We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Tribologically induced nanostructural evolution of carbon materials: A new perspective.
- Authors
Neves, Guilherme Oliveira; Araya, Nicolás; Salvaro, Diego Berti; Lamim, Thiago de Souza; Giacomelli, Renan Oss; Binder, Cristiano; Klein, Aloisio Nelmo; de Mello, José Daniel Biasoli
- Abstract
Carbon-based solid lubricants are excellent options to reduce friction and wear, especially with the carbon capability to adopt different allotropes forms. On the macroscale, these materials are sheared on the contact along with debris and contaminants to form tribolayers that govern the tribosystem performance. Using a recently developed advanced Raman analysis on the tribolayers, it was possible to quantify the contact-induced defects in the crystalline structure of a wide range of allotropes of carbon-based solid lubricants, from graphite and carbide-derived carbon particles to multi-layer graphene and carbon nanotubes. In addition, these materials were tested under various dry sliding conditions, with different geometries, topographies, and solid-lubricant application strategies. Regardless of the initial tribosystem conditions and allotrope level of atomic ordering, there is a remarkable trend of increasing the point and line defects density until a specific saturation limit in the same order of magnitude for all the materials tested.
- Subjects
CARBON-based materials; MATERIALS testing; SOLID lubricants; CARBON nanotubes; CRYSTAL structure; POINT defects; GRAPHENE synthesis; GRAPHITE
- Publication
Friction (2223-7704), 2024, Vol 12, Issue 1, p144
- ISSN
2223-7704
- Publication type
Article
- DOI
10.1007/s40544-023-0754-6