1. Department of Mechanical and Nuclear Engineering; The Pennsylvania State University; University Park PA 16802 USA
2. EMS Energy Institute and Department of Energy and Mineral Engineering; The Pennsylvania State University; University Park PA 16802 USA
3. Center for Micro-Engineered Materials; University of New Mexico; Albuquerque New Mexico 87131 USA
4. National Energy Technology Laboratory; United States Department of Energy; Pittsburgh PA 15236 USA