Ir al contenido (pulsa Retorno)

Universitat Politècnica de Catalunya

    • Català
    • Castellano
    • English
    • LoginRegisterLog in (no UPC users)
  • mailContact Us
  • world English 
    • Català
    • Castellano
    • English
  • userLogin   
      LoginRegisterLog in (no UPC users)

UPCommons. Global access to UPC knowledge

Banner header
59.589 UPC E-Prints
You are here:
View Item 
  •   DSpace Home
  • E-prints
  • Centres de recerca
  • CIEFMA - Centre d'Integritat Estructural, Fiabilitat i Micromecànica dels Materials
  • Ponències/Comunicacions de congressos
  • View Item
  •   DSpace Home
  • E-prints
  • Centres de recerca
  • CIEFMA - Centre d'Integritat Estructural, Fiabilitat i Micromecànica dels Materials
  • Ponències/Comunicacions de congressos
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Aging resistance and fracture toughness of ceria–infiltrated zirconia

Thumbnail
View/Open
aging.pdf (329,5Kb) (Restricted access)   Request copy 

Què és aquest botó?

Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:

  • Disposem del correu electrònic de l'autor
  • El document té una mida inferior a 20 Mb
  • Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
Share:
 
  View Usage Statistics
Cita com:
hdl:2117/16753

Show full item record
Camposilvan, ErikMés informació
García Marro, FernandoMés informacióMés informacióMés informació
Mestra Rodríguez, Álvaro Miguel
Anglada Gomila, Marcos JuanMés informacióMés informació
Document typeConference report
Defense date2012
PublisherUniversidad de Alicante
Rights accessRestricted access - publisher's policy
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
The main drawback of yttria stabilized zirconia (3Y-TZP) is represented by the Low Temperature Degradation (LTD), which consists in the progressive transformation of the tetragonal phase, metastable at room temperature, to the stable monoclinic phase, when the material is exposed to humid environment and moderate temperatures. LTD is responsible for a decrease in superficial mechanical properties for relatively short exposure times, while bulk properties are affected for longer exposures. These effects have limited the use of 3Y-TZP in biomedical devices during the last years. A process based on the addition of ceria, a stabilizer of tetragonal phase less susceptible to LTD, has been recently developed. A solution of Cerium salts is infiltrated into the ceramic piece at the porous pre-sintered state. After sintering, ceria diffuses into zirconia lattice. In a first stage, the process was optimized in terms of LTD resistance, maintaining the microstructure, strength and hardness of 3Y-TZP. Nevertheless, a slight decrease in indentation fracture toughness was recorded. In a second stage, the research has been focused on the possibility of compensating the toughness decrease by sintering at higher temperature, obtaining a moderate increase in grain size without prejudicial effects on the LTD resistance achieved with ceria addition.
CitationCamposilvan, E. [et al.]. Aging resistance and fracture toughness of ceria–infiltrated zirconia. A: Congreso Nacional de Materiales. "XII Congreso nacional de materiales, XII Congreso IBEROMAT: Universidad de Alicante, 30 y 31 de mayo y 1 de junio de 2012". Alicante: Universidad de Alicante, 2012, p. 1-4. 
URIhttp://hdl.handle.net/2117/16753
ISBN978-84-695-3316-1
Publisher versionhttp://cataleg.upc.edu/record=b1410252~S1*cat
Collections
  • CIEFMA - Centre d'Integritat Estructural, Fiabilitat i Micromecànica dels Materials - Ponències/Comunicacions de congressos [106]
  • Departament de Ciència dels Materials i Enginyeria Metal·lúrgica - Ponències/Comunicacions de congressos [283]
Share:
 
  View Usage Statistics

Show full item record

FilesDescriptionSizeFormatView
aging.pdfBlocked329,5KbPDFRestricted access

Browse

This CollectionBy Issue DateAuthorsOther contributionsTitlesSubjectsThis repositoryCommunities & CollectionsBy Issue DateAuthorsOther contributionsTitlesSubjects

© UPC Obrir en finestra nova . Servei de Biblioteques, Publicacions i Arxius

info.biblioteques@upc.edu

  • About This Repository
  • Contact Us
  • Send Feedback
  • Privacy Settings
  • Inici de la pàgina