CARBON NANOTUBE COMPOSITE MATERIAL AND PRODUCTION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a carbon nanotube composite material which has a less blend amount of a carbon nanotube and has high conductance.SOLUTION: A carbon nanotube composite material 1 comprises: a metal matrix 10 formed of polycrystalline materials in which plural bar-shaped metallic crystal grains 11 are arranged in a same direction; and carbon nanotube conductive path parts 20 formed of a carbon nanotube, existing in parts of grain boundaries 15 between the bar-shaped metallic crystal grains 11 in a cross section of the metal matrix 10, and existing along a longitudinal direction L of the metal matrix 10, thereby forming a conductive path for conducting the longitudinal direction of the metal matrix 10.