EP4426662A1 - Verfahren zur herstellung von carbonisierten oder graphitierten 3d-gegenständen - Google Patents

Verfahren zur herstellung von carbonisierten oder graphitierten 3d-gegenständen

Info

Publication number
EP4426662A1
EP4426662A1 EP22803190.2A EP22803190A EP4426662A1 EP 4426662 A1 EP4426662 A1 EP 4426662A1 EP 22803190 A EP22803190 A EP 22803190A EP 4426662 A1 EP4426662 A1 EP 4426662A1
Authority
EP
European Patent Office
Prior art keywords
blank
temperature
objects
furnace
graphitized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22803190.2A
Other languages
German (de)
English (en)
French (fr)
Inventor
Torsten Kornmeyer
David Klein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Kornmeyer Carbon Group GmbH
Original Assignee
Nippon Kornmeyer Carbon Group GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Kornmeyer Carbon Group GmbH filed Critical Nippon Kornmeyer Carbon Group GmbH
Publication of EP4426662A1 publication Critical patent/EP4426662A1/de
Pending legal-status Critical Current

Links

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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/522—Graphite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
    • C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • C04B35/573—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained by reaction sintering or recrystallisation
    • 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
    • C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
    • 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
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C04B35/83—Carbon fibres in a carbon matrix
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • 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
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/428—Silicon
    • 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
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment
    • C04B2235/6581—Total pressure below 1 atmosphere, e.g. vacuum

Definitions

  • the invention relates to a method for producing carbonized or graphitized 3D objects.
  • Such carbonized or graphitized 3D objects which are also suitable for high-temperature applications, can be various components, such as linings for furnaces, structural components or any type of hollow body, container or crucible.
  • a suitable carbonaceous and malleable mass must generally be made.
  • a suitable binder such as a thermoplastic binder.
  • Pitch based on coal tar or petroleum pitch, or even synthetic resins, can also be considered as binders.
  • the green molded part can also be arranged as a resistance element in a furnace between electrodes and heated by current flow.
  • the difficulty in carbonizing or graphitizing a such a molded part is that at the high temperatures required here, volatile substances outgas more or less violently, which can lead to disruptions in the structure, such as cracks or gas inclusions.
  • the object of the invention is to create a method for producing carbonized or graphitized 3D objects which is particularly easy to implement and which also allows more complex 3D objects to be produced without disrupting the structure.
  • bamboo, cotton, hemp, sisal or graphite fibers can be added to the carbonizable or graphitizable material while retaining the kneadability be mixed in.
  • the 3D blank is shaped by hand using suitable templates.
  • the 3D blank is produced by molding in a mold.
  • Argon or helium is preferably used as the protective gas.
  • the 3D blank can be subjected to a stabilization and homogenization process at a stabilization temperature of 170°C in air or up to a maximum of 450°C in air, with a temperature of 250°C being preferred, so that a 3D molded part arises.
  • the stabilization and homogenization process can also be carried out under an inert gas such as argon.
  • the 3D blank can also be stabilized and homogenized while the furnace is being heated up.
  • the 3D shaped part is carbonized at a constant temperature of approx. 1,000° C. to form a 3D object until pure carbon with a different crystal structure is formed.
  • the 3D molded part is graphitized at a constant temperature of 2,000° C. and above.
  • the 3D molded part can be fully graphitized at a temperature of over 2,500°C.
  • the graphitization preferably takes place with a heating ramp of about 1° C./min until the target temperature has been reached, followed by tempering over approx. 30 min, depending on the size of the 3D molded parts.
  • a metal or silicon powder can be added to the kneadable mass, so that during a high-temperature treatment of the 3D molded part at >1. 000 °C under protective gas metal carbides or silicon carbides can be formed.
  • the graphitized foamy 3D objects can also be baked in an oven at a temperature of >1. 200 ° C with supply of gaseous SiO with argon as carrier gas at a pressure of approx . 30 mbar can be converted into 3D objects made of SiC.
  • a kneadable, largely dimensionally stable mass is produced by mixing a carbonizable or graphitizable material with a free-flowing organic adhesive, or a flowable thermoplastic organic material, followed by molding the mass into a 3D blank.
  • the 3D blank is then freed from moisture and gas inclusions in particular in a drying and outgassing process at elevated temperature and thereby converted into a 3D molded part. This can prevent cracks from forming during the subsequent carbonization or graphitization of the 3D molded part in a furnace under vacuum or inert gas, such as argon or helium, to produce a 3D object be avoided.
  • Carbon black, graphite dust, natural graphite and starch, e.g. corn or potato starch or the like, or a mixture of some or all of these materials can preferably be used as carbonizable or graphitizable organic material.
  • the carbonized or graphitizable organic material can be supplemented with bamboo, cotton, hemp, sisal, or other suitable vegetable fibers, or graphite fibers while maintaining the clay Ability to be blended, adding more flowable adhesive or flowable organic if necessary, until the desired consistency is achieved.
  • the 3D blank can be shaped by hand, for example using templates, or by shaping in a mold, with the 3D blank being removed from the mold before the drying process.
  • a mold made of Teflon, silicone or another material with limited elasticity can be used to enable easier demolding of the 3D blank.
  • the 3D molded part can be subjected to the drying process at room temperature or at a maximum of 100°C in order to remove any water present.
  • a subsequent stabilization and homogenization process at a stabilization temperature of 140°C in air or up to a maximum of 450°C, under protective gas or vacuum, with a temperature of 250°C being preferred, a Outgassing to avoid cracking during later carbonization or graphitization.
  • the 3D molded part can remain in a suitable shape during the stabilization or homogenization process.
  • the 3D molded part can also be stabilized and homogenized while the furnace is being heated up.
  • the 3D molded part is heated at a constant temperature of approx. 1 . 000 ° C to a 3D object carbonized in the oven until pure carbon with different crystal structure is formed.
  • the 3D molded part is then formed at a constant temperature to form a 3D object from 2 . 000 ° C graphitized in the furnace .
  • the 3D molded part can be processed at a temperature above 2 . 500 ° C to form a 3D object in the furnace to be fully graphitized.
  • the carbonization or graphitization preferably takes place with a heating ramp of about 1° C./min until the target temperature has been reached, followed by tempering over approx. 30 min, although tempering for several hours is also possible.
  • a metal or silicon powder can be added to the kneadable mass, so that during a high-temperature treatment of the 3D molded part at >1. 000 °C under protective gas metal carbides or silicon carbides can be formed.
  • the graphitized foamy 3D objects can also be baked in an oven at a temperature of >1. 200 ° C with supply of gaseous SiO with argon as carrier gas at a pressure of approx . 30 mbar can be converted into 3D objects made of SiC.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Ceramic Products (AREA)
  • Carbon And Carbon Compounds (AREA)
EP22803190.2A 2021-11-01 2022-10-13 Verfahren zur herstellung von carbonisierten oder graphitierten 3d-gegenständen Pending EP4426662A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021128414.7A DE102021128414A1 (de) 2021-11-01 2021-11-01 Verfahren zur Herstellung von karbonisierten oder graphitierten 3D-Gegenständen
PCT/EP2022/078542 WO2023072613A1 (de) 2021-11-01 2022-10-13 Verfahren zur herstellung von carbonisierten oder graphitierten 3d-gegenständen

