X-Ray, Raman and FTIRS Studies of the Microstructural Evolution of Zirconia Particles Caused by the Thermal Treatment Full article
Journal |
Journal of Solid State Chemistry
ISSN: 0022-4596 , E-ISSN: 1095-726X |
||||||
---|---|---|---|---|---|---|---|
Output data | Year: 2006, Volume: 179, Number: 10, Pages: 2965-2971 Pages count : 7 DOI: 10.1016/j.jssc.2006.04.057 | ||||||
Tags | Hydrothermal treatment, Monoclinic zirconia, Polysynthetic twinning, Whole XRD pattern modeling | ||||||
Authors |
|
||||||
Affiliations |
|
Abstract:
Genesis of the structure of zirconia particles prepared by precipitation of amorphous hydrated zirconia by ammonia from the ZrO(NO3)2 solution followed by a mild hydrothermal treatment (HTT) of precipitate, washing and calcination under air up to 1000 °C has been studied by X-ray diffraction (XRD), Raman and FTIRS. As revealed by FTIRS of lattice modes, the local structure of amorphous zirconia subjected to HTT is close to that in m-ZrO2. This helps to obtain nearly single-phase monoclinic nanozirconia (particle size 5–15 nm) already after a mild calcination at 500 °C. Stability of this phase with nanoparticles sizes below the critical value determined by thermodynamic constraints is due to its excessive hydroxylation demonstrated by FTIRS. Dehydroxilation and sintering of these nanoparticles at higher (600–650 °C) temperatures of calcination leads to reappearance of the (111) “cubic” reflection in XRD patterns. Modeling of XRD patterns revealed that this phenomenon could be explained by polysynthetic (001) twinning earlier observed by HRTEM.
Cite:
Zyuzin D.A.
, Cherepanova S.V.
, Moroz E.M.
, Burgina E.B.
, Sadykov V.A.
, Kostrovskii V.G.
, Matyshak V.A.
X-Ray, Raman and FTIRS Studies of the Microstructural Evolution of Zirconia Particles Caused by the Thermal Treatment
Journal of Solid State Chemistry. 2006. V.179. N10. P.2965-2971. DOI: 10.1016/j.jssc.2006.04.057 WOS Scopus РИНЦ
X-Ray, Raman and FTIRS Studies of the Microstructural Evolution of Zirconia Particles Caused by the Thermal Treatment
Journal of Solid State Chemistry. 2006. V.179. N10. P.2965-2971. DOI: 10.1016/j.jssc.2006.04.057 WOS Scopus РИНЦ
Dates:
Submitted: | Oct 26, 2005 |
Accepted: | Apr 8, 2006 |
Published online: | May 22, 2006 |
Published print: | Oct 1, 2006 |
Identifiers:
Web of science | WOS:000240638100001 |
Scopus | 2-s2.0-33748800489 |
Elibrary | 13521983 |
Chemical Abstracts | 2006:880888 |
Chemical Abstracts (print) | 145:442545 |
OpenAlex | W2072620806 |