High-Conductivity Copper/Carbon Nanotube Conductor

Overview

• The primary conductor requirements in EAP applications require improvement in absolute conduction relative to Cu at operational temperatures (6×107 S/m at 20 °C) for electric machine applications, and specific conduction better than aluminum (1.4×107 S-cc/m-g) for transmission applications
• Graphene and CNT-based composites are being explored by a large number of research efforts in order to meet these challenging conductivity requirements.
• NASA GRC effort – sort metallic / non metallic nanotubes, develop method for coating the metallic nanotube, draw into wire.

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