Patent Number: 7,784,531

Title: Nanoengineered thermal materials based on carbon nanotube array composites

Abstract: A method for providing for thermal conduction using an array of carbon nanotubes (CNTs). An array of vertically oriented CNTs is grown on a substrate having high thermal conductivity, and interstitial regions between adjacent CNTs in the array are partly or wholly filled with a filler material having a high thermal conductivity so that at least one end of each CNT is exposed. The exposed end of each CNT is pressed against a surface of an object from which heat is to be removed. The CNT-filler composite adjacent to the substrate provides improved mechanical strength to anchor CNTs in place and also serves as a heat spreader to improve diffusion of heat flux from the smaller volume (CNTs) to a larger heat sink.

Inventors: Li; Jun (Sunnyvale, CA), Meyyappan; Meyya (San Jose, CA), Dangelo; Carlos (Los Gatos, CA)

Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration

International Classification: F28F 13/00 (20060101)

Expiration Date: 8/31/12018