Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-bonding-strength oxidation-ablation-resistant composite coating for ceramic-based composite material and preparation method of high-bonding-strength oxidation-ablation-resistant composite coating
The invention relates to a high-bonding-strength oxidation-ablation-resistant composite coating for a ceramic-based composite material and a preparation method of the high-bonding-strength oxidation-ablation-resistant composite coating. The high-bonding-strength oxidation-ablation-resistant composite coating sequentially comprises a superhigh-temperature ceramic bottom layer coating reinforced by a layer shell coated chopped carbon fiber and a superhigh-temperature ceramic surface layer coating reinforced by a layer shell coated chopped silicon carbide fiber from the ceramic-based composite material to the outside. The method comprises the following steps: pretreating the ceramic-based composite material; the preparation method comprises the following steps: sequentially preparing a shell-coated short carbon fiber reinforced superhigh-temperature ceramic bottom layer coating and a shell-coated short silicon carbide fiber reinforced superhigh-temperature ceramic surface layer coating on the surface of a pretreated ceramic-based composite material through a low-pressure plasma spraying method, so as to prepare the high-bonding-strength oxidation-ablation-resistant composite coating. The prepared composite coating is low in porosity, high in bonding strength and excellent in high-temperature oxidation ablation resistance, and the high-temperature protective coating for the ceramic-based composite material can be prepared with high efficiency and low cost.
本发明涉及一种用于陶瓷基复合材料的高结合强度抗氧化烧蚀复合涂层及其制备方法。所述高结合强度抗氧化烧蚀复合涂层自陶瓷基复合材料向外依次包括层壳包覆短切碳纤维增强的超高温陶瓷底层涂层和层壳包覆短切碳化硅纤维增强的超高温陶瓷面层涂层。所述方法为：对陶瓷基复合材料预处理；通过低压等离子喷涂法在预处理的陶瓷基复合材料表面依次制备层壳包覆短切碳纤维增强的超高温陶瓷底层涂层和层壳包覆短切碳化硅纤维增强的超高温陶瓷面层涂层，制得高结合强度抗氧化烧蚀复合涂层。本发明制得的复合涂层孔隙率低、结合强度高、抗高温氧化烧蚀性能优异，本发明能够以较高效率和较低成本制备用于陶瓷基复合材料的高温防护涂层。
High-bonding-strength oxidation-ablation-resistant composite coating for ceramic-based composite material and preparation method of high-bonding-strength oxidation-ablation-resistant composite coating
The invention relates to a high-bonding-strength oxidation-ablation-resistant composite coating for a ceramic-based composite material and a preparation method of the high-bonding-strength oxidation-ablation-resistant composite coating. The high-bonding-strength oxidation-ablation-resistant composite coating sequentially comprises a superhigh-temperature ceramic bottom layer coating reinforced by a layer shell coated chopped carbon fiber and a superhigh-temperature ceramic surface layer coating reinforced by a layer shell coated chopped silicon carbide fiber from the ceramic-based composite material to the outside. The method comprises the following steps: pretreating the ceramic-based composite material; the preparation method comprises the following steps: sequentially preparing a shell-coated short carbon fiber reinforced superhigh-temperature ceramic bottom layer coating and a shell-coated short silicon carbide fiber reinforced superhigh-temperature ceramic surface layer coating on the surface of a pretreated ceramic-based composite material through a low-pressure plasma spraying method, so as to prepare the high-bonding-strength oxidation-ablation-resistant composite coating. The prepared composite coating is low in porosity, high in bonding strength and excellent in high-temperature oxidation ablation resistance, and the high-temperature protective coating for the ceramic-based composite material can be prepared with high efficiency and low cost.
本发明涉及一种用于陶瓷基复合材料的高结合强度抗氧化烧蚀复合涂层及其制备方法。所述高结合强度抗氧化烧蚀复合涂层自陶瓷基复合材料向外依次包括层壳包覆短切碳纤维增强的超高温陶瓷底层涂层和层壳包覆短切碳化硅纤维增强的超高温陶瓷面层涂层。所述方法为：对陶瓷基复合材料预处理；通过低压等离子喷涂法在预处理的陶瓷基复合材料表面依次制备层壳包覆短切碳纤维增强的超高温陶瓷底层涂层和层壳包覆短切碳化硅纤维增强的超高温陶瓷面层涂层，制得高结合强度抗氧化烧蚀复合涂层。本发明制得的复合涂层孔隙率低、结合强度高、抗高温氧化烧蚀性能优异，本发明能够以较高效率和较低成本制备用于陶瓷基复合材料的高温防护涂层。
High-bonding-strength oxidation-ablation-resistant composite coating for ceramic-based composite material and preparation method of high-bonding-strength oxidation-ablation-resistant composite coating
一种用于陶瓷基复合材料的高结合强度抗氧化烧蚀复合涂层及其制备方法
LI JIMENG (Autor:in) / LIU PENGCHENG (Autor:in) / KONG DELI (Autor:in) / YAN DAN (Autor:in) / QIU MEILING (Autor:in) / YANG LIANGWEI (Autor:in) / LI XIAODONG (Autor:in) / LIU WEI (Autor:in) / YU XINMIN (Autor:in) / LIU JUNPENG (Autor:in)
26.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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