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High-temperature brazing filler metal for silicon carbide-based ceramic connection as well as preparation method and application of high-temperature brazing filler metal
The invention provides high-temperature brazing filler metal for silicon carbide-based ceramic connection and a preparation method and application thereof, and belongs to the technical field of silicon carbide ceramic materials. The high-temperature brazing filler metal for silicon carbide-based ceramic connection comprises, by mass, 2-15% of metal powder and the balance Ti-Si powder, and the metal powder comprises Fe powder, Al powder, Ni powder, Cr powder or Co powder. According to the invention, a small amount of metal elements are added into the Ti-Si brazing filler metal, so that the melting point of the brazing filler metal can be reduced, the connection time can be shortened, and in-situ reaction of the liquid brazing filler metal and silicon carbide-based ceramic is promoted to generate a high-strength Ti3SiC2MAX phase to connect a base material; and meanwhile, as the brazing filler metal is in a liquid state at high temperature, the compactness of a welding seam can be realized without using pressure, and the mechanical properties of a connecting piece at room temperature and high temperature are improved.
本发明提供了一种碳化硅基陶瓷连接用高温钎料及其制备方法和应用，属于碳化硅陶瓷材料技术领域。本发明提供的碳化硅基陶瓷连接用高温钎料，按质量百分比计，包括金属粉2～15％和余量的Ti‑Si粉，所述金属粉包括Fe粉、Al粉、Ni粉、Cr粉或Co粉。本发明在Ti‑Si钎料中加入少量的金属元素，可降低钎料熔点、缩短连接时间，并促进液态钎料与碳化硅基陶瓷发生原位反应生成具有高强度的Ti3SiC2MAX相来连接母材；同时，由于高温下钎料呈液态，不需要使用压力即可实现焊缝的致密化，提高了连接件在室温和高温下的力学性能。
High-temperature brazing filler metal for silicon carbide-based ceramic connection as well as preparation method and application of high-temperature brazing filler metal
The invention provides high-temperature brazing filler metal for silicon carbide-based ceramic connection and a preparation method and application thereof, and belongs to the technical field of silicon carbide ceramic materials. The high-temperature brazing filler metal for silicon carbide-based ceramic connection comprises, by mass, 2-15% of metal powder and the balance Ti-Si powder, and the metal powder comprises Fe powder, Al powder, Ni powder, Cr powder or Co powder. According to the invention, a small amount of metal elements are added into the Ti-Si brazing filler metal, so that the melting point of the brazing filler metal can be reduced, the connection time can be shortened, and in-situ reaction of the liquid brazing filler metal and silicon carbide-based ceramic is promoted to generate a high-strength Ti3SiC2MAX phase to connect a base material; and meanwhile, as the brazing filler metal is in a liquid state at high temperature, the compactness of a welding seam can be realized without using pressure, and the mechanical properties of a connecting piece at room temperature and high temperature are improved.
本发明提供了一种碳化硅基陶瓷连接用高温钎料及其制备方法和应用，属于碳化硅陶瓷材料技术领域。本发明提供的碳化硅基陶瓷连接用高温钎料，按质量百分比计，包括金属粉2～15％和余量的Ti‑Si粉，所述金属粉包括Fe粉、Al粉、Ni粉、Cr粉或Co粉。本发明在Ti‑Si钎料中加入少量的金属元素，可降低钎料熔点、缩短连接时间，并促进液态钎料与碳化硅基陶瓷发生原位反应生成具有高强度的Ti3SiC2MAX相来连接母材；同时，由于高温下钎料呈液态，不需要使用压力即可实现焊缝的致密化，提高了连接件在室温和高温下的力学性能。
High-temperature brazing filler metal for silicon carbide-based ceramic connection as well as preparation method and application of high-temperature brazing filler metal
一种碳化硅基陶瓷连接用高温钎料及其制备方法和应用
ZHANG RUIQIAN (author) / YAN JIAZHEN (author) / WU JIANG (author) / SHI HAOJIANG (author) / LI MING (author) / LI NING (author) / BAI DONG (author) / WANG XIAOMIN (author) / WU XIAOYONG (author) / SHANG JIACHENG (author)
2024-07-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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