Direct Digital Manufacturing Laboratory
 

Education

  • Ph.D., University of Texas at Austin, 1998
  • M.S., University of Texas at Austin, 1996
  • B.Tech., Indian Institute of Technology, Madras, 1990

Background

Began at Tech in Fall 2007 as an Associate Professor with tenure. Prior, he was a tenured Associate Professor (2006-2007) and an Assistant Professor (2000-2006) of Mechanical Engineering at the University of Michigan Ann Arbor.

Research

Wafer scale ordered growth of vertically aligned and periodically distributed Zinc Oxide nanowires grown on Gallium Nitride through an approach combining laser interference lithography and hydrothermal decomposition. The work is an outcome of collaborations with Professor Zhong Lin Wang, Materials Science and Engineering Department, Georgia Tech.

Professor Das directs the Direct Digital Manufacturing Laboratory and Research Group at Georgia Tech. His research interests encompass a broad variety of interdisciplinary topics under the overall framework of advanced design, prototyping, direct digital manufacturing, and materials processing particularly to address emerging research issues in life sciences, propulsion, and energy. His ultimate objectives are to investigate the science and design of innovative processing techniques for advanced materials and to invent new manufacturing methods for fabricating devices with unprecedented functionality that can yield dramatic improvements in performance, properties and costs. His research has been funded by DARPA, NSF, NIH, NRL, ONR, and Rolls-Royce.

  • Georgia Tech Center for the Enhancement of Teaching & Learning, Thank a Teacher Certificate, 2010
  • Woodruff School Faculty Fellow, 2009-2013
  • University of Texas at Austin Mechanical Engineering Department Distinguished Alumnus (Outstanding Young Mechanical Engineer category), 2008
  • University of Michigan Robert M. Caddell Memorial Award for Outstanding Research in Materials and Manufacturing, 2005.
  • Elsevier ScienceDirect Top 25 Hottest Articles Ranking for Biomaterials journal article, 2005.
  • Emerald Literati Club Highly Commended Award for Excellence, 2005.
  • Society of Manufacturing Engineers M. Eugene Merchant Outstanding Young Manufacturing Engineer Award, 2004.
  • Emerald Literati Club Highly Commended Award for Excellence, 2004.
  • National Science Foundation CAREER Award, 2003.
  • University of Texas at Austin Outstanding Doctoral Dissertation Award, 1999.
  • The Minerals, Metals and Materials Society (TMS) Michael J. Koczak Outstanding Paper Award, 1998.
  • Los Alamos National Laboratory Director's Post-doctoral Fellowship, 1997.

Patents

  • Solid Freeform Fabrication of Structurally Engineered Multifunctional Devices, U. S. Patent 7,509,240 B2, March 24, 2009.
  • Direct Selective Laser Sintering of Metals, Suman Das and Joseph J. Beaman, United States Patent 6,676,892 issued January 13, 2004.
  • Method and Apparatus for Making Components by Direct Laser Processing, Lawrence E. Brown, Timothy P. Fuesting, Suman Das and Joseph J. Beaman., United States Patent 6,355,086 issued March 12, 2002.

Representative Publications

  • V. Tomeckova, et al. 2010. Photopolymerization of Powder Suspensions for Shaping Ceramics.Journal of the European Ceramic Society (in press).
  • Yaguang Wei, et al. 2010. Wafer-Scale High-Throughput Ordered Growth of Vertically Aligned ZnO Nanowire Arrays. Nano Letters 10(9), 3414–3419.
  • Dajun Yuan, et al. 2010. Heteroepitaxial Patterned Growth of Vertically Aligned and Periodically Distributed ZnO Nanowires on GaN Using Laser Interference Ablation. Advanced Functional Materials 20(20), 3484–3489.
  • S. Eshraghi and S. Das. 2010. Mechanical and Microstructural Properties of Polycaprolactone Scaffolds with 1-D, 2-D, and 3-D Orthogonally Oriented Porous Architectures Produced by Selective Laser Sintering.Acta Biomaterialia6(7), 2467-2476.
  • S. R. Athreya, K. Kalaitzidou, and S. Das. 2010. Processing and Characterization of a Carbon Black-Filled Electrically Conductive Nylon-12 Nanocomposite Produced by Selective Laser Sintering. Materials Science and Engineering A 527(10-11), 2637-2642.