TY - JOUR
T1 - Ga-based liquid metal
T2 - A novel current-carrying lubricant
AU - Guo, Jie
AU - Cheng, Jun
AU - Tan, Hui
AU - Zhu, Shengyu
AU - Qiao, Zhuhui
AU - Yang, Jun
AU - Liu, Weimin
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/7
Y1 - 2019/7
N2 - Ga-based liquid metal (GLM) may be a promising current-carrying lubricant due to its excellent conductivity and good lubricity. But the lubrication mechanism of GLM under current-carrying condition is unclear. This paper attempts to investigate the feasibility of GLM as a current-carrying lubricant at atmosphere and room temperature (RT, ∼26 °C). It is found that GLM can effectively lubricate the metal sliding-pairs, and can further dramatically reduce the wear rate in current-carrying condition. The current promotes the adsorption of Ga on the counterpart connected to the cathode and inhibits the oxidation of Ga on both sliding-pairs. The present finding provides a technical supporting for the application of GLM used as a current-carrying lubricant, and enriches the lubrication science of liquid lubricants.
AB - Ga-based liquid metal (GLM) may be a promising current-carrying lubricant due to its excellent conductivity and good lubricity. But the lubrication mechanism of GLM under current-carrying condition is unclear. This paper attempts to investigate the feasibility of GLM as a current-carrying lubricant at atmosphere and room temperature (RT, ∼26 °C). It is found that GLM can effectively lubricate the metal sliding-pairs, and can further dramatically reduce the wear rate in current-carrying condition. The current promotes the adsorption of Ga on the counterpart connected to the cathode and inhibits the oxidation of Ga on both sliding-pairs. The present finding provides a technical supporting for the application of GLM used as a current-carrying lubricant, and enriches the lubrication science of liquid lubricants.
KW - Current-carrying lubricant
KW - Electric contacts
KW - Ga-based liquid metal
KW - Lubrication mechanism
UR - http://www.scopus.com/inward/record.url?scp=85063098965&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2019.03.039
DO - 10.1016/j.triboint.2019.03.039
M3 - 文章
AN - SCOPUS:85063098965
SN - 0301-679X
VL - 135
SP - 457
EP - 462
JO - Tribology International
JF - Tribology International
ER -