Reversible high-pressure carbon nanotube vessel
Author(s)Wang, Lifeng; Ma, Ming D.; Liu, Jefferson Z.; Shen, Luming; Xie, Lin; Wei, Fei; Zhu, Jing; Gong, Qianming; Liang, Ji; Zheng, Quanshui; ... Show more Show less
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Applying a full pressure loop, i.e., loading and unloading, on a nanocrystal with in situ observation remains a challenge to experimentalists up until now. Using a multiwalled carbon nanotube, we realize the pressure loop acting on a Fe3C nanocrystal (with peak value 20 GPa) by electron-beam irradiation with in situ observations inside transmission electron microscopy at 500 °C/ambient temperature. Using density-functional theory calculations, we attribute the unloading process to the formation of one dangling-bond single vacancies under the electron-beam irradiation at room temperature. A theoretical model is presented to understand the process and the results agree well with the experimental measurements.
DepartmentMassachusetts Institute of Technology. Department of Mechanical Engineering
Physical Review B
American Physical Society
Ma, Ming D. et al. “Reversible high-pressure carbon nanotube vessel.” Physical Review B 81.23 (2010): 235420. © 2010 The American Physical Society.
Final published version