1. School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, 2 West Wenhua Road, Weihai 264209, China
2. Weihai Engineering Research Center of Graphite Deep-Processing Technology, 2 West Wenhua Road, Weihai 264209, China
3. Weihai No.1 High School, 75 West Wenhua Middle Road, Weihai 264209, China
4. Beijing Key Laboratory of Intelligent Space Robotic System Technology and Applications, Institute of Spacecraft System Engineering, CAST, Beijing 100094, China
5. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
6. Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
7. United Microelect Corp. Ltd., 3 Pasir Ris Dr 12, Singapore 519528, Singapore