ES478245A1 - Procedimiento para la fabricacion de cuerpos moldeados poli-cristalinos. - Google Patents

Procedimiento para la fabricacion de cuerpos moldeados poli-cristalinos.

Info

Publication number
ES478245A1
ES478245A1 ES478245A ES478245A ES478245A1 ES 478245 A1 ES478245 A1 ES 478245A1 ES 478245 A ES478245 A ES 478245A ES 478245 A ES478245 A ES 478245A ES 478245 A1 ES478245 A1 ES 478245A1
Authority
ES
Spain
Prior art keywords
silicon carbide
weight
preparation
polycrystalline silicon
articles
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.)
Expired
Application number
ES478245A
Other languages
English (en)
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.)
Elektroschmelzwerk Kempten GmbH
Original Assignee
Elektroschmelzwerk Kempten 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 Elektroschmelzwerk Kempten GmbH filed Critical Elektroschmelzwerk Kempten GmbH
Publication of ES478245A1 publication Critical patent/ES478245A1/es
Expired 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
    • C04B35/56—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Silicon Compounds (AREA)

Abstract

Procedimiento para la fabricación de cuerpos moldeados policristalinos con una densidad de por lo menos 97% de la densidad teórica del carburo de silicio, que constan de por lo menos 95,4% en peso de carburo de silicio alpha , aproximadamente 0,1 hasta 2,0% en peso de carbono adicional, aproximadamente 0,2 hasta 2,0% en peso de aluminio, hasta aproximadamente 0,5% en peso de nitrógeno, y hasta aproximadamente 0,1% en peso de oxígeno, estando presente el carburo de silicio alpha en forma de una estructura homogénea con tamaños de granos de como máximo 10 micram, con una resistencia a la rotura por flexión hasta a 1.600ºC de por lo menos 500 N/mm2 y con un modo de rotura transcristalino, por medio de sinterización sin presión, que se caracteriza porque se mezcla homogéneamente carburo de silicio en forma de polvo, presente esencialmente en la modificación alpha, con una distribución de tamaños de granos de 3 micram y más finos, con un aditivo que contiene aluminio en una cantidad correspondiente a 0,3 hasta 3% en peso de aluminio libre, referido al peso del carburo de silicio utilizado y con un aditivo que contiene carbono en forma de carbono amorfo o con un material coquizable a temperaturas de hasta aproximadamente 1.000ºC con formación de carbono amorfo, en una cantidad correspondiente a 0,2 hasta 3% en peso de carbono libre, referido al peso del carburo de silicio utilizado, se prensa en frío con conformación, y los cuerpos previamente moldeados, obtenidos de esta manera, con una densidad de por lo menos 50% de la densidad teórica del carburo de silicio, son sinterizados a continuación en presencia de una atmósfera inerte frente al carburo de silicio, o en vacío a una temperatura de 2.OOOº hasta 2.300ºC hasta la formación de los cuerpos moldeados policristalinos.
ES478245A 1978-03-03 1979-03-02 Procedimiento para la fabricacion de cuerpos moldeados poli-cristalinos. Expired ES478245A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782809278 DE2809278A1 (de) 1978-03-03 1978-03-03 Dichte polykristalline formkoerper aus alpha-siliciumcarbid und verfahren zu ihrer herstellung durch drucklose sinterung

Publications (1)

Publication Number Publication Date
ES478245A1 true ES478245A1 (es) 1979-05-16

Family

ID=6033515

Family Applications (1)

Application Number Title Priority Date Filing Date
ES478245A Expired ES478245A1 (es) 1978-03-03 1979-03-02 Procedimiento para la fabricacion de cuerpos moldeados poli-cristalinos.

Country Status (9)

Country Link
US (1) US4230497A (es)
EP (1) EP0004031B1 (es)
JP (1) JPS54118411A (es)
AT (1) AT366720B (es)
AU (1) AU525303B2 (es)
CA (1) CA1138901A (es)
DE (2) DE2809278A1 (es)
ES (1) ES478245A1 (es)
NO (1) NO148147C (es)

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JPS553396A (en) * 1978-06-15 1980-01-11 Carborundum Co Silicon carbideealuminum nitride sintered product and its manugacture
DE2927226A1 (de) * 1979-07-05 1981-01-08 Kempten Elektroschmelz Gmbh Dichte formkoerper aus polykristallinem beta -siliciumcarbid und verfahren zu ihrer herstellung durch heisspressen
DE2923728A1 (de) * 1979-06-12 1980-12-18 Kempten Elektroschmelz Gmbh Dichte formkoerper aus polykristallinem alpha -siliciumcarbid und verfahren zu ihrer herstellung durch heisspressen
FR2467831A1 (fr) * 1979-10-19 1981-04-30 Comp Generale Electricite Procede d'elaboration d'une ceramique dense en carbure de silicium
US4318876A (en) * 1979-10-19 1982-03-09 Societe Anonyme Dite: Compagnie Generale D'electricite Method of manufacturing a dense silicon carbide ceramic
FR2500438A1 (fr) * 1981-02-24 1982-08-27 Ceraver Procede de fabrication de pieces en carbure de silicium dense
DE3129633A1 (de) * 1981-07-28 1983-02-17 Elektroschmelzwerk Kempten GmbH, 8000 München "praktisch porenfreie formkoerper aus polykristallinem siliciumcarbid, die durch isostatisches heisspressen hergestellt worden sind"
DE3132237C2 (de) * 1981-08-14 1985-02-28 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Verfahren zur Herstellung eines Thermoelements
DE3329225A1 (de) * 1982-08-13 1984-02-23 Ngk Spark Plug Co., Ltd., Nagoya, Aichi Gleitmaterial auf siliciumcarbidbasis
JPS59102872A (ja) * 1982-12-06 1984-06-14 日本特殊陶業株式会社 炭化珪素．黒鉛複合焼結体の製造方法
JPS59107975A (ja) * 1982-12-08 1984-06-22 旭硝子株式会社 ＳｉＣ質焼結体およびその製法
US4633051A (en) * 1983-11-23 1986-12-30 Advanced Semiconductor Materials America, Inc. Stable conductive elements for direct exposure to reactive environments
US4578363A (en) * 1984-01-23 1986-03-25 Kennecott Corporation Silicon carbide refractories having modified silicon nitride bond
JPS60221365A (ja) * 1984-04-13 1985-11-06 住友化学工業株式会社 高強度炭化珪素焼結体の製造法
US4692418A (en) * 1984-08-29 1987-09-08 Stemcor Corporation Sintered silicon carbide/carbon composite ceramic body having fine microstructure
GB2170511B (en) * 1984-12-17 1989-06-07 Toshiba Ceramics Co Sintered body of silicon carbide
GB2177421B (en) * 1985-05-20 1989-07-19 Toshiba Ceramics Co Sintered body of silicon carbide and method for manufacturing the same
US4701427A (en) * 1985-10-17 1987-10-20 Stemcor Corporation Sintered silicon carbide ceramic body of high electrical resistivity
JPS62167253A (ja) * 1986-01-17 1987-07-23 昭和電工株式会社 電気比抵抗の高いＳｉＣ焼結体
US4693988A (en) * 1986-07-01 1987-09-15 Kennecott Corporation Single phase silicon carbide refractory
US4981665A (en) * 1986-08-22 1991-01-01 Stemcor Corporation Hexagonal silicon carbide platelets and preforms and methods for making and using same
US5002905A (en) * 1986-08-22 1991-03-26 Stemcor Corporation Hexagonal silicon carbide platelets and preforms and methods for making and using same
JPH0643648B2 (ja) * 1987-11-27 1994-06-08 金井重要工業株式会社 紡機用リング
US5045269A (en) * 1988-11-17 1991-09-03 Union Carbide Coatings Service Technology Corporation Method for sintered shapes with controlled grain size
DE3902528A1 (de) * 1989-01-28 1990-10-31 Sintec Keramik Gmbh Herstellung von polykristallinen formkoerpern aus (alpha) - und/oder (beta)-siliciumcarbid durch drucklose sinterung
DE3915914A1 (de) * 1989-05-16 1990-11-22 Hoechst Ag Verfahren zur herstellung von gruenkoerpern und gesinterten formkoerpern aus siliciumcarbid
US5298470A (en) * 1989-09-22 1994-03-29 The Carborundum Company Silicon carbide bodies having high toughness and fracture resistance and method of making same
IE73477B1 (en) * 1989-10-26 1997-06-04 Advanced Materials Enterprise Dense siC ceramic products
DE4221318B4 (de) * 1991-06-27 2005-12-08 Kao Corp. Kohlenstoffgefülltes, keramisches Verbundmaterial, Verfahren zu seiner Herstellung und seine Verwendung
JP3147977B2 (ja) * 1991-12-19 2001-03-19 新日本製鐵株式会社 炭化珪素焼結体製反射ミラー用基板とその製造方法
US5395807A (en) * 1992-07-08 1995-03-07 The Carborundum Company Process for making silicon carbide with controlled porosity
CA2114571A1 (en) * 1993-02-04 1994-08-05 Franciscus Van Dijen Silicon carbide sintered abrasive grain and process for producing same
US5322824A (en) * 1993-05-27 1994-06-21 Chia Kai Y Electrically conductive high strength dense ceramic
US5459112A (en) * 1994-09-14 1995-10-17 The Carborundum Company Reaction-bonded silicon carbide refractory product
US5656218A (en) * 1995-05-19 1997-08-12 Industrial Technology Research Institute Method for making high performance self-reinforced silicon carbide using a pressureless sintering process
DE19537714A1 (de) * 1995-10-10 1997-04-17 Inst Neue Mat Gemein Gmbh Verfahren zur Herstellung eines leitfähigen Sinterkörpers auf der Basis von Siliciumcarbid
DE19654174A1 (de) * 1996-12-23 1998-06-25 Kempten Elektroschmelz Gmbh Gleitwerkstoff aus Siliciumcarbid
DE10004176A1 (de) * 2000-02-01 2001-08-02 Ego Elektro Geraetebau Gmbh Elektrisches Heizelement
DE10044656B4 (de) 2000-09-04 2005-12-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Offenzellige Siliciumcarbid-Schaumkeramik und Verfahren zu ihrer Herstellung
US6887421B2 (en) * 2002-01-14 2005-05-03 Redunndant Materials, Inc. Method for making a silicon carbide resistor with silicon/silicon carbide contacts by induction heating
JP2005206449A (ja) * 2003-12-26 2005-08-04 Bridgestone Corp ヒータ用炭化ケイ素焼結体の製造方法
JP4888756B2 (ja) * 2005-08-16 2012-02-29 東海高熱工業株式会社 トンネル炉の処理品搬送異常防止方法および装置
JP4878873B2 (ja) * 2006-03-09 2012-02-15 中部電力株式会社 炭化ケイ素焼結体の製造方法および炭化ケイ素焼結体
US8003042B2 (en) * 2006-03-29 2011-08-23 Ceramatec, Inc. Toughened silicon carbide and method for making the same
JP5603765B2 (ja) * 2010-11-30 2014-10-08 東京窯業株式会社 炭化ケイ素発熱体の製造方法および炭化ケイ素発熱体ならびにハニカムの製造方法およびハニカム
JP5281666B2 (ja) * 2011-02-28 2013-09-04 東京窯業株式会社 導電性セラミックス焼結体
JP5350426B2 (ja) * 2011-03-31 2013-11-27 東京窯業株式会社 導電性セラミックス焼結体の製造方法
DE102011006847A1 (de) * 2011-04-06 2012-10-11 Schunk Kohlenstofftechnik Gmbh Verfahren zur Herstellung eines Widerstandsheizelements sowie Widerstandsheizelement
KR102017689B1 (ko) * 2012-10-18 2019-10-21 엘지이노텍 주식회사 탄화규소 분말의 제조 방법
FR3030297B1 (fr) * 2014-12-18 2016-12-23 Saint-Gobain Centre De Rech Et D'Etudes Europeen Filtres comprenant des membranes en sic incorporant de l'azote
WO2023286038A1 (en) * 2021-07-16 2023-01-19 John Crane Inc. Rotating seal ring material

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Publication number Priority date Publication date Assignee Title
US3836673A (en) * 1972-03-23 1974-09-17 Norton Co Sintered silicon carbide
GB1443158A (en) * 1972-12-05 1976-07-21 Std Services Ltd Silon carbide for cold drawing tools
US3966855A (en) * 1974-02-22 1976-06-29 The United States Of America As Represented By The Secretary Of The Air Force Method of fabricating silicon carbide articles
JPS5165111A (es) * 1974-11-11 1976-06-05 Norton Co
US3998646A (en) * 1974-11-11 1976-12-21 Norton Company Process for forming high density silicon carbide
US4312954A (en) * 1975-06-05 1982-01-26 Kennecott Corporation Sintered silicon carbide ceramic body
US4031178A (en) * 1976-04-09 1977-06-21 General Electric Company Strength improvement in machined SiC bodies
FR2355789A1 (fr) * 1976-06-24 1978-01-20 Comp Generale Electricite Ceramique de carbure de silicium et procede de realisation de cette ceramique
US4123286A (en) * 1976-12-27 1978-10-31 The Carborundum Company Silicon carbide powder compositions
US4135937A (en) * 1977-03-31 1979-01-23 The Carborundum Company High density hot pressed thermal shock resistant silicon carbide
US4141740A (en) * 1978-02-23 1979-02-27 University Of Utah Solid solution and process for producing a solid solution

Also Published As

Publication number Publication date
EP0004031B1 (de) 1981-04-01
AU4474179A (en) 1979-09-06
JPS6228109B2 (es) 1987-06-18
ATA159879A (de) 1981-09-15
JPS54118411A (en) 1979-09-13
US4230497A (en) 1980-10-28
CA1138901A (en) 1983-01-04
EP0004031A1 (de) 1979-09-19
NO148147C (no) 1983-08-24
AU525303B2 (en) 1982-10-28
NO148147B (no) 1983-05-09
DE2960224D1 (en) 1981-04-23
NO790699L (no) 1979-09-04
DE2809278A1 (de) 1979-09-06
AT366720B (de) 1982-05-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971201