JP6892122B2 - 粉末粒子及びこれを用いたグリーン体の製造方法 - Google Patents
粉末粒子及びこれを用いたグリーン体の製造方法 Download PDFInfo
- Publication number
- JP6892122B2 JP6892122B2 JP2017555179A JP2017555179A JP6892122B2 JP 6892122 B2 JP6892122 B2 JP 6892122B2 JP 2017555179 A JP2017555179 A JP 2017555179A JP 2017555179 A JP2017555179 A JP 2017555179A JP 6892122 B2 JP6892122 B2 JP 6892122B2
- Authority
- JP
- Japan
- Prior art keywords
- particles
- mother
- surface charge
- particle
- child
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
- C04B35/62655—Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62802—Powder coating materials
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62802—Powder coating materials
- C04B35/62805—Oxide ceramics
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62802—Powder coating materials
- C04B35/62805—Oxide ceramics
- C04B35/62813—Alumina or aluminates
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62844—Coating fibres
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62844—Coating fibres
- C04B35/62881—Coating fibres with metal salts, e.g. phosphates
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62892—Coating the powders or the macroscopic reinforcing agents with a coating layer consisting of particles
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63424—Polyacrylates; Polymethacrylates
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63432—Polystyrenes
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63444—Nitrogen-containing polymers, e.g. polyacrylamides, polyacrylonitriles, polyvinylpyrrolidone [PVP], polyethylenimine [PEI]
-
- 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
- C04B35/64—Burning or sintering processes
- C04B35/645—Pressure sintering
-
- 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
- C04B35/653—Processes involving a melting step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F2003/145—Both compacting and sintering simultaneously by warm compacting, below debindering temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/604—Pressing at temperatures other than sintering temperatures
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/61—Mechanical properties, e.g. fracture toughness, hardness, Young's modulus or strength
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62897—Coatings characterised by their thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Composite Materials (AREA)
