1. Department of Mechanical Engineering, Southern University and A & M College, Baton Rouge, LA, USA
2. Department of Mechanical & Industrial Engineering, Louisiana State University, Baton Rouge, LA, USA
3. Department of Chemistry, Southern University and A & M College, Baton Rouge, LA, USA
4. EM31-Materials Science and Metallurgy Branch, NASA-Marshall Space Flight Center, Huntsville, AL, USA