標題: Dry lubrication of friction on ferroelectric BiFeO3 film
作者: Yang, Chunbin
Xiao, Shuyu
Yang, Jan-Chi
Lu, Xiaomei
Chu, Ying-Hao
Zhou, Min
Huang, Fengzhen
Zhu, Jinsong
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Ferroelectric film;Friction;Dry lubrication;Van der Waals force;Stress
公開日期: 1-Nov-2018
摘要: Epitaxial BiFeO3 film shows excellent ferroelectric properties, which is not only studied extensively in magnetoelectric modulation but also shows good tribological performance. In our experiment, we find that the surface of BiFeO3 film can be more lubricant with the application of bias voltages or stress through the AFM probe with a reduction (up to similar to 40%) of the friction between the sample and the probe tip. Based on the Prandtl-Tomlinson model, the mechanism of the dry lubrication on BiFeO3 film originates from the reduction of van der Waals force between sample surface and probe tip. The findings here could be advantageously used in promoting the performance and durability of Micro/Nano Electromechanical devices based on ferroelectric thin films.
URI: http://dx.doi.org/10.1016/j.apsusc.2018.07.025
http://hdl.handle.net/11536/148023
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2018.07.025
期刊: APPLIED SURFACE SCIENCE
Volume: 457
起始頁: 797
結束頁: 803
Appears in Collections:Articles