1. Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu, Sichuan 610207, China
2. CCDC Downhole
Service Company, CNPC, Chengdu, Sichuan 610051, China
3. Faculty
of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
4. Department
of Mechanical Engineering, University of New Orleans, New Orleans, Louisiana 70148, United States
5. Surface
Science Western, The University of Western Ontario, 999 Collip Circle, London, Ontario N6G 0J3, Canada
6. Department
of Physics and Astronomy, The University of Western Ontario, London, Ontario N6A 3K7, Canada