1. Lethality Division, Weapons and Materials Research Directorate, US Army Combat Capabilities Development Command—Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, USA
2. Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, USA
3. Materials and Manufacturing Science Division, Weapons and Materials Research Directorate, US Army Combat Capabilities Development Command—Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, USA
4. Survice Engineering Co., US Army Combat Capabilities Development Command—Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, USA