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REU

December 7, 2005

FRONTIERS IN MATERIALS SCIENCE
VINSE COLLOQUIUM SERIES

Dr. Ray Baughman
University of Texas at Dallas
"Draw-State Fabricated Nanotube Yarns and Textiles for Artificial Muscle, Structural, Energy Storage, Energy Harvesting, Display, Field Emission and other Applications"

 Abstract. We describe novel methods for producing polymer-free carbon nanotube yarns and textiles, and describe their application as multifunctional materials. These fabrication methods are conducted at room temperature in the dry state for multi-walled carbon nanotubes, which are much cheaper to produce that our previously used single-walled carbon nanotube fibers. The yarns have a maximum failure strength of above 460 MPa (850 MPa after polymer infiltration), they are highly resistant to creep and to knot or abrasion-induced failure, and they provide a giant Poisson’s ratio for stretch in the fiber direction. The nanotube textiles have higher gravimetric strength than the strongest steel sheet or the polymers used for ultralight air vehicles and proposed for solar sails. Applications evaluations are described for artificial muscles, thermal and light harvesting, energy storage, cold field-emission electron sources, electrically conducting appliqués, three types of lamps and displays, and sensors. 

 
 
Vanderbilt University