Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method and application of liquid-state synthesized Ti3SiC2 ceramic material
The invention discloses a preparation method and application of a liquid-state synthesized Ti3SiC2 ceramic material, and the preparation method comprises the following steps: uniformly mixing TiH2 powder with liquid-state polycarbosilane to obtain a liquid-state precursor material; and sequentially carrying out curing treatment, ball milling treatment, drying treatment and pyrolysis treatment on the precursor material in an inert atmosphere to obtain the Ti3SiC2 ceramic material. According to the invention, the liquid polycarbosilane and the TiH2 powder are adopted to form an all-liquid system, a high-content target product can be ensured without adding other additives or solvents, and meanwhile, the all-liquid system has good flowability, so that the all-liquid system and a porous material can be conveniently impregnated and combined to prepare a composite material meeting the use conditions of a high-speed rail pantograph; the mass of Ti3SiC2 in the prepared Ti3SiC2 ceramic material can reach 95%, and the prepared Ti3SiC2 ceramic material also contains a small amount of TiC which can form TiO2 at a high temperature, so that the effects of preventing the material from being oxidized and protecting the material are achieved.
本发明公开了一种液态合成Ti3SiC2陶瓷材料的制备方法及应用，所述制备方法包括：将TiH2粉与液态聚碳硅烷混合均匀，得到液态前驱体材料；于惰性气氛中，将所述前驱体材料依次进行固化处理、球磨处理、干燥处理和热解处理，即可得到所述Ti3SiC2陶瓷材料。本发明中采用液态聚碳硅烷与TiH2粉形成全液态体系，无需加入其他添加剂或溶剂便能保证较高含量的目标产物，同时全液态体系具有良好的流动性，便于与多孔材料通过浸渍结合制备满足高铁受电弓使用条件的复合材料；由此所制备的Ti3SiC2陶瓷材料中Ti3SiC2的质量可达95％，还含有少量TiC，其可以在高温下形成TiO2，从而达到阻止材料氧化，保护材料的作用。
Preparation method and application of liquid-state synthesized Ti3SiC2 ceramic material
The invention discloses a preparation method and application of a liquid-state synthesized Ti3SiC2 ceramic material, and the preparation method comprises the following steps: uniformly mixing TiH2 powder with liquid-state polycarbosilane to obtain a liquid-state precursor material; and sequentially carrying out curing treatment, ball milling treatment, drying treatment and pyrolysis treatment on the precursor material in an inert atmosphere to obtain the Ti3SiC2 ceramic material. According to the invention, the liquid polycarbosilane and the TiH2 powder are adopted to form an all-liquid system, a high-content target product can be ensured without adding other additives or solvents, and meanwhile, the all-liquid system has good flowability, so that the all-liquid system and a porous material can be conveniently impregnated and combined to prepare a composite material meeting the use conditions of a high-speed rail pantograph; the mass of Ti3SiC2 in the prepared Ti3SiC2 ceramic material can reach 95%, and the prepared Ti3SiC2 ceramic material also contains a small amount of TiC which can form TiO2 at a high temperature, so that the effects of preventing the material from being oxidized and protecting the material are achieved.
本发明公开了一种液态合成Ti3SiC2陶瓷材料的制备方法及应用，所述制备方法包括：将TiH2粉与液态聚碳硅烷混合均匀，得到液态前驱体材料；于惰性气氛中，将所述前驱体材料依次进行固化处理、球磨处理、干燥处理和热解处理，即可得到所述Ti3SiC2陶瓷材料。本发明中采用液态聚碳硅烷与TiH2粉形成全液态体系，无需加入其他添加剂或溶剂便能保证较高含量的目标产物，同时全液态体系具有良好的流动性，便于与多孔材料通过浸渍结合制备满足高铁受电弓使用条件的复合材料；由此所制备的Ti3SiC2陶瓷材料中Ti3SiC2的质量可达95％，还含有少量TiC，其可以在高温下形成TiO2，从而达到阻止材料氧化，保护材料的作用。
Preparation method and application of liquid-state synthesized Ti3SiC2 ceramic material
一种液态合成Ti3SiC2陶瓷材料的制备方法及应用
SUN GUODONG (Autor:in) / KANG KAI (Autor:in) / WANG ZHENJUN (Autor:in) / TIAN QINGLAI (Autor:in) / TANG YUXING (Autor:in)
19.04.2024
Patent
Elektronische Ressource
Chinesisch
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