- Civil Engineering (AREA)
- Nanotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Powder Metallurgy (AREA)
Description
母粒子として平均粒径3μmのアルミナ粒子(AA−3、住友化学社製)、添加粒子として平均粒径0.4μmの非架橋アクリル粒子(MP2701、綜研化学社製)を用いた複合粒子を作製した。具体的には、ポリアニオン(高分子電解質;アニオン性高分子)であるポリスチレンスルホン酸ナトリウム(PSS)を溶解させた水溶液を、pH7.0に調整した後、アルミナ粒子を分散させ、10分間攪拌することでアルミナ表面にPSSを吸着させた。その後、アルミナ粒子を沈殿させ、上澄み液を除去した後に脱イオン水にて洗浄し、未吸着のPSSを取り除いた。次いで、得られたPSS被覆アルミナ粒子を、ポリカチオン(高分子電解質;カチオン性高分子)であるポリジアチルジメチルアンモニウムクロリド(PDDA)を溶解した水溶液中に投入し10分間攪拌することでアルミナ粒子の最表面にPDDAを吸着させた。その後、上記と同様、洗浄、分別操作によってPDDA被覆アルミナ粒子を回収した。PSSおよびPDDAを被覆する操作は複数回繰り返して行い、PSSと、PDDAを交互に積層させ、最外層をPSSとすることで表面電荷を負とした。
母粒子として平均粒径3μmのアルミナ粒子(AA−3、住友化学社製)、子粒子して平均粒径0.1μmのアルミナ粒子(大明化学社製、タイミクロンTM−DAR)、添加粒子として平均粒径0.4μmの非架橋アクリル粒子(MP2701、綜研化学社製)とを用いた複合粒子を作製した。
平均粒径3μmのアルミナ粒子(AA−3、住友化学社製)の重量に対し、市販のバインダー(ポリビニルアルコール系、セレナWF−804、中京油脂株式会社製)が3wt%となる配合比で、アルミナ粒子とバインダーとをそれぞれ蒸留水に混合して懸濁液を作製した。その後、作製した懸濁液を、凍結乾燥機(EYELA社製、FDU−1200)により混凍結乾燥させて粉末粒子を得た。比較例1で用いたバインダーは液状であり、これにより、得られた粉末粒子は、アルミナ粒子がバインダーでコーティングされたものとなっている。
各実施例1、2および比較例1で得られた粉末粒子を用いたグリーン体について、インデンテーション法を用いて硬度を測定することで、強度の比較を行った。インデンテーション試験は、ビッカース硬度計(AVK−A、明石製作所製)を用い、最大圧入荷重1.5Nとし、最大荷重で形成した圧痕寸法から算出されるビッカース硬度を算出した。
母粒子の表面に樹脂粒子を担持させて複合化した粉末粒子を使用し、これによりグリーン体を形成したときの強度ムラについて実験を行った。その結果を以下に説明する。
(複合粒子による試料の作製)
実施例1と同様の方法により、樹脂粒子の添加量が異なる二種類の試料を作成した。母粒子としては平均粒径3μmのアルミナ粒子(AA−3、住友化学社製)を、添加粒子としては平均粒径0.4μmの非架橋アクリル粒子(MP2701、綜研化学社製)を用いて、母粒子に対する添加粒子の割合を1W%および3W%として、それぞれ複合粒子を作製した。
平均粒径3μmのアルミナ粒子(AA−3、住友化学社製)に、市販のバインダー(ポリビニルアルコール系、セレナWF−804、中京油脂株式会社製)を添加して二種類の比較試料を作製した。具体的には、アルミナ粒子の重量に対しバインダーが1W%および3wt%となる配合比で、アルミナ粒子とバインダーとをそれぞれ蒸留水に混合して二種類の懸濁液を作製した。その後、作製した二種類の懸濁液を、凍結乾燥機(EYELA社製、FDU−1200)により混凍結乾燥させて二種類の粉末粒子を得た。比較試料の作製に用いたバインダーは液状であり、これにより、得られた粉末粒子は、アルミナ粒子がバインダーでコーティングされたものとなっている。
四つの各試料(複合粒子による試料二種類および比較試料二種類)で得られた粉末粒子を用いたグリーン体について、インデンテーション法を用いて圧入荷重と圧入深さとの関係を各三点で測定した。具体的には、自作の圧入荷重と圧入深さを測定できる計装型インデンテーション装置を用いて、最大圧入荷重1.5Nとし、ビッカース圧子を用いた圧入荷重と圧入深さを測定した。これを異なる三点について行った。各測定結果をプロットし、グラフ化したものを図8および図9に示す。図は横軸が圧入深さ(検査針の圧入深度(μm))であり、縦軸が圧入荷重(荷重(N)の平方根)としている。なお、図8は、母粒子に対する樹脂粒子またはバインダーの割合を1W%としたものに関するグラフであり、図8(a)が複合粒子による試料、図8(b)が比較試料の結果である。また、図9は、母粒子に対する樹脂粒子またはバインダーの割合を3W%としたものに関するグラフであり、図9(a)が複合粒子による試料、図9(b)が比較試料の結果である。
2 樹脂粒子(熱可塑性樹脂粒子)
3 高分子電解質
4 子粒子
10,20 複合粒子(複合粒子、粉末粒子)
S2 子粒子複合化工程(前複合化工程)
S3 樹脂粒子複合化工程(複合化工程)
S5 成形工程(グリーン体成形工程の一部)
S7 熱処理工程(グリーン体成形工程の一部)
