体の製造方法 |
DE10317885C5 (de) * | 2003-04-17 | 2015-04-02 | Umicore Ag & Co. Kg | Verfahren und Vorrichtung zum Beschichten eines Tragkörpers |
US20040238794A1 (en) * | 2003-05-30 | 2004-12-02 | Karandikar Prashant G. | Microwave processing of composite bodies made by an infiltration route |
EP1503161A3 (en) * | 2003-08-01 | 2006-08-09 | Asahi Glass Company Ltd. | Firing container for silicon nitride ceramics |
CN100402127C (zh) * | 2003-08-22 | 2008-07-16 | 王世来股份有限公司 | 排气净化蜂窝状过滤器及其制造方法 |
FR2869609B1 (fr) * | 2004-05-03 | 2006-07-28 | Snecma Propulsion Solide Sa | Procede de fabrication d'une piece en materiau composite thermostructural |
US7335331B1 (en) * | 2005-03-01 | 2008-02-26 | Husnay Dana M | Method for making ceramic plates |
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2002
- 2002-12-26 JP JP2002376960A patent/JP4441173B2/ja not_active Expired - Lifetime
-
2003
- 2003-12-19 US US10/539,589 patent/US20060145402A1/en not_active Abandoned
- 2003-12-19 DE DE60328712T patent/DE60328712D1/de not_active Expired - Lifetime
- 2003-12-19 AU AU2003289462A patent/AU2003289462A1/en not_active Abandoned
- 2003-12-19 KR KR1020057011873A patent/KR20050093800A/ko not_active Application Discontinuation
- 2003-12-19 PL PL376016A patent/PL206188B1/pl unknown
- 2003-12-19 WO PCT/JP2003/016378 patent/WO2004058663A1/ja active Application Filing
- 2003-12-19 EP EP03780951A patent/EP1577279B1/en not_active Expired - Lifetime
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JPS59232969A (ja) * | 1983-06-17 | 1984-12-27 | 日立化成工業株式会社 | SiC焼結体の製造方法 |
JP2001220240A (ja) * | 1999-12-01 | 2001-08-14 | Ibiden Co Ltd | 炭化珪素成形体の焼成方法 |
JP2002201082A (ja) * | 2000-04-14 | 2002-07-16 | Ngk Insulators Ltd | ハニカム構造体及びその製造方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1798209A4 (en) * | 2004-09-24 | 2010-09-15 | Ngk Insulators Ltd | PROCESS FOR THE PRODUCTION OF CORDIERITE HONEYCOMB STRUCTURE |
US8591800B2 (en) | 2004-09-24 | 2013-11-26 | Ngk Insulators, Ltd. | Method for producing cordierite-based honeycomb structure |
Also Published As
Publication number | Publication date |
---|---|
EP1577279A4 (en) | 2008-04-09 |
EP1577279B1 (en) | 2009-08-05 |
AU2003289462A1 (en) | 2004-07-22 |
JP2004203704A (ja) | 2004-07-22 |
US20060145402A1 (en) | 2006-07-06 |
EP1577279A1 (en) | 2005-09-21 |
JP4441173B2 (ja) | 2010-03-31 |
PL206188B1 (pl) | 2010-07-30 |
KR20050093800A (ko) | 2005-09-23 |
PL376016A1 (en) | 2005-12-12 |
DE60328712D1 (de) | 2009-09-17 |
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