Spatio-temporal behaviour of atomic-scale tribo-ceramic films in adaptive surface engineered nano-materials

Fox-Rabinovich, G. ; Kovalev, A. ; Veldhuis, S. ; Yamamoto, K. ; Endrino, J.L. ; Gershman, I.S. ; Rashkovskiy, A. ; Aguirre, M.H. (Universidad de Zaragoza) ; Wainstein, D.L.

Resumen: Atomic-scale, tribo-ceramic films associated with dissipative structures formation are discovered under extreme frictional conditions which trigger self-organization. For the first time, we present an actual image of meta-stable protective tribo-ceramics within thicknesses of a few atomic layers. A mullite and sapphire structure predominates in these phases. They act as thermal barriers with an amazing energy soaking/ dissipating capacity. Less protective tribo-films cannot sustain in these severe conditions and rapidly wear out. Therefore, a functional hierarchy is established. The created tribo-films act in synergy, striving to better adapt themselves to external stimuli. Under a highly complex structure and non-equilibrium state, the upcoming generation of adaptive surface engineered nano-multilayer materials behaves like intelligent systems - capable of generating, with unprecedented efficiency, the necessary tribo-films to endure an increasingly severe environment.

Idioma: Inglés

DOI: 10.1038/srep08780

Año: 2015

Publicado en: Scientific Reports 5 (2015), 1-7
ISSN: 2045-2322

Factor impacto JCR: 5.228 (2015)

Categ. JCR: MULTIDISCIPLINARY SCIENCES rank: 7 / 62 = 0.113 (2015) - Q1 - T1

Factor impacto SCIMAGO: 2.034 - Multidisciplinary (Q1)

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)