S10 母粒子電荷調整工程(第1表面電荷調整工程)
S20 樹脂粒子電荷調整工程(第2表面電荷調整工程)
S30 子粒子電荷調整工程(子粒子表面電荷調整工程)
Claims (13)
- 最表面に水系の液体中で電離して正に帯電するカチオン性高分子電解質または負に帯電するアニオン性高分子電解質のいずれかが積層されて表面電荷が調整された焼結体の主たる成分となる母粒子と、その母粒子よりも粒径が小さく、且つ、最表面に水系の液体中で電離して正に帯電するカチオン性高分子電解質または負に帯電するアニオン性高分子電解質のいずれかが積層されて表面電荷が調整され、前記母粒子の表面上に担持された熱可塑性樹脂粒子とを備えた粉末粒子であって、前記熱可塑性樹脂粒子は前記母粒子の表面上に点在すると共に、前記母粒子に対し体積比で2%以上5%以下の範囲にあることを特徴とする粉末粒子。
- 最表面に水系の液体中で電離して正に帯電するカチオン性高分子電解質または負に帯電するアニオン性高分子電解質のいずれかが積層されて表面電荷が調整された焼結体の主たる成分となる母粒子と、その母粒子よりも粒径が小さく、且つ、最表面に水系の液体中で電離して正に帯電するカチオン性高分子電解質または負に帯電するアニオン性高分子電解質のいずれかが積層されて表面電荷が調整され、前記母粒子の表面上に担持された熱可塑性樹脂粒子とを備えた粉末粒子であって、前記熱可塑性樹脂粒子は前記母粒子に対し予め定めた体積比の範囲で前記母粒子の表面上に点在し、前記母粒子に担持される前記熱可塑性樹脂粒子は、該母粒子の個々の表面上に4個以上120個以下であることを特徴とする粉末粒子。
- 前記母粒子に比べて焼結性に優れ、または焼結助剤として機能し、前記母粒子よりも粒径の小さな子粒子が前記母粒子の表面に付着しているものであることを特徴とする請求項1または2に記載の粉末粒子。
- 前記子粒子の平均粒径は150nm以下であることを特徴とする請求項3記載の粉末粒子。
- 前記母粒子の平均粒径は500nm以上5μm以下であることを特徴とする請求項3または4に記載の粉末粒子。
- 前記母粒子の表面は、該母粒子の表面全体に対して40%以上100%以下の被覆率によって前記子粒子により被覆されていることを特徴とする請求項3から5のいずれかに記載の粉末粒子。
- 前記熱可塑性樹脂粒子は、その一部または全部が、前記母粒子の表面に付着する前記子粒子を介して前記母粒子上に担持されると共に、前記母粒子の表面上に点在する態様に配置されていることを特徴とする請求項3から6のいずれかに記載の粉末粒子。
- 前記母粒子、前記子粒子、前記熱可塑性樹脂粒子は、それぞれその表面に水系の液体中で電離して正に帯電するカチオン性高分子電解質または負に帯電するアニオン性高分子電解質のいずれかである高分子電解質を有しており、その高分子電解質を介して他の粒子と接するものであることを特徴とする請求項3から7のいずれかに記載の粉末粒子。
- 前記各粒子が具有する前記高分子電解質の厚みは20nm以下であることを特徴とする請求項8記載の粉末粒子。
- 請求項1から9のいずれかに記載の粉末粒子を用いて、グリーン体を造形すると共に当該グリーン体に含まれる熱可塑性樹脂粒子が溶融する温度以上で加熱した後冷却してグリーン体を成形するグリーン体成形工程を備えたことを特徴とするグリーン体の製造方法。
- 焼結体の主たる成分となる母粒子の表面電荷を液体中において調整する第1表面電荷調整工程と、
前記母粒子に比べて焼結性に優れ、または焼結助剤として機能し、前記母粒子よりも粒径の小さな子粒子を、前記第1表面電荷調整工程で処理された前記母粒子が有する表面電荷と反対極性となるように、液体中で当該子粒子の表面電荷を調整する子粒子表面電荷調整工程と、
その子粒子表面電荷調整工程にて処理を行った前記子粒子と、前記第1表面電荷調整工程で処理された前記母粒子とを液体中で混合して静電引力によって複合化して母粒子と子粒子との複合粒子を作製する前複合化工程と、
前記第1表面電荷調整工程で処理された前記母粒子に、当該母粒子よりも小さな粒径の熱可塑性樹脂粒子を静電引力の作用で付着させるため、前記前複合化工程で作製される複合粒子の表面電荷と反対極性となるように、液体中で前記熱可塑性樹脂粒子の表面電荷を調整する第2表面電荷調整工程と、
前記前複合化工程によって作製された母粒子と子粒子との複合粒子と、前記第2表面電荷調整工程にて処理を行った前記熱可塑性樹脂粒子とを、液体中で混合し静電引力によって更に複合化する複合化工程と、
その複合化工程によって得られた複合粒子を用いてグリーン体を造形すると共に当該グリーン体に含まれる熱可塑性樹脂粒子が溶融する温度以上で加熱した後冷却してグリーン体を成形するグリーン体成形工程とを備えたことを特徴とするグリーン体の製造方法。 - 焼結体の主たる成分となる母粒子の表面電荷を液体中において調整する第1表面電荷調整工程と、
前記母粒子に比べて焼結性に優れ、または焼結助剤として機能し、前記母粒子よりも粒径の小さな子粒子を、前記第1表面電荷調整工程で処理された前記母粒子が有する表面電荷と反対極性となるように、液体中で当該子粒子の表面電荷を調整する子粒子表面電荷調整工程と、
その子粒子表面電荷調整工程にて処理を行った前記子粒子と、前記第1表面電荷調整工程で処理された前記母粒子とを液体中で混合して静電引力によって複合化して母粒子と子粒子との複合粒子を作製する前複合化工程と、
