Crimping terminal and electric wire with crimping terminal

An electric wire with a crimping terminal, comprising:

• an electric wire comprising a conductive part;
• and
• a crimping terminal comprising a crimping part that is compressed to the conductive part of the electric wire,
• wherein a buffer layer comprising a resin, a plating or a grease that is interposed in a contact interface between the conductive part and the crimping part,
• wherein a conductive microscopic particle that comprises a fractal structure comprising a fine protrusion on a surface of the microscopic particle is mixed and dispersed in the buffer layer,
• wherein the microscopic particle in the buffer layer pierces an insulating coat on a surface of the conductive part and contacts the conductive part,
• wherein the crimping part comprises a flat surface,
• wherein a tip curvature diameter of the fine protrusion arranged on the surface of the microscopic particle is not less than 0.0006% of a radius of the microscopic particle and not more than 10% of the radius of the microscopic particle,
• wherein a height of the fine protrusion arranged on the surface of the microscopic particle is less than 0.5% of a diameter of the microscopic particle, and
• wherein the microscopic particle comprises Ni including P.