1. Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
2. Mail Stop 230, Entry Systems and Technology
Division, NASA Ames Research Center, Moffett Field, California 94035, United States
3. Mail Stop 234, Thermal Protection Materials Branch, NASA Ames Research Center, Moffett
Field, California 94035, United States
4. Advanced Cooling Technologies, Inc., Lancaster, Pennsylvania 17601, United States