前記前複合化工程により作製された母粒子と子粒子との複合粒子について、該複合粒子の表面電荷を更に調整する表面電荷再調整工程と、
前記第1表面電荷調整工程で処理された前記母粒子に、当該母粒子よりも小さな粒径の熱可塑性樹脂粒子を静電引力の作用で付着させるため、前記表面電荷再調整工程で調整された複合粒子の表面電荷と反対極性となるように、液体中で前記熱可塑性樹脂粒子の表面電荷を調整する第2表面電荷調整工程と、
前記表面電荷再調整工程によって処理された複合粒子と、前記第2表面電荷調整工程にて処理を行った前記熱可塑性樹脂粒子とを、液体中で混合し静電引力によって更に複合化する複合化工程と、
その複合化工程によって得られた複合粒子を用いてグリーン体を造形すると共に当該グリーン体に含まれる熱可塑性樹脂粒子が溶融する温度以上で加熱した後冷却してグリーン体を成形するグリーン体成形工程とを備えたことを特徴とするグリーン体の製造方法。 - 前記グリーン体成形工程は、前記複合化工程で得られた前記複合粒子が分散されたスラリーを用いて前記グリーン体の造形を行った後に、乾燥を実施してから、熱可塑性樹脂粒子が溶融する温度以上で加熱することを特徴とする請求項11または12に記載のグリーン体の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015242743 | 2015-12-11 | ||
JP2015242743 | 2015-12-11 | ||
PCT/JP2016/086828 WO2017099250A1 (ja) | 2015-12-11 | 2016-12-11 | 粉末粒子及びこれを用いたグリーン体の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2017099250A1 JPWO2017099250A1 (ja) | 2018-10-18 |
JP6892122B2 true JP6892122B2 (ja) | 2021-06-18 |
Family
ID=59013295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017555179A Active JP6892122B2 (ja) | 2015-12-11 | 2016-12-11 | 粉末粒子及びこれを用いたグリーン体の製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10898951B2 (ja) |
EP (1) | EP3388407B1 (ja) |
JP (1) | JP6892122B2 (ja) |
WO (1) | WO2017099250A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019177614A1 (en) | 2018-03-15 | 2019-09-19 | Hewlett-Packard Development Company, L.P. | Composition |
JP7252941B2 (ja) | 2018-03-30 | 2023-04-05 | 株式会社フジミインコーポレーテッド | 炭化ケイ素焼結体用分散体、これを用いた炭化ケイ素焼結体用グリーンシートおよび炭化ケイ素焼結体用プリプレグ材、ならびにその製造方法 |
US20210163350A1 (en) * | 2018-07-02 | 2021-06-03 | Basf Se | Process for the production of sinter powder particles (sp) containing at least one reinforcement fiber |
JP7321624B2 (ja) * | 2018-12-25 | 2023-08-07 | エルジー・ケム・リミテッド | 成形装置及び成形体の製造方法 |
US11426929B2 (en) * | 2019-07-04 | 2022-08-30 | Ricoh Company, Ltd. | Powder material for producing three-dimensional object, kit for producing three-dimensional object, and three-dimensional object producing method and apparatus |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03112845A (ja) * | 1989-09-25 | 1991-05-14 | Shinko Electric Ind Co Ltd | セラミック基板形成用の粉末と該粉末を用いて形成したセラミック基板 |
US5102592A (en) * | 1990-10-19 | 1992-04-07 | Rutgers University | Method of preparing ceramic powder and green and sintered articles therefrom |
JPH07157808A (ja) | 1993-12-08 | 1995-06-20 | Janome Sewing Mach Co Ltd | 精密粉末焼結品の製造用素材及び製造方法 |
