WO2010116568A1 - 遮熱コーティング用材料、遮熱コーティング、タービン部材及びガスタービン - Google Patents
遮熱コーティング用材料、遮熱コーティング、タービン部材及びガスタービン Download PDFInfo
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Abstract
Description
前記Sm2O3の含有量は、1.0mol%以上2.0mol%以下がより好ましい。
Zr(ジルコニウム)が、原子量の異なるYb及びSm(サマリウム)を含有することにより、格子ミスマッチが導入され結晶構造を複雑にする。これにより熱散乱が生じやすくなり、熱伝導率を低減する効果を奏する。
係る構成のタービン部材によれば、優れた高温結晶安定性及び熱サイクル耐久性を備えたタービン部材とすることができる。これにより、より信頼性に優れたガスタービンを構成することができる。
図1は、本実施形態に係る遮熱コーティング用材料を適用したタービン部材の部分断面模式図である。タービン動翼などの耐熱合金基材11上に、遮熱コーティングとして金属結合層12及びセラミックス層13が順に形成される。
(実施例1)
表1に示す各組成の焼結体を、常圧焼結法にて焼結温度1600℃、焼結時間5時間の条件で作製した。原料粉末にはYb2O3、Sm2O3、ZrO2を用いた。
各組成の焼結体の破壊靭性値を、JIS R 1607に基づいて測定した。熱伝導率を、JIS R 1611で規定されるレーザーフラッシュ法に基づいて測定した。1300℃、1000時間の加熱処理前後の焼結体の構成相を、粉末X線回析により同定した。
Y2O3:8mol%を添加したZrO2を用い、実施例1と同じ条件で焼結体を作製した。
実施例1と同様にして、焼結体の破壊靭性、及び、熱伝導率を測定した。また、加熱処理前後の構成相を実施例1と同様に同定した。
成膜後の構成相は、いずれも準安定正方晶であった。試料番号1~4(Yb2O3:4.45~2.3mol%、Sm2O3:0.05~2.2mol%)の焼結体は、加熱処理後の構成相に変化はみられなかった。一方、比較例と試料番号5及び6(Yb2O3:0.1及び0.05mol%、Sm2O3:4.4及び4.45mol%)の焼結体は、加熱処理により相変態が生じ、構成相は立方晶+単斜晶であった。
試料番号1~4の焼結体は、比較例1(破壊靭性値:4MPa・m0.5)よりも高い破壊靭性値が得られた。一方、試料番号5及び6では、比較例1よりも破壊靭性が低い値を示した。
試料番号1では、Yよりもイオン半径が小さく、高温での結晶安定性が高いYbを含むYb2O3を多く添加したため、比較例1よりも高い破壊靭性値が得られた。一方、Sm2O3の添加量増加に依存して破壊靭性値が低下した。これは、YよりもSmのイオン半径が大きいためだと考えられる。
試料番号1~6の焼結体の熱伝導率は、比較例1の焼結体の熱伝導率より低く、Sm2O3の含有量に依存して減少した。Yb2O3及びSm2O3を含有することで、比較例の熱伝導率より低い熱伝導率となることが示された。
スプレードライ法を用いて、粒径10~125μmの表1に示す各組成物の溶射粉末を製造した。上記溶射粉末を用いて、以下の方法により遮熱コーティングを形成した試験片を作製した。
試験片の熱サイクル耐久性をレーザー熱サイクル試験により測定した。試験条件は、遮熱コーティングの最高表面加熱温度:1400℃、最高界面温度:950℃、加熱時間3分、冷却時間3分とし、セラミックス層剥離までの熱サイクル数を計測した。
また、実施例2と同様にして、表1の組成の遮熱コーティング用材料を溶射成膜し、試験片を作製した。
実施例1と同様にして、溶射皮膜の熱伝導率、加熱処理前後の気孔率及び構成相、試験片の熱サイクル耐久性を測定した。
12 金属結合層
13 セラミックス層
Claims (4)
- 安定化剤としてYb2O3及びSm2O3を含有するZrO2を主とし、
前記安定化剤の含有量が2mol%以上7mol%以下であり、
前記Sm2O3の含有量が、0.1mol%以上2.5mol%以下である遮熱コーティング用材料。 - 耐熱合金基材上に、金属結合層と、該金属結合層上に形成された請求項1に記載の遮熱コーティング用材料からなるセラミックス層と、を備える遮熱コーティング。
- 請求項2に記載の遮熱コーティングを備えるタービン部材。
- 請求項3に記載のタービン部材を備えるガスタービン。
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US13/125,897 US20110262770A1 (en) | 2009-03-30 | 2009-11-27 | Thermal barrier coating material, thermal barrier coating, turbine member, and gas turbine |
CN2009801411802A CN102187013B (zh) | 2009-03-30 | 2009-11-27 | 隔热涂层用材料、隔热涂层、涡轮部材及燃气轮机 |
EP09843073.9A EP2415903A4 (en) | 2009-03-30 | 2009-11-27 | THERMAL BARRIER COATING MATERIAL, THERMAL BARRIER COATING, TURBINE ELEMENT AND GAS TURBINE |
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JP2009083362A JP5285486B2 (ja) | 2009-03-30 | 2009-03-30 | 遮熱コーティング用材料、遮熱コーティング、タービン部材及びガスタービン |
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CN103290352A (zh) * | 2013-06-18 | 2013-09-11 | 张关莲 | 一种喷涂法制备氧化锆热障涂层的方法 |
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BR112015019352B1 (pt) * | 2013-02-13 | 2021-05-04 | Ceramtec Gmbh | material de óxido de zircônio e uso do mesmo |
US11479846B2 (en) | 2014-01-07 | 2022-10-25 | Honeywell International Inc. | Thermal barrier coatings for turbine engine components |
RU2695245C2 (ru) * | 2014-04-09 | 2019-07-22 | Нуово Пиньоне СРЛ | Способ защиты компонента турбомашины от эрозии при воздействии капель жидкости, компонент и турбомашина |
DE112015004056T5 (de) | 2014-09-05 | 2017-06-14 | Mitsubishi Hitachi Power Systems, Ltd. | Verfahren zur herstellung von thermischem spritzpulver, vorrichtung zur herstellung von thermischem spritzpulver, unter verwendung des herstellungsverfahrens erzeugtes thermisches spritzpulver, mit einer wärmedämmschicht beschichtete hochtemperaturkomponente, und die hochtemperaturkomponente umfassende gasturbine |
Citations (7)
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JP2001348655A (ja) | 2000-06-09 | 2001-12-18 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材、それを適用したガスタービン部材およびガスタービン |
