The contact mechanics of fractal surfaces. (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• The contact mechanics of fractal surfaces. (Articolo in rivista) (literal)

Anno

• 2003-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1038/nmat855 (literal)

Alternative label

• Buzio R 1, Boragno C 2, Biscarini F 3, Buatier de Mongeot F 4, Valbusa U. 5 (2003)
  The contact mechanics of fractal surfaces.
  in Nature materials (Print); NATURE PUBLISHING GROUP,, LONDON (Regno Unito)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Buzio R 1, Boragno C 2, Biscarini F 3, Buatier de Mongeot F 4, Valbusa U. 5 (literal)

Pagina inizio

• 233 (literal)

Pagina fine

• 236 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.nature.com/nmat/journal/v2/n4/full/nmat855.html (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 2 (literal)

Rivista

• Nature materials (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• la rivista è NATURE MATERIALS, ma il codice ISI inserito non è corretto, poichè non è stato trovato nell'ALL. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 4 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 4 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1,2,4,5 -INFM- Università di Genova, Genova, Italy 3 CNR-ISMN, Bologna, Italy (literal)

Titolo

• The contact mechanics of fractal surfaces. (literal)

Abstract

• The role of surface roughness in contact mechanics is relevant to processes ranging from adhesion to friction, wear and lubrication. It also promises to have a deep impact on applied science, including coatings technology and design of microelectromechanical systems. Despite the considerable results achieved by indentation experiments, particularly in the measurement of bulk hardness on nanometre scales, the contact behaviour of realistic surfaces, showing random multiscale roughness, remains largely unknown. Here we report experimental results concerning the mechanical response of self-affine thin films indented by a micrometric flat probe. The specimens, made of cluster-assembled carbon or of sexithienyl, an organic molecular material, were chosen as prototype systems for the broad class of self-affine fractal interfaces, today including surfaces grown under non-equilibrium conditions, fractures, manufactured metal surfaces and solidified liquid fronts. We observe that a regime exists in which roughness drives the contact mechanics: in this range surface stiffness varies by a few orders of magnitude on small but significant changes of fractal parameters. As a consequence, we demonstrate that soft solid interfaces can be appreciably strengthened by reducing both fractal dimension and surface roughness. This indicates a general route for tailoring the mechanical properties of solid bodies. (literal)

Editore

• NATURE PUBLISHING GROUP, (Editore)

Prodotto di

• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)

Autore CNR

• RENATO BUZIO (Unità di personale interno)
• UGO VALBUSA (Persona)
• FABIO BISCARINI (Unità di personale interno)
• FRANCESCO BUATIER DE MONGEOT (Persona)

Incoming links:

Prodotto

• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)

Autore CNR di

• UGO VALBUSA (Persona)
• FABIO BISCARINI (Unità di personale interno)
• RENATO BUZIO (Unità di personale interno)
• FRANCESCO BUATIER DE MONGEOT (Persona)

Editore di

• NATURE PUBLISHING GROUP, (Editore)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Nature materials (Rivista)