JPH08134504A (ja) | 1994-11-02 | 1996-05-28 | Janome Sewing Mach Co Ltd | 粉末硬化による精密部品の製造方法 |
US7288222B2 (en) | 2000-03-31 | 2007-10-30 | Toto Ltd. | Method of producing a carbide sintered compact |
JP4701494B2 (ja) * | 2000-11-24 | 2011-06-15 | Toto株式会社 | 炭化硼素焼結体の製造方法 |
JP2003183702A (ja) * | 2001-12-18 | 2003-07-03 | Aisin Seiki Co Ltd | 軟磁性粉末材料、軟磁性成形体及び軟磁性成形体の製造方法 |
US20030219617A1 (en) * | 2002-05-21 | 2003-11-27 | Jfe Steel Corporation, A Corporation Of Japan | Powder additive for powder metallurgy, iron-based powder mixture for powder metallurgy, and method for manufacturing the same |
JP4629654B2 (ja) | 2003-02-18 | 2011-02-09 | ダイムラー・アクチェンゲゼルシャフト | 積層造形法による三次元体製造のためのコーティングされた粉末粒子 |
JP4560784B2 (ja) * | 2004-02-24 | 2010-10-13 | 日立金属株式会社 | 金属微粒子およびその製造方法ならびに磁気ビーズ |
JP4817633B2 (ja) * | 2004-09-28 | 2011-11-16 | 京セラ株式会社 | セラミックスラリの調製方法およびセラミックスの製法 |
WO2007011048A1 (ja) * | 2005-07-22 | 2007-01-25 | Usui Kokusai Sangyo Kaisha, Ltd. | フィンチューブ |
US8182599B2 (en) | 2005-07-22 | 2012-05-22 | Krosaki Harima Corporation | Carbon-containing refractory, production method thereof, and pitch-containing refractory raw material |
JP2010064945A (ja) * | 2008-09-12 | 2010-03-25 | Toyohashi Univ Of Technology | セラミック複合粒子の製造法および機能性セラミック複合材料 |
JP5808889B2 (ja) * | 2010-04-07 | 2015-11-10 | 株式会社ノリタケカンパニーリミテド | コアシェル粒子の製造方法 |
JP2012101951A (ja) * | 2010-11-08 | 2012-05-31 | Toyohashi Univ Of Technology | 多結晶材料および多結晶材料の製造方法 |
CN103459009B (zh) | 2011-03-31 | 2016-06-22 | 国立大学法人丰桥技术科学大学 | 复合粒子制造装置及复合粒子的制造方法 |
JP2013209693A (ja) * | 2012-03-30 | 2013-10-10 | Hitachi Metals Ltd | 複合磁性金属粉末、その製造方法、及び、圧粉磁心 |
JP6691708B2 (ja) * | 2016-02-11 | 2020-05-13 | 国立大学法人豊橋技術科学大学 | 傾斜機能材料およびその製造方法ならびに複合粒子スラリの製造方法 |
-
2016
- 2016-12-11 JP JP2017555179A patent/JP6892122B2/ja active Active
- 2016-12-11 WO PCT/JP2016/086828 patent/WO2017099250A1/ja active Application Filing
- 2016-12-11 US US16/060,727 patent/US10898951B2/en active Active
- 2016-12-11 EP EP16873143.8A patent/EP3388407B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
JPWO2017099250A1 (ja) | 2018-10-18 |
EP3388407B1 (en) | 2022-02-09 |
EP3388407A4 (en) | 2018-12-19 |
EP3388407A1 (en) | 2018-10-17 |
US10898951B2 (en) | 2021-01-26 |
WO2017099250A1 (ja) | 2017-06-15 |
US20180369908A1 (en) | 2018-12-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6892122B2 (ja) | 粉末粒子及びこれを用いたグリーン体の製造方法 | |
