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Satish Kumar, Ph.D. Professor Phone: (404) 894-7550 Fax: (404) 894-8780
Georgia Institute of Technology School of Polymer, Textile and Fiber Engineering
801 Ferst Drive, NW MRDC-1 Atlanta, GA. 30332-0295 |
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Dr. Satish Kumar |
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Dr. Satish Kumar received his Ph.D. degree in 1979 from Indian Institute of Technology, New Delhi, India in the area of Polymer and Fiber Science. He obtained his post-doctoral experience in the Polymer Science and Engineering department at the University of Massachusetts (1979-82). For the year 1982-83, he was a visiting scientist at the Atomic Energy Commission of France, C. E. N. G., Grenoble, France. During 1984-89 he was associated with the Polymer Branch, Air Force Materials Laboratory, Wright Patterson Air Force Base, Dayton, OH on contract through Universal Energy Systems and the University of Dayton Research Institute. He joined the faculty of the School of Polymer, Textile and Fiber Engineering at Georgia Tech in 1989, where he is currently serving as Professor. EDUCATIONAL BACKGROUND
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H.G. Chae and S. Kumar, Science, 319, (5865) 908 ~ 909 (2008) Schematic structures of various fibers. With decreasing disorder and defect density, the fiber strength increases (left to right). (Left) Typical commodity textile fiber contains amorphous and crystalline regions as well as voids and foreign particles; tensile strength, ~0.5 GPa. (Middle) High-performance polymer fibers contain chain ends, entanglements, voids, and defects; tensile strength, ~5 GPa. The structure of currently produced carbon nanotube fibers resembles this structure. In addition, carbon nanotube fibers often contain foreign particles in the form of catalysts. (Right) On the basis of predicted strain to failure (15), ideal carbon nanotube fibers without defects or entanglements will have a specific tensile strength of 70 N/tex; for a single-wall carbon nanotube fiber a diameter of 2 nm, this would translate to a tensile strength of 70 GPa. |