Table 1.

Comparison on tribological property of NbSe₂ as solid lubricant with previous literature reports.

Material and process	Friction coefficient	Wear rate or wear regime	Refs.
NbSe2 coating (1.4 and 1.6 μm in thickness) with a Ti intermediate layer by radio frequency magnetron sputtering	<0.1	10−15 m3N−1m−1	[8]
Ag-NbSe2 composite by powder metallurgy	0.2	10−14 m3N−1m−1	[1]
Cu-NbSe2 composite by powder metallurgy	0.15–0.20	N/A	[7]
NbSe2 micro/nanoplatets (8% coverage on the worn surface) by drop-casting	0.3	Mild wear, 10−15 m3N−1m−1 before worn out	This study