The present paper reports the structure and tribological studies of Mo
S(x) films bombarded with 75 keV Ar+ at a dose of 2.1 x 10(17) Ar+ CM-
2. The results show that it is possible to amorphize MoS(x) crystallin
e films and to change the film composition with Ar+ bombardment. After
Ar+ bombardment, the sliding wear life of sputter-deposited MoS(x) fi
lms increases by a factor of 10, while the friction coefficient increa
ses from 0.05 to 0.16. The mechanism of sputter-deposited MoS(x) films
modified by ion bombardment is also discussed in this paper.