JP5825761B2 - セラミックマトリックス複合材の製造方法 - Google Patents
セラミックマトリックス複合材の製造方法 Download PDFInfo
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Description
12 層
14 トウ
16 繊維
18 マトリックス
Claims (10)
- セラミックマトリックス複合材物品(10)を製造する方法であって、
セラミック強化材(14、16)を含む多孔質プリフォーム中に、元素状ケイ素及び/又はケイ素合金を溶浸させて、溶浸プリフォームを形成し、次いで溶浸プリフォームを冷却することによって、セラミックマトリックス材料(18)及び固体の元素状ケイ素及び/又はケイ素合金を含む固体マトリックス中にセラミック強化材(14、16)を含有するセラミックマトリックス複合材本体を製造する段階であって、前記ケイ素合金がケイ素とホウ素の合金である段階と、次いで
固体の元素状ケイ素及び/又はケイ素合金を固体マトリックスから少なくとも部分的に除去し、場合により固体マトリックス中の残りの固体の元素状ケイ素及び/又はケイ素合金を反応させて少なくとも1つの耐熱性材料を形成することによって前記セラミックマトリックス複合材本体を処理する段階であって、固体の元素状ケイ素及び/又はケイ素合金は前記セラミックマトリックス複合材本体から除去されて、前記セラミックマトリックス複合材物品(10)が1405℃を超える温度に構造的及び化学的に耐えることができる段階と
を含んでいて、セラミック強化材(14、16)が0.5μm〜2μmの厚さの剥離層で被覆されている、方法。 - 前記セラミックマトリックス複合材本体が、
セラミック強化材(14、16)を含む多孔質プリフォーム中に溶融した元素状ケイ素及び/又はケイ素合金を溶浸させ、溶融した元素状ケイ素及び/又はケイ素合金の第1の部分を反応させてセラミックマトリックス材料(18)の少なくとも一部分を形成し、溶融した元素状ケイ素及び/又はケイ素合金の第2の部分をプリフォームの気孔に充填し、もって溶浸プリフォームを形成する段階と、次いで
溶浸したプリフォームを冷却して溶融した元素状ケイ素及び/又はケイ素合金の第2の部分を固化させて固体マトリックスの固体の元素状ケイ素及び/又はケイ素合金を形成すると共に前記セラミックマトリックス複合材本体を生成する
ことによって製造される、請求項1記載の方法。 - セラミック強化材(14、16)が炭化ケイ素繊維(16)を含む、請求項1又は請求項2記載の方法。
- セラミックマトリックス材料(18)が炭化ケイ素を含む、請求項1乃至請求項3のいずれか1項記載の方法。
- 固体の元素状ケイ素及び/又はケイ素合金を溶融させ、溶融した元素状ケイ素及び/又はケイ素合金を前記セラミックマトリックス複合材本体から引き出すことにより、固体の元素状ケイ素及び/又はケイ素合金を少なくとも部分的に固体マトリックスから除去する、請求項1乃至請求項4のいずれか1項記載の方法。
- 固体の元素状ケイ素及び/又はケイ素合金の気化により、固体の元素状ケイ素及び/又はケイ素合金を少なくとも部分的に固体マトリックスから除去する、請求項1乃至請求項4のいずれか1項記載の方法。
- 固体の元素状ケイ素及び/又はケイ素合金をエッチングすることにより、固体の元素状ケイ素及び/又はケイ素合金を少なくとも部分的に固体マトリックスから除去する、請求項1乃至請求項4のいずれか1項記載の方法。
- 固体の元素状ケイ素及び/又はケイ素合金を固体マトリックスから部分的に除去し、固体マトリックス中の残りの固体の元素状ケイ素及び/又はケイ素合金の少なくとも一部を反応させて少なくとも1種の耐熱性の材料を形成する、請求項7記載の方法。
- セラミックマトリックス複合材物品に気体を溶浸することによって固体マトリックス中の残りの固体の元素状ケイ素及び/又はケイ素合金の少なくとも一部を反応させる、請求項8記載の方法。
- セラミック強化材(14、16)上の剥離層を覆うバリヤー層を形成して、セラミックマトリックス複合材本体内で溶融した元素状ケイ素及び/又はケイ素合金が離型剤と反応するのを抑制することをさらに含む、請求項1記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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US12/433,090 US20100279845A1 (en) | 2009-04-30 | 2009-04-30 | Process of producing ceramic matrix composites |
US12/433,090 | 2009-04-30 |
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JP2010260785A JP2010260785A (ja) | 2010-11-18 |
JP5825761B2 true JP5825761B2 (ja) | 2015-12-02 |
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EP (1) | EP2248786A1 (ja) |
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US20130167374A1 (en) * | 2011-12-29 | 2013-07-04 | General Electric Company | Process of producing ceramic matrix composites and ceramic matrix composites formed thereby |
US20130287941A1 (en) * | 2012-04-27 | 2013-10-31 | General Electric Company | Method of producing a melt-infiltrated ceramic matrix composite article |
US10450235B2 (en) | 2012-04-27 | 2019-10-22 | General Electric Company | Method of producing an internal cavity in a ceramic matrix composite and mandrel therefor |
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JP2010260785A (ja) | 2010-11-18 |
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EP2248786A1 (en) | 2010-11-10 |
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