JP6865554B2 - 高温性能に優れた物品 - Google Patents
高温性能に優れた物品 Download PDFInfo
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- JP6865554B2 JP6865554B2 JP2016189001A JP2016189001A JP6865554B2 JP 6865554 B2 JP6865554 B2 JP 6865554B2 JP 2016189001 A JP2016189001 A JP 2016189001A JP 2016189001 A JP2016189001 A JP 2016189001A JP 6865554 B2 JP6865554 B2 JP 6865554B2
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Description
いてさらなる処理(例えば、ホウ素含有前駆体への暴露)を実施してもよい。
[実施態様1]
ケイ素含有材料を含む基板(12)と、
基板(12)の上に設けられた耐環境コーティング(EBC)(16)と、
基板(12)とEBC(16)との間に設けられたボンドコート(14)であって、ケイ素を含むボンドコート(14)と、
ボンドコート(14)が900℃超の温度で酸化環境に暴露されているときにケイ素及び0.1重量%以上のホウ素を含む酸化物(18)を形成するのに有効な量のホウ素を供給するように設けられたホウ素源(20)と
を含む物品(10)。
[実施態様2]
酸化物(18)は約0.5重量%以上のホウ素を含む、実施態様1に記載の物品(10)。
[実施態様3]
酸化物(18)は約10重量%以下のホウ素を含む、実施態様1に記載の物品(10)。
[実施態様4]
酸化物(18)は実質的に非晶質かつ実質的に耐失透性である、実施態様1に記載の物品(10)。
[実施態様5]
酸化物(18)はボンドコート(14)とEBC(16)との間に設けられる、実施態様1に記載の物品(10)。
[実施態様6]
ボンドコート(14)はホウ素源(20)を含む、実施態様1に記載の物品(10)。
[実施態様7]
基板(12)、EBC(16)又はその両方がホウ素源(20)を含む、実施態様1に記載の物品(10)。
[実施態様8]
ホウ素源(20)はケイ素固溶体中に元素態ホウ素を含む、実施態様1に記載の物品(10)。
[実施態様9]
ホウ素源(20)は含ホウ素化合物を含む、実施態様1に記載の物品(10)。
[実施態様10]
EBC(16)はボンドコート(14)に近接した多孔層(430)を含む、実施態様1に記載の物品(10)。
[実施態様11]
EBC(16)は気密層(540)を含む、実施態様1に記載の物品(10)。
[実施態様12]
EBC(16)はホウ素源(20)を含む、実施態様11に記載の物品(10)。
[実施態様13]
ホウ素源(20)の少なくとも一部はボンドコート(14)の少なくとも一部とEBC(16)の少なくとも一部との間に挟持される、実施態様1に記載の物品(10)。
[実施態様14]
ホウ素源(20)の少なくとも別の一部は、基板(12)、EBC(16)、ボンドコート(14)又はこれらのいずれかを含む組合せの内部に設けられる、実施態様13に記載の物品(10)。
[実施態様15]
EBC(16)とボンドコート(14)との間に設けられた酸化物の層(18)であって、ケイ素及び約0.1重量%以上のホウ素を含む酸化物の層(18)をさらに含む、実施態様1に記載の物品(10)。
[実施態様16]
基板(12)のケイ素含有材料はセラミックマトリックス複合材料(CMC)である、実施態様1に記載の物品(10)。
[実施態様17]
ケイ素含有材料を含む基板(12)と、
基板(12)の上に設けられた耐環境コーティング(EBC)(16)と、
基板(12)とEBC(16)との間に設けられたボンドコート(14)であって、ケイ素を含むボンドコート(14)と、
ケイ素及び0.1重量%以上のホウ素を含む、ボンドコート(14)に隣接する酸化物(18)と、
を備えた物品(10)。
[実施態様18]
酸化物(18)は少なくとも0.5重量%のホウ素をさらに含む、実施態様17に記載の物品(10)。
[実施態様19]
酸化物(18)は実質的に非晶質かつ耐失透性である、実施態様17に記載の物品(10)。
[実施態様20]
ボンドコート(14)が900℃超の温度で酸化環境に暴露されているときに酸化物(18)に対してホウ素を供給するように設けられたホウ素源(20)をさらに含む、実施態様17に記載の物品(10)。
[実施態様21]
ボンドコート(14)はホウ素源(20)を含む、実施態様20に記載の物品(10)。
[実施態様22]
基板(12)、EBC(16)又はその両方がホウ素源(20)を含む、実施態様20に記載の物品(10)。
[実施態様23]
ケイ素を含むボンドコート(14)をケイ素含有基板(12)上に設ける工程と、
ボンドコート(14)上に耐環境コーティング(EBC)(16)を設ける工程と、
ボンドコート(14)が900℃超の温度で酸化環境に暴露されているときにケイ素及び0.1重量%以上のホウ素を含む酸化物(18)を形成するのに有効な量のホウ素を供給するように設けられたホウ素源(20)を提供する工程と、
を含む、構成部品の製造方法。
[実施態様24]
ケイ素及び0.1重量%以上のホウ素を含む酸化物(18)を形成するためにボンドコート(14)を酸化環境中で加熱する工程をさらに含む、実施態様23に記載の方法。
[実施態様25]
酸化物(18)は約0.5重量%以上のホウ素を含む、実施態様23に記載の方法。
[実施態様26]
酸化物(18)は約10重量%以下のホウ素を含む、実施態様23に記載の方法。
[実施態様27]
