Abstract: Design of materials at the nanoscale allows for the development of novel multi-functional materials with unprecedented properties. We have used physical vapor deposition to synthesize nanolayered metallic materials that are used as model systems to explore the mechanical and physical behavior at nanoscales. In this talk, I will present two examples. First, is the design of nanostructural dimensions and interface structures in Cu-Nb nanolayered composites to achieve ultra-high flow strengths, high deformability and high thermal and irradiation stability. Second, is the design of nano-twinned fcc metals with high flow strengths and deformability, high electrical conductivity and thermal stability. In both cases, the integration of experiments with atomistic modeling is found to be crucial in understanding the material behavior at the fundamental level.
This work is supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences (DOE/BES).
Bio: Amit Misra joined Los Alamos National Laboratory (LANL) as a post-doctoral researcher in November 1996 and was promoted to a staff scientist in August 1998. Currently, he is the co-director of the Center for Materials at Irradiation and Mechanical Extremes, an Energy Frontier Research Center (EFRC), and a staff scientist at the Center for Integrated Nanotechnologies (CINT) in the Materials Physics and Applications Division of LANL. He earned his MS and PhD degrees in Materials Science and Engineering from the University of Michigan, Ann Arbor, MI, and Bachelor’s degree in Metallurgy from the IT-BHU, India. He has co-authored over 200 peer-reviewed articles in archival journals, conference proceedings, and book chapters. He received the 2008 LANL Fellows’ prize for outstanding research in nanomechanics, and the 2011 Distinguished Scientist/Engineer award from The Minerals, Metals and Materials Society (TMS)- Materials Processing and Manufacturing Division (MPMD). He was recently appointed a Meeting Co-Chair for Materials Research Society (MRS) Fall 2012 and has served as a 2009 volume organizer, a guest editor and editorial board member for MRS Bulletin. Website: http://cmime.lanl.gov/
Host: Prof. G. Robert Odette