Influence of zirconia CeO2 lattice stabilizing agent on bioglaze coating (Articolo in rivista)

Type

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

Label

• Influence of zirconia CeO2 lattice stabilizing agent on bioglaze coating (Articolo in rivista) (literal)

Anno

• 2003-01-01T00:00:00+01:00 (literal)

Alternative label

• Krajewski A., Ravaglioli A., Mazzocchi M., Labanti M., La Torretta T., Bezzi G., Minoccari G. (2003)
  Influence of zirconia CeO2 lattice stabilizing agent on bioglaze coating
  
  (literal)

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

• Krajewski A., Ravaglioli A., Mazzocchi M., Labanti M., La Torretta T., Bezzi G., Minoccari G. (literal)

Pagina inizio

• 121 (literal)

Pagina fine

• 131 (literal)

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

• 47 (literal)

Note

• ISI Web of Science (WOS) (literal)

Titolo

• Influence of zirconia CeO2 lattice stabilizing agent on bioglaze coating (literal)

Abstract

• The aim of this research is to study in detail the behaviur of glassy bioactive coatings (Bioglazes) on zirconia substrates with different stabilising agents. In the acse of tetragonal Ce-PSZ, some phenomena arose by applying a glaze coating. The stabilising CeO2 undergoes to an - even partially reversible - autoredox process (CeO3 - Ce2O3), caused by migration of oxygen during the glazing process (ZrO2 is known as a proton and oxygen radical conducer at high temperatures), with a macroscopic effect of a grey-green colouring of the Ce-PSZ substrate below the coated surface (\"affected volume\"). The migration of oxygen can assume an extent for which at the glazing temperature, about 1300°C, it is possible the chemical equilibrium shifts towards formation of Ce2O3. Grey-green is the own colour of Ce2O3. By eliminating the sealing action of the glaze towards atmosphere, oxygen can diffuse back inside Ce-PSZ lattice, recovering the chemical and thermodynamic equilibrium conditions with CeO2 and Ce2O3 and inducing a decolouring effect in the Ce-PSZ ceramic back to a light colour. The bioactive glass utilised to produce the coatings is a calcium-silicophosphatic one, coded AP40. (literal)

Prodotto di

• Institute of science and technology for ceramics (ISTEC) (Istituto)

Autore CNR

• ANTONIO RAVAGLIOLI (Unità di personale interno)
• ADRIANO KRAJEWSKI (Unità di personale interno)

Incoming links:

Prodotto

• Institute of science and technology for ceramics (ISTEC) (Istituto)

Autore CNR di

• ADRIANO KRAJEWSKI (Unità di personale interno)
• ANTONIO RAVAGLIOLI (Unità di personale interno)