Novel method for filling graphite microfibers

Presently, there is a pressing need from U.S. Army in developing metal nano-filled graphite microfibers, which will be used for military applications such as infrared threat sensor countermeasures because they are excellent attenuators in the infrared region of the electromagnetic spectrum. The metal nano-fillings in graphite microfibers need to be highly conductive, continuous to a length of 3-5 m, and simultaneously can be produced at a low cost. However, there is not a cost-effective processing method available that is capable of achieving this requirement. Therefore, in this proposed research program, Aegis technology will: (1) Develop and demonstrate a novel nano-filling method based on electroless deposition technique to generate a highly conductive metal nano-filling in graphite microfibers; (2) Identify the underlying technical issues that govern the fabrication and performance of the filled microfibers; and (3) Use this knowledge to design and manufacture such highly conductive metal nano-fillings in graphite microfibers that exhibit the infrared attenuation required by Army. The anticipated technological impact of the proposed research program is the design, development and implementation of a novel metal nano-filling method based on electroless deposition technique that can be integrated into existing military and industrial applications, and lead to numerous new applications as well.