Publications (1)

Publication Number Publication Date
EP4426662A1 true EP4426662A1 (de) 2024-09-11

Family

ID=84358515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22803190.2A Pending EP4426662A1 (de) 2021-11-01 2022-10-13 Verfahren zur herstellung von carbonisierten oder graphitierten 3d-gegenständen

Country Status (6)

Country Link
US (1) US20250270143A1 (https=)
EP (1) EP4426662A1 (https=)
JP (1) JP2024541038A (https=)
CN (1) CN118201893A (https=)
DE (1) DE102021128414A1 (https=)
WO (1) WO2023072613A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021130581A1 (de) * 2021-11-23 2023-05-25 Nippon Kornmeyer Carbon Group Gmbh Verfahren zur Herstellung von porösem Karbon oder Graphit
CN119390473B (zh) * 2024-11-12 2025-07-22 成都方大炭炭复合材料股份有限公司 一种多孔石墨材料及其制备方法
CN120329009B (zh) * 2025-06-18 2025-09-30 安徽省萧县华龙耐火材料有限责任公司 一种纳米钢包镁碳砖及其制备工艺

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GB1415089A (en) * 1972-05-30 1975-11-26 Valley Co Inc Methods of producing carbonaceous bodies and the products thereof
DE3922539A1 (de) 1989-07-08 1991-01-10 Sintec Keramik Gmbh Verfahren zur herstellung von hochpraezisen heizelementen aus c f c
WO2001098207A1 (en) 2000-06-19 2001-12-27 Corning Incorporated Plasticizable mixture and method of using
EP1741687B1 (de) 2005-07-05 2011-10-12 MANN+HUMMEL Innenraumfilter GmbH & Co. KG Poröser beta-SIC-haltiger keramischer Formkörper und Verfahren zu dessen Herstellung aus einem Kohlenstoff-haltigen Formkörper
JP2007145665A (ja) * 2005-11-29 2007-06-14 Tokai Konetsu Kogyo Co Ltd 多孔質ＳｉＣ焼結体の製造方法
FR3010994B1 (fr) * 2013-09-20 2019-10-18 Universite De Lorraine Matrices carbonees poreuses pour le stockage d'energie thermique
DE102013114628B4 (de) 2013-12-20 2018-11-22 Deutsches Zentrum Für Luft- Und Raumfahrt Verfahren zum Herstellen von endkonturnah geformten Siliciumcarbid-Keramiken
JP2016179923A (ja) * 2015-03-24 2016-10-13 株式会社神戸製鋼所 炭素材料の製造方法及び炭素材料
WO2018196965A1 (en) 2017-04-26 2018-11-01 Università Degli Studi Di Pavia Manufacture of ceramic objects by 3d-printing
CN108675790B (zh) * 2018-06-20 2021-01-26 三峡大学 一种石墨/碳化硅隔热背衬及其制备方法
CN110436926B (zh) * 2019-08-27 2021-04-06 西南交通大学 一种高电导率受电弓碳滑板及其制备方法
CN111138207A (zh) * 2020-01-14 2020-05-12 大同新成新材料股份有限公司 一种直拉单晶硅炉用石墨热场材料制备方法

Also Published As

Publication number Publication date
JP2024541038A (ja) 2024-11-06
WO2023072613A1 (de) 2023-05-04
US20250270143A1 (en) 2025-08-28
CN118201893A (zh) 2024-06-14
DE102021128414A1 (de) 2023-05-04

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