JP2015508382A - セラミックマトリックス複合材を製造する方法およびそれによって形成されたセラミックマトリックス複合材 - Google Patents
セラミックマトリックス複合材を製造する方法およびそれによって形成されたセラミックマトリックス複合材 Download PDFInfo
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- JP2015508382A JP2015508382A JP2014550314A JP2014550314A JP2015508382A JP 2015508382 A JP2015508382 A JP 2015508382A JP 2014550314 A JP2014550314 A JP 2014550314A JP 2014550314 A JP2014550314 A JP 2014550314A JP 2015508382 A JP2015508382 A JP 2015508382A
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Abstract
Description
12 薄層
14 強化材、トウ
16 繊維
18 セラミックマトリックス
Claims (21)
- 1つまたは複数の被覆層を炭化ケイ素繊維上に堆積させるステップと、
前記被覆炭化ケイ素繊維を、スラリーを通して引いてスラリー被覆繊維材料を得るステップと、
前記スラリー被覆繊維材料から一方向プリプレグテープを製造するステップと、
前記テープを積み重ねてプリフォームを形成するステップと、
前記プリフォームを焼成して多孔質焼成プリフォームを得るステップと、
次いで、前記多孔質焼成プリフォームを、その中の気孔を溶浸することにより高密度化してCMC物品を得るステップと
を含む、ケイ素含有CMC物品を製造する方法。 - 前記スラリーの組成が約1430℃〜約1460℃の温度での前記プリフォームの焼成中に反応するケイ素元素とカーボンブラックの約1:1の化学量論的混合物を含む、請求項1に記載の方法。
- 前記スラリーの組成が前記焼成ステップ中に熱分解して炭素チャーのネットワークを形成する1種または複数の有機バインダーを含む、請求項1に記載の方法。
- 前記スラリーの組成が1種または複数の耐火性材料を含む、請求項1に記載の方法。
- 前記耐火性材料の組成がモリブデン、ケイ化モリブデン(Mo5Si3)、炭化モリブデン、窒化モリブデン、タンタル、炭化タンタル、ケイ化タンタル、窒化タンタル、ニオブ、炭化ニオブ、ケイ化ニオブ、窒化ニオブおよびこれらの組み合わせからなる群から選択される、請求項4に記載の方法。
- 前記高密度化ステップの前に前記多孔質焼成プリフォーム内の残留ケイ素元素および/または低融点ケイ素合金相を抽出するステップをさらに含む、請求項1に記載の方法。
- 前記残留ケイ素元素および/または低融点ケイ素合金相が粉末パック抽出法を使用して抽出される、請求項6に記載の方法。
- 前記粉末パック抽出法がモリブデン、タングステン、タンタル、ニオブ金属およびケイ化ニオブからなる群から選択される多孔質材料を用いて行われる、請求項7に記載の方法。
- 前記残留ケイ素元素および/または低融点ケイ素合金相が液相抽出法を使用して抽出される、請求項6に記載の方法。
- 前記残留ケイ素元素および/または低融点ケイ素合金相が気化法を使用して抽出される、請求項6に記載の方法。
- 一連のポリマー含浸熱分解ステップ、ケイ素元素および/または1種もしくは複数のケイ素合金を用いた溶融含浸、化学蒸気浸透、あるいはこれらの組み合わせを使用して前記多孔質焼成プリフォームを溶浸することにより前記多孔質焼成プリフォームを高密度化するステップをさらに含む、請求項6に記載の方法。
- 前記高密度化ステップの前に前記多孔質焼成プリフォームを熱処理して前記多孔質焼成プリフォームの孔チャネル中の汚染物質を除去するステップをさらに含む、請求項1に記載の方法。
- 前記高密度化ステップが、一連のポリマー含浸熱分解ステップ、ケイ素元素および/または1種もしくは複数のケイ素合金を用いた溶融含浸、化学蒸気浸透、あるいはこれらの組み合わせを使用して前記多孔質焼成プリフォームを溶浸することを含む、請求項1に記載の方法。
- 前記高密度化ステップが、加熱分解すると、炭化ケイ素、窒化ケイ素、オキシ炭化ケイ素、オキシ窒化ケイ素、炭窒化ケイ素、オキシ炭窒化ケイ素およびこれらの組み合わせからなる群から選択されるセラミックを形成するポリマー前駆体を含む一連のポリマー含浸熱分解ステップを含む、請求項13に記載の方法。
- 前記CMC物品をガスタービンエンジンに設置するステップと、前記CMC物品を少なくとも約1480℃の温度に供するステップとをさらに含む、請求項1に記載の方法。
- 請求項1に記載の方法により形成されたCMC物品。
