Preparation method and application of liquid-state synthesized Ti3SiC2 ceramic material

• Main Authors: TANG YUXING, SUN GUODONG, KANG KAI, WANG ZHENJUN, TIAN QINGLAI
• Format: Patent
• Language: Chinese; English
• Published: 19.04.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS THEREOF; CONCRETE; INORGANIC CHEMISTRY; LIME, MAGNESIA; METALLURGY; NON-METALLIC ELEMENTS; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

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 p