1. Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright Patterson Air Force Base, Dayton, Ohio 45433, United States
2. National Research
Council, Washington, D.C. 20001, United States
3. UES, Inc., Dayton, Ohio 45432, United States
4. College
of Science and Mathematics, Wright State University, Dayton, Ohio 45435, United States
5. College of Engineering, Florida A&M University-Florida State University, Tallahassee, Florida 32310, United States