JP2003129210A (ja) | 2001-10-24 | 2003-05-08 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材及びガスタービン部材並びにガスタービン |
JP2003160852A (ja) | 2001-11-26 | 2003-06-06 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材、その製造方法、タービン部材及びガスタービン |
JP2005163172A (ja) * | 2000-06-16 | 2005-06-23 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材、遮熱コーティング材を適用したガスタービン部材およびガスタービン |
JP2005206450A (ja) * | 2003-12-30 | 2005-08-04 | General Electric Co <Ge> | 低熱伝導率の遮熱コーティング用セラミック組成物 |
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JP2007270245A (ja) | 2006-03-31 | 2007-10-18 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング部材及びその製造方法ならびに遮熱コート材料、ガスタービン及び焼結体 |
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WO2005017226A1 (en) * | 2003-01-10 | 2005-02-24 | University Of Connecticut | Coatings, materials, articles, and methods of making thereof |
US7255940B2 (en) * | 2004-07-26 | 2007-08-14 | General Electric Company | Thermal barrier coatings with high fracture toughness underlayer for improved impact resistance |
US7166373B2 (en) * | 2004-08-19 | 2007-01-23 | General Electric Company | Ceramic compositions for thermal barrier coatings with improved mechanical properties |
EP1674663B1 (en) * | 2004-12-14 | 2010-06-02 | Mitsubishi Heavy Industries, Ltd. | A Member coated with a thermal barrier coating and its method of manufacture. |
US20070292624A1 (en) * | 2005-06-28 | 2007-12-20 | General Electric Company | Low conductivity, thermal barrier coating system for ceramic matrix composite (CMC) articles |
US7507484B2 (en) * | 2006-12-01 | 2009-03-24 | Siemens Energy, Inc. | Bond coat compositions and arrangements of same capable of self healing |
US20090184280A1 (en) * | 2008-01-18 | 2009-07-23 | Rolls-Royce Corp. | Low Thermal Conductivity, CMAS-Resistant Thermal Barrier Coatings |
US8047771B2 (en) * | 2008-11-17 | 2011-11-01 | Honeywell International Inc. | Turbine nozzles and methods of manufacturing the same |
US8470460B2 (en) * | 2008-11-25 | 2013-06-25 | Rolls-Royce Corporation | Multilayer thermal barrier coatings |
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- 2009-11-27 WO PCT/JP2009/070024 patent/WO2010116568A1/ja active Application Filing
- 2009-11-27 US US13/125,897 patent/US20110262770A1/en not_active Abandoned
- 2009-11-27 EP EP09843073.9A patent/EP2415903A4/en not_active Withdrawn
- 2009-11-27 CN CN2009801411802A patent/CN102187013B/zh active Active
- 2009-11-27 KR KR1020117008968A patent/KR20110066186A/ko not_active Application Discontinuation
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JP2001348655A (ja) | 2000-06-09 | 2001-12-18 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材、それを適用したガスタービン部材およびガスタービン |
JP2005163172A (ja) * | 2000-06-16 | 2005-06-23 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材、遮熱コーティング材を適用したガスタービン部材およびガスタービン |
JP2003129210A (ja) | 2001-10-24 | 2003-05-08 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材及びガスタービン部材並びにガスタービン |
JP2003160852A (ja) | 2001-11-26 | 2003-06-06 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材、その製造方法、タービン部材及びガスタービン |
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JP2007270245A (ja) | 2006-03-31 | 2007-10-18 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング部材及びその製造方法ならびに遮熱コート材料、ガスタービン及び焼結体 |
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CN103290352A (zh) * | 2013-06-18 | 2013-09-11 | 张关莲 | 一种喷涂法制备氧化锆热障涂层的方法 |
CN103290352B (zh) * | 2013-06-18 | 2015-09-09 | 广西旭腾实业集团有限公司 | 一种喷涂法制备氧化锆热障涂层的方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20110066186A (ko) | 2011-06-16 |
JP5285486B2 (ja) | 2013-09-11 |
JP2010235983A (ja) | 2010-10-21 |
EP2415903A4 (en) | 2015-02-18 |
US20110262770A1 (en) | 2011-10-27 |
EP2415903A1 (en) | 2012-02-08 |
CN102187013A (zh) | 2011-09-14 |
CN102187013B (zh) | 2013-04-17 |
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