Abstract In this paper, the 3D pore structure of CuCr powders were obtained by pre-press shaping process, and finally the 3D interconnected carbon nanotubes/copper (CNTs/Cu) composites with excellent properties were insitu synthesized by chemical vapor deposition (CVD) and spark plasma sintering (SPS) technique. The morphology and structure of CNTs/ Cu composites are characterized by scanning electron microscopy (SEM), Raman spectra, transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), and the results showed that the quality of CNTs and the interfacial bonding strength of CNTs/ Cu composites can be improved owing to the 3D pore structure. Meanwhile, the 3D pore structure was favorable to avoid pollution of CNTs during the synthesis process. The tensile strength of CNTs/ Cu composites increased to 421.2 MPa, with 47.6% enhancements compared to CuCr. Furthermore, the coefficient of friction (COF) reduced to 0.22 and the corrosion resistance were increased by 51.86% compared to CuCr. Consequently, our research provides a novel and an effective method for the synthesis of high quality CNTs/ Cu composites.

中文翻译：

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3D互连CNTs/Cu复合材料的制备及性能

摘要 本文通过预压成型工艺获得了 CuCr 粉末的 3D 孔结构，最后通过化学气相沉积 (CVD) 和原位合成了具有优异性能的 3D 互连碳纳米管/铜 (CNTs/Cu) 复合材料。放电等离子烧结（SPS）技术。通过扫描电子显微镜（SEM）、拉曼光谱、透射电子显微镜（TEM）、X射线衍射（XRD）和X射线光电子能谱（XPS）对CNTs/Cu复合材料的形貌和结构进行表征，结果表明由于 3D 孔结构可以提高 CNTs 的质量和 CNTs/Cu 复合材料的界面结合强度。同时，3D孔结构有利于避免合成过程中碳纳米管的污染。CNTs/Cu 复合材料的拉伸强度增加到 421.2 MPa，与 CuCr 相比提高了 47.6%。此外，与CuCr相比，摩擦系数(COF)降低至0.22，耐腐蚀性提高51.86%。因此，我们的研究为合成高质量的碳纳米管/铜复合材料提供了一种新颖有效的方法。