- Le CLYM
|Titre||Study of inorganic fullerenes and carbon nanotubes by in situ Raman tribometry|
|Type de publication||Journal Article|
|Year of Publication||2007|
|Auteurs||Joly-Pottuz, L., J. M. Martin, M. Belin, F. Dassenoy, G. Montagnac, and B. Reynard|
|Journal||Applied Physics Letters|
Nanoparticles such as inorganic fullerenes of metal dichalcogenides or carbon nanotubes have been recently used as lubricant additives and they present excellent tribological properties. Raman spectroscopy is a useful technique to follow modification of these two structures. We developed an original tribometer able to perform in situ Raman analyses during sliding steel on a sapphire flat. These analyses gave unique information on real-time structural changes of nanoparticles inside the contact area: inorganic fullerenes are tribologically active by a progressive exfoliation process and carbon nanotubes is changed to amorphous carbon. Lubrication mechanism of these particles are explained in the light of analytical results.
|Short Title||Appl. Phys. Lett.|