Yttria-zirconia coatings studied by grazing-incidence small-angle X-ray scattering during in situ heating

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dc.contributor.author Hoydalsvik, Kristin
dc.contributor.author Barnardo, Twilight
dc.contributor.author Winter, Rudolf
dc.contributor.author Haas, Sylvio
dc.contributor.author Tatchev, Dragomir
dc.contributor.author Hoell, Armin
dc.date.accessioned 2010-11-02T13:56:07Z
dc.date.available 2010-11-02T13:56:07Z
dc.date.issued 2010-09-20
dc.identifier.citation Hoydalsvik , K , Barnardo , T , Winter , R , Haas , S , Tatchev , D & Hoell , A 2010 , ' Yttria-zirconia coatings studied by grazing-incidence small-angle X-ray scattering during in situ heating ' Physical Chemistry Chemical Physics , vol 12 , no. 43 , pp. 14492-14500 . , 10.1039/C0CP00472C en
dc.identifier.issn 1463-9076
dc.identifier.other PURE: 152534
dc.identifier.other dspace: 2160/5848
dc.identifier.uri http://hdl.handle.net/2160/5848
dc.description Kristin Hoydalsvik, Twilight Barnardo, Rudolf Winter, Sylvio Haas, Dragomir Tatchev and Armin Hoell (2010). Yttria-zirconia coatings studied by grazing-incidence small-angle X-ray scattering during in situ heating. Physical Chemistry Chemical Physics, 2010, 12(43), 14492-14500. Sponsorship: HEFCW, EPSRC, EU en
dc.description.abstract The morphology of sol–gel derived dip-coated yttria-doped zirconia films containing variable amounts of yttria has been studied using in situ grazing-incidence small-angle X-ray scattering (GISAXS) whilst heated incrementally to 1000C. A procedure to analyse in situ GISAXS data has been devised which allows a quantitative analysis of time-dependent GISAXS data tracing processes such as chemical reactions or manufacturing procedures. To achieve this, the relative positions of the Yoneda peak and the through beam are used to fix the vertical q scale when the sample thickness is subject to fluctuations due to chemical reactions or deposition processes. A version of Beaucage’s unified model with a structure factor from Hosemann’s model for paracrystals describes the yttria-zirconia film data best. It is interpreted in terms of particles forming from a polymeric gel network and subsequently agglomerating into larger units subject to Ostwald ripening as both size and average separation distance of the scattering objects increase. The sample with the highest yttria content shows progressive surface roughening from 850C which may indicate the onset of chemical segregation. en
dc.format.extent 9 en
dc.language.iso eng
dc.relation.ispartof Physical Chemistry Chemical Physics en
dc.title Yttria-zirconia coatings studied by grazing-incidence small-angle X-ray scattering during in situ heating en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1039/C0CP00472C
dc.contributor.institution Materials Research en
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.description.status Peer reviewed en


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