TY - JOUR
T1 - Hetero-shaped honeycomb arrays with Ag/GO/MoO3 towards adaptive lubrication in a wide temperature range
AU - Chang, Peng
AU - Zhang, Yunzhuo
AU - An, Wenjing
AU - Zhou, Rui
AU - Deng, Weibin
AU - Zhao, Yu
AU - Mei, Hui
N1 - Publisher Copyright:
© 2026 The Authors.
PY - 2026/7/1
Y1 - 2026/7/1
N2 - Structural lubricity is an emerging and significant phenomenon in modern tribology, which is expected to greatly diminish friction. Notably, it is urgent to minimize friction under extreme conditions such as ultra-high temperature to improve the accuracy and service life of mechanical assemblies. Herein, inspired by the structural optimization phenomenon of honeycomb adapting to the environment, several hetero-shaped honeycomb structural SiOC ceramics were developed through 3D printing technique. Their corresponding synergistic lubrication performance with Ag/GO/MoO3 ternary lubricants under different temperatures were investigated. Compared with the printed structure-less SiOC, the friction coefficients of all hetero-shaped honeycomb structural samples were reduced by more than 35%. The “Cross” structural composite achieved an excellent lubrication state with friction coefficient of 0.134 at 25°C, and “Trefoil” structured composite exhibited a stable friction coefficient of 0.365 at 800°C. This can be credited with the well-designed structure that deposits lubricants efficiently and collects wear debris in large quantities. Moreover, the combination of micro rolling effect of Ag/GO/MoO3 at room temperature with the adaptive layered Ag2MoO4 at high temperature enables excellent lubrication in a wide temperature range. This work sheds new light on the future development of lubrication systems and structural friction elements for extreme environments.
AB - Structural lubricity is an emerging and significant phenomenon in modern tribology, which is expected to greatly diminish friction. Notably, it is urgent to minimize friction under extreme conditions such as ultra-high temperature to improve the accuracy and service life of mechanical assemblies. Herein, inspired by the structural optimization phenomenon of honeycomb adapting to the environment, several hetero-shaped honeycomb structural SiOC ceramics were developed through 3D printing technique. Their corresponding synergistic lubrication performance with Ag/GO/MoO3 ternary lubricants under different temperatures were investigated. Compared with the printed structure-less SiOC, the friction coefficients of all hetero-shaped honeycomb structural samples were reduced by more than 35%. The “Cross” structural composite achieved an excellent lubrication state with friction coefficient of 0.134 at 25°C, and “Trefoil” structured composite exhibited a stable friction coefficient of 0.365 at 800°C. This can be credited with the well-designed structure that deposits lubricants efficiently and collects wear debris in large quantities. Moreover, the combination of micro rolling effect of Ag/GO/MoO3 at room temperature with the adaptive layered Ag2MoO4 at high temperature enables excellent lubrication in a wide temperature range. This work sheds new light on the future development of lubrication systems and structural friction elements for extreme environments.
KW - 3D printing
KW - Adaptive synergistic lubrication
KW - Ag/GO/MoO lubricant
KW - Hetero-shaped honeycomb structure
KW - Wide temperature range
UR - https://www.scopus.com/pages/publications/105041339479
U2 - 10.1016/j.jmrt.2026.06.090
DO - 10.1016/j.jmrt.2026.06.090
M3 - 文章
AN - SCOPUS:105041339479
SN - 2238-7854
VL - 43
SP - 162
EP - 172
JO - Journal of Materials Research and Technology
JF - Journal of Materials Research and Technology
ER -