Structural properties in “distorted” discs liquid crystalline

2^nd International Conference and Exhibition on Materials Science & Engineering

October 07-09, 2013 Hampton Inn Tropicana, Las Vegas, NV, USA

Nasim Seifi and Johan Foster

Accepted Abstracts: J Material Sci

Abstract :

Raytheon along with the help of the University of Dayton Research Institute and University of Arizona is developing a nanoscale material that will conduct thermal energy at two different rates through the thickness from each direction thus producing a thermal rectifier The design of the material is to begin with a 1 micron thick [100] silicon wafer, which is polished on one side. The unpolished side is etched with acid to produce a surface pyramidal shape. Aligned carbon nanotubes are then grown on the textured surface to create a highly conductive pathway for the phonon acoustic waves to travel through. To date we have been able to simulate the thermal rectifier?s feasibility with molecular modeling conducted with the assistance of Dr. Nick Swinteck of the sustainability engineering department at the University of Arizona. Molecular dynamics have been used to estimate this potential rectification efficiency. Growth and characterization of the aligned carbon nanotubes have been conducted with assistance from the Khalid Lafdi of the University of Dayton Research institute. Thermal testing of the material is to be conducted in the coming months and the data presented during the conference.