KR101660665B1 (ko) | 다공질 알루미늄 소결체 | |
KR102359523B1 (ko) | 부품을 제조하기 위한 방법 | |
KR20150123219A (ko) | 소결용 알루미늄 원료, 소결용 알루미늄 원료의 제조 방법 및 다공질 알루미늄 소결체의 제조 방법 | |
KR101612341B1 (ko) | 나노 입자 및 바인더를 함유한 잉크 조성물 및 이를 이용한 3차원 물품의 제조방법 | |
JP2018516834A (ja) | 結合済みジルコニア耐火物及びその作製方法 | |
EP3352975A1 (en) | Three-dimensional (3d) printing with a sintering aid/fixer fluid and a liquid functional material | |
CN104671751B (zh) | 一种孔径可控的闭孔氧化铝基陶瓷的制备方法 | |
US20200198979A1 (en) | Method for producing porous carbon material | |
JP6459726B2 (ja) | 多孔質アルミニウム焼結体、多孔質アルミニウム複合部材、多孔質アルミニウム焼結体の製造方法、多孔質アルミニウム複合部材の製造方法 | |
CN109071357B (zh) | 将基于石墨烯的添加剂添加至应用激光烧蚀的涂层中使用的靶材的方法 | |
WO2016068176A1 (ja) | 多孔質アルミニウム焼結体及び多孔質アルミニウム焼結体の製造方法 | |
KR101604251B1 (ko) | 유동성이 우수한 금속분말 및 그 제조방법 | |
JP2012101951A (ja) | 多結晶材料および多結晶材料の製造方法 | |
Pires et al. | Improvement of processability characteristics of porcelain-based formulations toward the utilization of 3D printing technology | |
Malik et al. | Robocasting—Printing Ceramics into Functional Materials | |
KR20160055522A (ko) | 세라믹 분체-cnt 복합체 및 이의 제조방법 | |
JP2023078711A (ja) | コアシェル型複合顆粒、コアシェル型複合顆粒を用いて作製した無機複合材料及びそれらの製造方法 | |
TWI710522B (zh) | 金屬的石墨烯改性方法 | |
KR101730851B1 (ko) | 소결거동을 제어하는 나노-마이크로 혼합 분말 및 그 제조방법 | |
US20240058889A1 (en) | Additively manufactured joined parts | |
Cortes | 3D printed ceramics structures-Challenges and applications | |
WO2007138806A1 (ja) | チタン粉末焼結体の製造方法 | |
Martin | Processing to Enable Direct-Write Additive Manufacturing of Ceramics and Ceramic Composites | |
WO2017208913A1 (ja) | セラミックフィルター及びセラミックフィルターの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A529 | Written submission of copy of amendment under article 34 pct |
Free format text: JAPANESE INTERMEDIATE CODE: A5211 Effective date: 20180611 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20191120 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200623 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200821 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20201124 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210121 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210427 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210520 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6892122 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |