JP2008260661A - 炭化珪素−炭化珪素繊維複合体及びその製造方法 - Google Patents
炭化珪素−炭化珪素繊維複合体及びその製造方法 Download PDFInfo
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- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
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Abstract
【効果】本発明の炭化珪素−炭化珪素繊維複合体は、耐酸化性に優れた材料であり、耐熱材料としての使用範囲が広がり、種々の用途に使用することが可能となった。また、炭化珪素化する方法も簡便であり、しかも品質のバラツキの少ない炭化珪素−炭化珪素繊維複合体を得ることが可能であり、工業的規模の生産にも十分耐え得るものである。
【選択図】なし
Description
そこで、耐酸化性を向上させるため、黒鉛材を炭化珪素化する方法が種々、試みられてきた。
(1)炭化珪素粉末と炭化珪素繊維とから形成される炭化珪素−炭化珪素繊維複合体。
(2)炭化珪素繊維の混合割合が20〜70質量%であることを特徴とする(1)記載の炭化珪素−炭化珪素繊維複合体。
(3)黒鉛粉末と黒鉛繊維とからなるC/Cコンポジット材を1100〜1800℃の温度範囲にてSiOガスと反応させ、黒鉛を炭化珪素に転化させることを特徴とする炭化珪素−炭化珪素繊維複合体の製造方法。
(4)上記C/Cコンポジットの黒鉛繊維の混合割合が20〜70質量%であることを特徴とする(3)記載の炭化珪素−炭化珪素繊維複合体の製造方法。
(5)黒鉛粉末と黒鉛繊維とからなるC/Cコンポジット材とSiOガスとの反応を1000Pa以下の減圧下で行わせることを特徴とする(3)又は(4)記載の炭化珪素−炭化珪素繊維複合体の製造方法
を提供する。
この場合、炭化珪素−炭化珪素繊維複合体の形状は特に制限はなく、その用途に応じて適宜選定される。
本発明の炭化珪素−炭化珪素繊維複合体は、黒鉛粉末と黒鉛繊維とからなるC/Cコンポジット材を1100〜1800℃の温度範囲にてSiOガスと反応させ、黒鉛を炭化珪素に転化させることで製造できる。
[1]SiO自体を加熱する方法
SiO(s)→SiO(g)
[2]シリカと珪素を加熱する方法
SiO2(s)+Si(s)→2SiO(g)
[3]シリカと黒鉛を加熱する方法
SiO2(s)+C(s)→SiO(g)+CO(g)
処理後の炭化珪素−炭化珪素繊維複合体の純度を高めるため、炭化珪素−炭化珪素繊維複合体を大気中等の酸化性雰囲気中で熱処理し、炭化珪素−炭化珪素繊維複合体中に残存する未反応黒鉛を除去することもできる。この場合、処理温度は800℃以上、特に850〜1100℃が好ましい。
100mm×100mm×5mm(厚さ)のC/Cコンポジット板材(黒鉛粉(平均粒径3μm)/黒鉛繊維(長さ200μm、直径5μm、アスペクト比40)=1/1(質量比))と、平均粒径5μmの珪素粉末とBET比表面積が300m2/gのヒュームドシリカとの等モル混合物(Si/SiO2=1/1(モル比))200gをアルミナ製ルツボに仕込んだものを処理炉内に静置した。次に、処理炉内を真空ポンプで100Pa以下に減圧した後、加熱し、1400℃で5hr保持した。
C/Cコンポジットの代わりに黒鉛板を使用した他は実施例と同様な方法で黒鉛板の炭化珪素処理を行った。
その結果、反応途中で黒鉛板が破損してしまい、形状を保持することができなかった。
Claims (5)
- 炭化珪素粉末と炭化珪素繊維とから形成される炭化珪素−炭化珪素繊維複合体。
- 炭化珪素繊維の混合割合が20〜70質量%であることを特徴とする請求項1記載の炭化珪素−炭化珪素繊維複合体。
- 黒鉛粉末と黒鉛繊維とからなるC/Cコンポジット材を1100〜1800℃の温度範囲にてSiOガスと反応させ、黒鉛を炭化珪素に転化させることを特徴とする炭化珪素−炭化珪素繊維複合体の製造方法。
- 上記C/Cコンポジットの黒鉛繊維の混合割合が20〜70質量%であることを特徴とする請求項3記載の炭化珪素−炭化珪素繊維複合体の製造方法。
- 黒鉛粉末と黒鉛繊維とからなるC/Cコンポジット材とSiOガスとの反応を1000Pa以下の減圧下で行わせることを特徴とする請求項3又は4記載の炭化珪素−炭化珪素繊維複合体の製造方法。
Priority Applications (3)
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---|---|---|---|
JP2007105500A JP2008260661A (ja) | 2007-04-13 | 2007-04-13 | 炭化珪素−炭化珪素繊維複合体及びその製造方法 |
US12/050,769 US20080254287A1 (en) | 2007-04-13 | 2008-03-18 | Silicon carbide-silicon carbide fiber composite and making method |
US12/726,181 US20100179049A1 (en) | 2007-04-13 | 2010-03-17 | Silicon carbide-silicon carbide fiber composite and making method |
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JP2007105500A JP2008260661A (ja) | 2007-04-13 | 2007-04-13 | 炭化珪素−炭化珪素繊維複合体及びその製造方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103409851A (zh) * | 2013-08-23 | 2013-11-27 | 厦门大学 | 一种含钴碳化硅纤维的制备方法 |
JP2018529613A (ja) * | 2015-08-20 | 2018-10-11 | エレメント、シックス、(ユーケー)、リミテッドElement Six (Uk) Limited | 複合材料、複合材料を含んでなる部品、およびその使用方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7333172B2 (ja) | 2015-08-20 | 2023-08-24 | インテグリス・インコーポレーテッド | 炭化ケイ素/黒鉛複合材並びにそれを含む物品及び組立品 |
CN113800801A (zh) * | 2020-06-15 | 2021-12-17 | 唐山顺浩环保科技有限公司 | 一种陶瓷纤维颗粒及其制备方法与应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5281309A (en) * | 1975-10-27 | 1977-07-07 | Tohoku Daigaku Kinzoku Zairyo | Manufacture of heat resistant ceramic complex materials reinforced by silicon carbide continuous fiber |
JPS6479070A (en) * | 1987-09-22 | 1989-03-24 | Petoca Ltd | Production of high strength carbon-carbon composite material |
JPH0559350A (ja) * | 1987-11-06 | 1993-03-09 | Ibiden Co Ltd | 摩擦デイスクの製造方法 |
JPH0797281A (ja) * | 1993-06-21 | 1995-04-11 | New Oji Paper Co Ltd | 炭化珪素材料の製造方法 |
JP2002356381A (ja) * | 2001-05-31 | 2002-12-13 | Japan Science & Technology Corp | SiC繊維強化型SiC複合材料の製造方法 |
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US3634116A (en) * | 1969-06-02 | 1972-01-11 | Dow Corning | Silicon-carbide-encased graphite articles and their production |
DE2910059C2 (de) * | 1978-03-15 | 1982-05-19 | Suzuki, Hiroshige, Tokyo | Verfahren zur Herstellung von feinteiligem Siliziumkarbid sowie dessen Verwendung zur Herstellung von hochdichten Sinterkörpern |
US4481179A (en) * | 1983-10-12 | 1984-11-06 | The United States Of America As Represented By The United States Department Of Energy | Method for forming fibrous silicon carbide insulating material |
DE3617055C2 (de) * | 1985-05-21 | 1996-03-07 | Toyoda Chuo Kenkyusho Kk | Fasermaterial für Verbundmaterialien, Verfahren zu dessen Herstellung und Verwendung dieses Fasermaterials |
US5093039A (en) * | 1989-01-30 | 1992-03-03 | Kazunori Kijima | Highly pure sintered carbide with high electric conductivity and process of producing the same |
US5296311A (en) * | 1992-03-17 | 1994-03-22 | The Carborundum Company | Silicon carbide reinforced reaction bonded silicon carbide composite |
GB2270310B (en) * | 1992-09-02 | 1995-11-08 | Rolls Royce Plc | A method of manufacturing a hollow silicon carbide fibre reinforced silicon carbide matrix component |
JPH11200158A (ja) * | 1997-12-26 | 1999-07-27 | Oji Paper Co Ltd | 炭化ケイ素繊維の製造方法 |
US7083771B2 (en) * | 2002-07-10 | 2006-08-01 | Advanced Composite Materials Corporation | Process for producing silicon carbide fibers essentially devoid of whiskers |
US20040009112A1 (en) * | 2002-07-10 | 2004-01-15 | Advanced Composite Materials Corporation | Silicon carbide fibers essentially devoid of whiskers and method for preparation thereof |
-
2007
- 2007-04-13 JP JP2007105500A patent/JP2008260661A/ja active Pending
-
2008
- 2008-03-18 US US12/050,769 patent/US20080254287A1/en not_active Abandoned
-
2010
- 2010-03-17 US US12/726,181 patent/US20100179049A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5281309A (en) * | 1975-10-27 | 1977-07-07 | Tohoku Daigaku Kinzoku Zairyo | Manufacture of heat resistant ceramic complex materials reinforced by silicon carbide continuous fiber |
JPS6479070A (en) * | 1987-09-22 | 1989-03-24 | Petoca Ltd | Production of high strength carbon-carbon composite material |
JPH0559350A (ja) * | 1987-11-06 | 1993-03-09 | Ibiden Co Ltd | 摩擦デイスクの製造方法 |
JPH0797281A (ja) * | 1993-06-21 | 1995-04-11 | New Oji Paper Co Ltd | 炭化珪素材料の製造方法 |
JP2002356381A (ja) * | 2001-05-31 | 2002-12-13 | Japan Science & Technology Corp | SiC繊維強化型SiC複合材料の製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103409851A (zh) * | 2013-08-23 | 2013-11-27 | 厦门大学 | 一种含钴碳化硅纤维的制备方法 |
JP2018529613A (ja) * | 2015-08-20 | 2018-10-11 | エレメント、シックス、(ユーケー)、リミテッドElement Six (Uk) Limited | 複合材料、複合材料を含んでなる部品、およびその使用方法 |
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US20080254287A1 (en) | 2008-10-16 |
US20100179049A1 (en) | 2010-07-15 |
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