酸化物(18)は実質的に非晶質かつ耐失透性である、実施態様23に記載の方法。
[実施態様28]
ボンドコート(14)はホウ素源(20)を含む、実施態様23に記載の方法。
[実施態様29]
基板(12)、EBC(16)又はその両方がホウ素源(20)を含む、実施態様23に記載の方法。
[実施態様30]
基板(12)のケイ素含有材料はセラミックマトリックス複合材料(CMC)である、実施態様23に記載の方法。
[実施態様31]
ホウ素源(20)は酸化物(18)の形成中に気体副産物を生成し、ボンドコート(14)上にEBC(16)を設ける工程は、ボンドコート(14)に近接する多孔層(430)を形成する工程を含み、それによって気体副産物が多孔層中を移動できるようにする、実施態様23に記載の方法。
[実施態様32]
ボンドコート(14)上にEBC(16)を設ける工程は、ホウ素を含有する気体副産物がその形成中に酸化物(18)から流出するのを防止する気密層(540)を形成する工程を含む、実施態様23に記載の方法。
[実施態様33]
ホウ素源(20)を提供する工程は、ボンドコート(14)の少なくとも一部とEBC(16)の少なくとも一部との間に挟持される中間層(650)の内部にホウ素源(20)の少なくとも一部を提供する工程を含む、実施態様23に記載の方法。
[実施態様34]
基板(12)、EBC(16)、及びボンドコート(14)の一以上の内部にホウ素源(20)の少なくとも一部を提供する工程をさらに含む、実施態様33に記載の方法。
12、112、212、412、612 基板
14、114、314、414、614ボンドコート
16、116、216、416、516、616 耐環境コーティング(EBC)
18 酸化物層
20、120、220、320、420、520、620 ホウ素源
214 ボンドコート、接着層
312 ケイ素含有CMC基板、セラミック基板
430 多孔層
540 気密層
650 中間層
Claims (13)
- ケイ素含有材料を含む基板と、
基板の上に設けられた耐環境コーティング(EBC)と、
基板とEBCとの間に設けられたボンドコートであって、ケイ素を含むボンドコートと、
ボンドコートが900℃超の温度で酸化環境に暴露されているときにケイ素及び0.1重量%以上のホウ素を含む酸化物を形成するのに有効な量のホウ素を供給するように設けられたホウ素源と
を含み、
前記ボンドコートまたは前記EBCが前記ホウ素源を含む、物品。 - 酸化物が0.5重量%以上のホウ素を含む、請求項1に記載の物品。
- 酸化物が10重量%以下のホウ素を含む、請求項1に記載の物品。
- 酸化物が実質的に非晶質かつ実質的に耐失透性である、請求項1に記載の物品。
- 酸化物がボンドコートとEBCとの間に設けられる、請求項1に記載の物品。
- 基板、EBC又はその両方が前記ホウ素源を含む、請求項1に記載の物品。
- 前記ホウ素源がケイ素固溶体中に元素態ホウ素を含む、請求項1に記載の物品。
- 前記ホウ素源が含ホウ素化合物を含む、請求項1に記載の物品。
- EBCがボンドコートに近接した多孔層及び気密層の少なくとも一つを含む、請求項1に記載の物品。
- ホウ素源の少なくとも一部がボンドコートの少なくとも一部とEBCの少なくとも一部との間に挟持される、請求項1に記載の物品。
- ホウ素源の少なくとも別の一部が、基板、EBC、ボンドコート又はこれらのいずれかを含む組合せの内部に設けられる、請求項10に記載の物品。
- EBCとボンドコートとの間に設けられた酸化物の層であって、ケイ素及び0.1重量%以上のホウ素を含む酸化物の層をさらに含む、請求項1に記載の物品。
- 基板のケイ素含有材料がセラミックマトリックス複合材料(CMC)である、請求項1に記載の物品。
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| CA3036969C (en) * | 2016-09-16 | 2022-05-31 | General Electric Company | Silicon compositions containing boron and methods of forming the same |
| US11066339B2 (en) * | 2017-06-08 | 2021-07-20 | General Electric Company | Article for high temperature service |
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| US11203942B2 (en) | 2018-03-14 | 2021-12-21 | Raytheon Technologies Corporation | Wear resistant airfoil tip |
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| FR3107905B1 (fr) | 2020-03-03 | 2022-01-28 | Safran Ceram | Procédé de revêtement d’une pièce en matériau composite à matrice céramique par une barrière environnementale |
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| US11845701B2 (en) * | 2020-07-21 | 2023-12-19 | Rolls-Royce Corporation | EBC layer containing boron |
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