Jill Sundberg, Harald Nyberg, Erik Särhammar, 等. Tribochemically Active Ti–C–S Nanocomposite Coatings[J]. 材料研究快报(英文), 2013,1(3):148-155.
Jill Sundberg, Harald Nyberg, Erik Särhammar, et al. Tribochemically Active Ti–C–S Nanocomposite Coatings[J]. Materials Research Letters, 2013, 1(3): 148-155.
Jill Sundberg, Harald Nyberg, Erik Särhammar, 等. Tribochemically Active Ti–C–S Nanocomposite Coatings[J]. 材料研究快报(英文), 2013,1(3):148-155.DOI: 10.1080/21663831.2013.802262.
Jill Sundberg, Harald Nyberg, Erik Särhammar, et al. Tribochemically Active Ti–C–S Nanocomposite Coatings[J]. Materials Research Letters, 2013, 1(3): 148-155.DOI: 10.1080/21663831.2013.802262.
Tribochemically Active Ti–C–S Nanocomposite Coatings
We demonstrate a new concept of self-adaptive materials
where sulphur is incorporated into TiC/a-C coatings and may be released in
for example
a tribological contact. By reactive sputtering with H
2
S
sulphur goes into the carbide to form a TiC
x
S
y
phase in an amorphous carbon matrix. The addi
tion of sulphur lowers the friction against steel. Significantly lower friction is obtained against a tungsten counter-surface
as WS
2
is generated in the contact. Annealing experiments and formation energy calculations confirm that sulphur can be released from TiC
x
S
y
. Ti–C–S coatings are thus chemically active in tribological contacts
creating possibilities of new low-friction systems.
Abstract
We demonstrate a new concept of self-adaptive materials
where sulphur is incorporated into TiC/a-C coatings and may be released in
for example
a tribological contact. By reactive sputtering with H
2
S
sulphur goes into the carbide to form a TiC
x
S
y
phase in an amorphous carbon matrix. The addition of sulphur lowers the friction against steel. Significantly lower friction is obtained against a tungsten counter-surface
as WS
2
is generated in the contact. Annealing experiments and formation energy calculations confirm that sulphur can be released from TiC
x
S
y
. Ti–C–S coatings are thus chemically active in tribological contacts
creating possibilities of new low-friction systems.