Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bonding layer for environmental barrier coating and application
The invention discloses a bonding layer for an environmental barrier coating and application, and belongs to the technical field of coatings. By optimizing the plasma spraying technology, an HfC or Y2O3 ceramic phase is added into Si, and the bonding layer is a mixture layer of Si and HfC or a mixture layer of Si and Y2O3; after water and oxygen corrosion, a protection layer with a three-layer structure is formed on the surface of the Si and HfC mixture layer, the upper layer and the lower layer are spinel layers mainly containing SiO2 and HfC, the middle layer is a spinel layer mainly containing HfC and SiO2, and a SiO2 layer and a Y2O3 layer on the surface of the SiO2 layer are generated on the surface of the Si and Y2O3 mixture layer. Therefore, the HfC or Y2O3 ceramic phase can form a protective layer on the surface to prevent water vapor from further reacting with SiO2, so that the bonding layer is protected, and the service life of the bonding layer is further prolonged.
本发明公开一种用于环境障碍涂层的粘接层及应用，属于涂层技术领域。本发明通过优化等离子喷涂技术，在Si中分别添加HfC或Y2O3陶瓷相，粘接层成分为Si和HfC的混合物层或Si和Y2O3混合物层；通过水氧腐蚀后，所述Si和HfC混合物层表面形成三层结构的保护层，上下两层为以SiO2为主，含有HfC的尖晶石层，中间层为HfC为主，含有SiO2的尖晶石层，所述Si和Y2O3混合物层表面生成SiO2层和在SiO2层表面的Y2O3层。因此，HfC或Y2O3陶瓷相均会在表面形成一层保护层，阻止水蒸气进一步与SiO2发生反应，从而保护粘结层，进一步提高粘结层的使用寿命。
Bonding layer for environmental barrier coating and application
The invention discloses a bonding layer for an environmental barrier coating and application, and belongs to the technical field of coatings. By optimizing the plasma spraying technology, an HfC or Y2O3 ceramic phase is added into Si, and the bonding layer is a mixture layer of Si and HfC or a mixture layer of Si and Y2O3; after water and oxygen corrosion, a protection layer with a three-layer structure is formed on the surface of the Si and HfC mixture layer, the upper layer and the lower layer are spinel layers mainly containing SiO2 and HfC, the middle layer is a spinel layer mainly containing HfC and SiO2, and a SiO2 layer and a Y2O3 layer on the surface of the SiO2 layer are generated on the surface of the Si and Y2O3 mixture layer. Therefore, the HfC or Y2O3 ceramic phase can form a protective layer on the surface to prevent water vapor from further reacting with SiO2, so that the bonding layer is protected, and the service life of the bonding layer is further prolonged.
本发明公开一种用于环境障碍涂层的粘接层及应用，属于涂层技术领域。本发明通过优化等离子喷涂技术，在Si中分别添加HfC或Y2O3陶瓷相，粘接层成分为Si和HfC的混合物层或Si和Y2O3混合物层；通过水氧腐蚀后，所述Si和HfC混合物层表面形成三层结构的保护层，上下两层为以SiO2为主，含有HfC的尖晶石层，中间层为HfC为主，含有SiO2的尖晶石层，所述Si和Y2O3混合物层表面生成SiO2层和在SiO2层表面的Y2O3层。因此，HfC或Y2O3陶瓷相均会在表面形成一层保护层，阻止水蒸气进一步与SiO2发生反应，从而保护粘结层，进一步提高粘结层的使用寿命。
Bonding layer for environmental barrier coating and application
一种用于环境障碍涂层的粘接层及应用
SONG PENG (Autor:in) / YANG ZHENNAN (Autor:in) / KONG DEHAO (Autor:in) / HUANG TAIHONG (Autor:in) / LI QING (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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