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High-bonding-strength hafnium ultra-high-temperature ceramic coating and preparation method thereof
The invention relates to a hafnium ultra-high-temperature ceramic coating with high bonding strength and a preparation method thereof. The method comprises the following steps: providing a carbon fiber toughened hafnium tantalum carbon-silicon carbide ceramic-based composite material; the hafnium tantalum carbon-silicon carbide ceramic coating is prepared on the carbon fiber toughened hafnium tantalum carbon-silicon carbide ceramic-based composite material through a plasma spraying method by taking hafnium tantalum carbon-silicon carbide ceramic powder as spraying powder. And then rapid high-temperature sintering is carried out, and the hafnium-series ultra-high-temperature ceramic coating with high bonding strength is prepared on the carbon fiber toughened hafnium tantalum carbon-silicon carbide ceramic-based composite material. According to the method, the advantage of ultrahigh melting point of hafnium, tantalum and carbon is fully exerted, the hafnium, tantalum and carbon is deposited on the surface of the matrix in a plasma spraying mode, and the bonding strength of the coating and the matrix is obviously improved by means of a rapid high-temperature sintering technology, so that the problem that the coating and the C/HfTaC-SiC ceramic matrix composite material are poor in bonding strength and prone to peeling and failure is effectively solved.
本发明涉及一种高结合强度的铪系超高温陶瓷涂层及其制备方法。所述方法：提供碳纤维增韧铪钽碳‑碳化硅陶瓷基复合材料；以铪钽碳‑碳化硅陶瓷粉为喷涂粉末通过等离子喷涂法在碳纤维增韧铪钽碳‑碳化硅陶瓷基复合材料上制备得到铪钽碳‑碳化硅陶瓷涂层；再经快速高温烧结，在碳纤维增韧铪钽碳‑碳化硅陶瓷基复合材料上制得高结合强度的铪系超高温陶瓷涂层。本发明方法充分发挥铪钽碳超高熔点的优势，通过等离子喷涂方式沉积在基体表面，并借助快速高温烧结技术，明显提高涂层与基体的结合强度，从而有效解决了涂层与C/HfTaC‑SiC陶瓷基复合材料基体结合强度较差而易剥落失效的问题。
High-bonding-strength hafnium ultra-high-temperature ceramic coating and preparation method thereof
The invention relates to a hafnium ultra-high-temperature ceramic coating with high bonding strength and a preparation method thereof. The method comprises the following steps: providing a carbon fiber toughened hafnium tantalum carbon-silicon carbide ceramic-based composite material; the hafnium tantalum carbon-silicon carbide ceramic coating is prepared on the carbon fiber toughened hafnium tantalum carbon-silicon carbide ceramic-based composite material through a plasma spraying method by taking hafnium tantalum carbon-silicon carbide ceramic powder as spraying powder. And then rapid high-temperature sintering is carried out, and the hafnium-series ultra-high-temperature ceramic coating with high bonding strength is prepared on the carbon fiber toughened hafnium tantalum carbon-silicon carbide ceramic-based composite material. According to the method, the advantage of ultrahigh melting point of hafnium, tantalum and carbon is fully exerted, the hafnium, tantalum and carbon is deposited on the surface of the matrix in a plasma spraying mode, and the bonding strength of the coating and the matrix is obviously improved by means of a rapid high-temperature sintering technology, so that the problem that the coating and the C/HfTaC-SiC ceramic matrix composite material are poor in bonding strength and prone to peeling and failure is effectively solved.
本发明涉及一种高结合强度的铪系超高温陶瓷涂层及其制备方法。所述方法：提供碳纤维增韧铪钽碳‑碳化硅陶瓷基复合材料；以铪钽碳‑碳化硅陶瓷粉为喷涂粉末通过等离子喷涂法在碳纤维增韧铪钽碳‑碳化硅陶瓷基复合材料上制备得到铪钽碳‑碳化硅陶瓷涂层；再经快速高温烧结，在碳纤维增韧铪钽碳‑碳化硅陶瓷基复合材料上制得高结合强度的铪系超高温陶瓷涂层。本发明方法充分发挥铪钽碳超高熔点的优势，通过等离子喷涂方式沉积在基体表面，并借助快速高温烧结技术，明显提高涂层与基体的结合强度，从而有效解决了涂层与C/HfTaC‑SiC陶瓷基复合材料基体结合强度较差而易剥落失效的问题。
High-bonding-strength hafnium ultra-high-temperature ceramic coating and preparation method thereof
一种高结合强度的铪系超高温陶瓷涂层及其制备方法
YANG LIANGWEI (author) / SUN YANAN (author) / SONG HUANJUN (author) / CHEN HAORAN (author) / LI XIAODONG (author) / LIU WEI (author) / YU XINMIN (author) / SUN TONGCHEN (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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