A novel approach to synthesize carbon nanofibers (CNFs) directly on the surface of metal μm-sized particles to evenly disperse the carbon nanomaterials in a composite material was proposed. As a metal matrix, 5–10 μm copper particles were utilized. As a carbon source, C2H2, CH4 and CO were examined. The best conditions were found to be in C2H2 (30 cm3/min) and H2 (260 cm3/min) atmosphere at the temperature of 750 °C. The composites based on copper and CNFs prepared by vacuum hot pressing showed the increase in hardness from 35 to 60 kg/mm2 almost retaining pure copper electrical properties.
Nasibulina, L. I., Koltsova, T. S., Joentakanen, T., Nasibulin, A. G., Tolochko, O. V., Malm, J. E. M., Karppinen, M. J., & Kauppinen, E. I. (2010). Direct synthesis of carbon nanofibers on the surface of copper powder. Carbon, 48(15), 4559-4562. https://doi.org/10.1016/j.carbon.2010.07.028