Ph.D. Alumnus Siddhartha Pathak Wins First Place in NanoArt 2011 International Online Competition

Published on Tuesday July 19, 2011

Ph.D. alumnus Dr. Siddhartha Pathak (2009) has won First Place in the NanoArt 2011 International Online Competition.

To capture the winning image, highly dense carbon nanotube (CNT) brushes, produced by high temperature vacuum decomposition of SiC single crystals, were fabricated to a 500nm diameter pillar using focused ion beam (FIB) micromachining with a Ga ion source, and imaged using a scanning electron microscope (SEM). Under in-situ micro-compression experiments, these dense CNT pillars exhibit significantly higher modulus (~150 GPa) and orders of magnitude higher resistance to buckling (~6 GPa) than vapor phase deposited CNT brushes or carbon walls. The ability of these dense CNTs to dissipate energy, while withstanding such elevated loads, is highly promising for energy-absorbing applications, especially in MEMS devices.  The image is also credited to William Mook and Johann Michler of EMPA - a Research Institute of the ETH Domain, (Swiss Federal Laboratories for Materials Science and Technology). The CNT brushes were grown by Distinguished University and Trustee Chair Professor Yury Gogotsi's Nano Materials Group.

Since the Fall of 2010, Sid has been working at the California Institute of Technology (Caltech) as the 2010 W. M. Keck Institute for Space Studies Postdoctoral Fellow in Materials Science. At Caltech, Sid is continuing his research work in nano-mechanics, which involves mechanical testing at submicron length scales, with a particular emphasis towards space applications.

Tagged as Yury Gogotsi Awards Alumni