- 被覆炭化ケイ素繊維で強化されたセラミックマトリックス(18)を含むCMC物品であって、前記セラミックマトリックス(18)は、少なくとも90体積%のケイ素系耐火性化合物、最大5体積%までの気孔、ならびに最大5体積%までのケイ素元素、ケイ素合金、ケイ素系化合物およびこれらの組み合わせからなる群から選択される1種または複数の低融点相を含むCMC物品。
- 前記ケイ素系耐火性化合物が、炭素、窒素、酸素、モリブデン、タングステン、タンタル、ニオブおよびこれらの混合物が配合されたケイ素からなる群から選択される、請求項17に記載のCMC物品。
- 前記セラミックマトリックス(18)が5体積%未満の低融点相と気孔の和を含有する、請求項17に記載のCMC物品。
- 前記セラミックマトリックス(18)が5体積%未満の気孔を含有し、低融点相を本質的に含まない、請求項17に記載のCMC物品。
- ガスタービンエンジンの部品である、請求項17に記載のCMC物品。
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US201161581129P | 2011-12-29 | 2011-12-29 | |
US61/581,129 | 2011-12-29 | ||
US13/685,038 US20130167374A1 (en) | 2011-12-29 | 2012-11-26 | Process of producing ceramic matrix composites and ceramic matrix composites formed thereby |
US13/685,038 | 2012-11-26 | ||
PCT/US2012/068329 WO2013103469A2 (en) | 2011-12-29 | 2012-12-07 | Process of producing ceramic matrix composites and ceramic matrix composites formed thereby |
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JP2015508382A true JP2015508382A (ja) | 2015-03-19 |
JP6411894B2 JP6411894B2 (ja) | 2018-10-24 |
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US (1) | US20130167374A1 (ja) |
EP (1) | EP2797852B1 (ja) |
JP (1) | JP6411894B2 (ja) |
CN (1) | CN104010992A (ja) |
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WO (1) | WO2013103469A2 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016196395A (ja) * | 2015-02-26 | 2016-11-24 | ゼネラル・エレクトリック・カンパニイ | セラミックマトリックス複合材物品及びそれを形成する方法 |
JP2017024978A (ja) * | 2015-07-13 | 2017-02-02 | ロールス−ロイス ハイ テンプレチャー コンポジッツ,インコーポレイティド | セラミックマトリックス複合材物品の製造方法 |
JP2017171568A (ja) * | 2016-03-23 | 2017-09-28 | ゼネラル・エレクトリック・カンパニイ | 単峰性細孔径分布及び低繊維体積分率を有するセラミックマトリックス複合材 |
JP2018179000A (ja) * | 2017-04-05 | 2018-11-15 | ゼネラル・エレクトリック・カンパニイ | Cmc物品を形成するための方法 |
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CA2860140A1 (en) | 2013-07-11 |
EP2797852B1 (en) | 2019-07-31 |
EP2797852A2 (en) | 2014-11-05 |
WO2013103469A2 (en) | 2013-07-11 |
BR112014015738A8 (pt) | 2017-07-04 |
CN104010992A (zh) | 2014-08-27 |
WO2013103469A3 (en) | 2013-12-19 |
BR112014015738A2 (pt) | 2017-06-13 |
JP6411894B2 (ja) | 2018-10-24 |
US20130167374A1 (en) | 2013-07-04 |
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