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Connecting method of ceramic matrix composite material
The invention discloses a connection method of a ceramic-based composite material, and relates to the technical field of ceramic materials. Comprising the following steps that a ceramic-based composite material and a ceramic-based composite material homogeneous material or a high-temperature alloy heterogeneous material serve as base materials, and alloy brazing filler metal powder with a low melting point is selected based on material genome engineering and a Calphad thermodynamic calculation method; an oxide sintering aid is added into the alloy brazing filler metal powder, brazing filler metal is obtained, the melting point of the brazing filler metal is lower than that of the base metal, and the brazing filler metal serves as a middle layer; carrying out bionic surface pretreatment on the base material to form a bionic micro-nano structure on the surface of the base material; spraying a coating which is chemically compatible with the base material on the bionic micro-nano structure to obtain a to-be-connected base material; and the to-be-connected base material and the middle layer are assembled and fixed, in-situ reaction connection is conducted, and the connecting joint is obtained. And the connection between the ceramic-based composite material and the ceramic-based composite material or the high-temperature alloy can be realized without a high-temperature and vacuum environment, the connection of a complex special-shaped structural member can also be realized, and the thermal shock resistance is improved.
本申请公开了一种陶瓷基复合材料的连接方法，涉及陶瓷材料技术领域。包括以下步骤：以陶瓷基复材与陶瓷基复材同质材料或高温合金异质材料作为母材，基于材料基因组工程和Calphad热力学计算方法，选择低熔点的合金钎料粉体；在合金钎料粉体中添加氧化物烧结助剂，获得钎料，使钎料的熔点比母材的熔点低，将钎料作为中间层；对母材进行仿生学表面预处理，使母材表面形成仿生微纳结构；在仿生微纳结构上喷涂与母材化学相容的涂料，得到待连接母材；将待连接母材与中间层装配固定并进行原位反应连接，得到连接接头。无需在高温、真空环境下就能实现陶瓷基复材与陶瓷基复材或高温合金的连接，还可实现复杂异形结构件的连接，提高抗热震性能。
Connecting method of ceramic matrix composite material
The invention discloses a connection method of a ceramic-based composite material, and relates to the technical field of ceramic materials. Comprising the following steps that a ceramic-based composite material and a ceramic-based composite material homogeneous material or a high-temperature alloy heterogeneous material serve as base materials, and alloy brazing filler metal powder with a low melting point is selected based on material genome engineering and a Calphad thermodynamic calculation method; an oxide sintering aid is added into the alloy brazing filler metal powder, brazing filler metal is obtained, the melting point of the brazing filler metal is lower than that of the base metal, and the brazing filler metal serves as a middle layer; carrying out bionic surface pretreatment on the base material to form a bionic micro-nano structure on the surface of the base material; spraying a coating which is chemically compatible with the base material on the bionic micro-nano structure to obtain a to-be-connected base material; and the to-be-connected base material and the middle layer are assembled and fixed, in-situ reaction connection is conducted, and the connecting joint is obtained. And the connection between the ceramic-based composite material and the ceramic-based composite material or the high-temperature alloy can be realized without a high-temperature and vacuum environment, the connection of a complex special-shaped structural member can also be realized, and the thermal shock resistance is improved.
本申请公开了一种陶瓷基复合材料的连接方法，涉及陶瓷材料技术领域。包括以下步骤：以陶瓷基复材与陶瓷基复材同质材料或高温合金异质材料作为母材，基于材料基因组工程和Calphad热力学计算方法，选择低熔点的合金钎料粉体；在合金钎料粉体中添加氧化物烧结助剂，获得钎料，使钎料的熔点比母材的熔点低，将钎料作为中间层；对母材进行仿生学表面预处理，使母材表面形成仿生微纳结构；在仿生微纳结构上喷涂与母材化学相容的涂料，得到待连接母材；将待连接母材与中间层装配固定并进行原位反应连接，得到连接接头。无需在高温、真空环境下就能实现陶瓷基复材与陶瓷基复材或高温合金的连接，还可实现复杂异形结构件的连接，提高抗热震性能。
Connecting method of ceramic matrix composite material
一种陶瓷基复合材料的连接方法
YANG HAITANG (author) / XU XIANGYU (author) / HE TAIJUN (author) / HUANG XIN (author)
2024-02-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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