COMBINED USE OF XPS, XAES AND SIMS FOR THE CHARACTERIZATION OF FRACTURE SURFACES OF CEO2-Y2O3-ZRO2 COATINGS (Articolo in rivista)

Type
Label
  • COMBINED USE OF XPS, XAES AND SIMS FOR THE CHARACTERIZATION OF FRACTURE SURFACES OF CEO2-Y2O3-ZRO2 COATINGS (Articolo in rivista) (literal)
Anno
  • 1993-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/0169-4332(93)90434-D (literal)
Alternative label
  • G.M. Ingo (1993)
    COMBINED USE OF XPS, XAES AND SIMS FOR THE CHARACTERIZATION OF FRACTURE SURFACES OF CEO2-Y2O3-ZRO2 COATINGS
    in Applied surface science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G.M. Ingo (literal)
Pagina inizio
  • 235 (literal)
Pagina fine
  • 239 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 70-1 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • G.M. Ingo CNR, ISTITUTO DI TEORIA & STRUTTURA ELETTRONICA, AREA DELLA RICERCA DI ROMA, CP 10, 00016 MONTEROTONDO STAZIONE, ROME, ITALY (literal)
Titolo
  • COMBINED USE OF XPS, XAES AND SIMS FOR THE CHARACTERIZATION OF FRACTURE SURFACES OF CEO2-Y2O3-ZRO2 COATINGS (literal)
Abstract
  • X-ray photoelectron spectroscopy (XPS), X-ray induced Auger electron spectroscopy (XAES) and secondary ion mass spectrometry (SIMS) have been used to investigate segregation phenomena at fracture surfaces of thermal treated (up to 1460°C) 25.5CeO2-2.5Y2O3-72ZrO2 (percentages by weight) plasma sprayed thermal barrier coatings (TBC). The results show that segregation of bulk dissolved impurities and of yttrium stabilizing oxide, takes place at the fracture surfaces starting from 900°C. The chemical nature of the segregated phase is ascribable to an infinite chain silicate of sodium and yttrium with the presence of aluminium and iron at a temperature equal to and higher than 1100°C. SIMS ion images show further that aluminium segregates both at the silicate segregated regions as well as separately. The effect of these segregation phenomena on the properties of the TBC's is discussed. © 1993. (literal)
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