The MAX phase Ti₃SiC₂ has broad application prospects in the field of rail transit, nuclear protective materials and electrode materials due to its excellent electrical conductivity, self-lubricating properties and wear resistance. Cu-Ti₃SiC₂ co-continuous composites have superior performance due to the continuous distribution of 3D network structures. In this paper, the Cu/Ti₃SiC₂(TiC/SiC) co-continuous composites are formed via vacuum infiltration process from Cu and Ti₃SiC₂ porous ceramics. The co-continuous composites have significantly improved the flexural strength and conductivity of Ti₃SiC₂ due to the addition of Cu, with the conductivity up to 5.73×10⁵ S/m, twice as high as the Ti₃SiC₂ porous ceramics and five times higher than graphite. The reaction between ingredients leads to an increase in the friction coefficient, while the hard reaction products (TiC_x, SiC) lower the overall wear rate (1×10⁻³ mm³/(N•m)). Excellent electrical conductivity and wear resistance make co-continuous composites more advantageous in areas such as rail transit.

中文翻译：

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通过真空渗透工艺制备的高导电性耐磨Cu / Ti 3 SiC 2（TiC / SiC）共连续复合材料

MAX相Ti ₃ SiC ₂具有优异的导电性，自润滑性和耐磨性，在轨道交通，核保护材料和电极材料领域具有广阔的应用前景。由于3D网络结构的连续分布，Cu-Ti ₃ SiC ₂共连续复合材料具有卓越的性能。本文采用真空渗透工艺，由Cu和Ti ₃ SiC ₂多孔陶瓷形成Cu / Ti ₃ SiC ₂（TiC / SiC）共连续复合材料。共连续复合材料显着提高了Ti ₃ SiC的弯曲强度和导电性₂由于添加了Cu，电导率高达5.73×10 ⁵ S / m，是Ti ₃ SiC ₂多孔陶瓷的两倍，是石墨的五倍。成分之间的反应导致摩擦系数增加，而硬反应产物（TiC _x，SiC）降低总磨损率（1×10 ^-3 mm ³ /（N•m））。出色的导电性和耐磨性使共连续复合材料在诸如轨道交通等领域更具优势。