affiliation not provided to SSRN, Government of the United States of America - Ames National Laboratory, Government of the United States of America - Ames National Laboratory, University of Tennessee, Knoxville - Department of Materials Science and Engineering, Lawrence Livermore National Laboratory, affiliation not provided to SSRN, Lawrence Livermore National Laboratory, Lawrence Livermore National Laboratory - Materials Science Division, Lawrence Livermore National Laboratory and Government of the United States of America - Ames National Laboratory