1. Department of Materials Science and Engineering, Institute of Materials Science, University of Connecticut , Storrs, CT , USA
2. Department of Mechanical and Industrial Engineering, University of Massachusetts Amherst , Amherst, MA , USA
3. Material Science & Technology Division, U.S. Naval Research Laboratory , Washington, D.C. , USA
4. Electronics Science and Technology Division, U.S. Naval Research Laboratory , Washington, D.C. , USA