Effective Fracture Toughness in Al2O3-Al2O3/ZrO2 Laminates (Articolo in rivista)

Type

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

Label

• Effective Fracture Toughness in Al2O3-Al2O3/ZrO2 Laminates (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

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

• 10.1016/j.jeurceramsoc.2006.04.063 (literal)

Alternative label

• T. Lube; J. Pascual; F. Chalvet; G. De Portu (2007)
  Effective Fracture Toughness in Al2O3-Al2O3/ZrO2 Laminates
  in Journal of the European Ceramic Society
  (literal)

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

• T. Lube; J. Pascual; F. Chalvet; G. De Portu (literal)

Pagina inizio

• 1449 (literal)

Pagina fine

• 1453 (literal)

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

• http://www.sciencedirect.com/science/article/pii/S0955221906001762 (literal)

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

• 27 (literal)

Rivista

• Journal of the European Ceramic Society (Rivista)

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

• 5 (literal)

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

• 2-3 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• T. Lube, J. Pascual, Institut fur Struktur- und Funktionskeramik, Montanuniversit¨at Leoben, Peter Tunner Straße 5, Leoben A-8700, Austria; F. Chalvet, G. De Portu, Istituto di Scienza e Technologia dei Materiali Ceramici-CNR, Via Granarolo 64, 48018 Faenza, Italy (literal)

Titolo

• Effective Fracture Toughness in Al2O3-Al2O3/ZrO2 Laminates (literal)

Abstract

• During the processing of laminar ceramics, biaxial residual stresses can arise due to the thermal mismatch between different layers. For ceramic multilayers, the beneficial consequences of compressive stresses at the surface are well known: increase in strength, apparent toughness and reliability. Nevertheless, the resulting tensile stresses may induce a negative influence in the effective fracture toughness if the tensile stresses are high. The weight function technique is used to assess the stress intensity factor corresponding to the residual stresses field. The influence of geometrical parameters such as thickness, number of layers and tension/compression thickness ratio is analyzed. For different multilayers (Al2O3 -xAl2O3/(1-x)ZrO2), effective R-curves are presented. The existence of an optimal architecture that maximizes the toughening is exposed as well as two tendencies on the apparent R-curve that define different fracture patterns: brittle failure or layer-by-layer fracture. (literal)

Prodotto di

• Institute of science and technology for ceramics (ISTEC) (Istituto)
• Ceramici per applicazioni strutturali e funzionali: ossidi e compositi multilaminati (SP.P08.010.001) (Modulo)

Autore CNR

• GOFFREDO DE PORTU (Persona)

Insieme di parole chiave

• Keywords of "Effective Fracture Toughness in Al2O3-Al2O3/ZrO2 Laminates" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of science and technology for ceramics (ISTEC) (Istituto)
• Ceramici per applicazioni strutturali e funzionali: ossidi e compositi multilaminati (SP.P08.010.001) (Modulo)

Autore CNR di

• GOFFREDO DE PORTU (Persona)

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

• Journal of the European Ceramic Society (Rivista)

Insieme di parole chiave di

• Keywords of "Effective Fracture Toughness in Al2O3-Al2O3/ZrO2 Laminates" (Insieme di parole chiave)