Structural features of phosphate and sulfate modified zirconia prepared by sol-gel route
dc.contributor.author | Kawaguti, C. A. | |
dc.contributor.author | Chiavacci, L. A. | |
dc.contributor.author | Pulcinelli, Sandra Helena [UNESP] | |
dc.contributor.author | Santilli, Celso Valentim [UNESP] | |
dc.contributor.author | Briois, V | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Univ Paris 11 | |
dc.date.accessioned | 2014-05-20T15:25:49Z | |
dc.date.available | 2014-05-20T15:25:49Z | |
dc.date.issued | 2004-10-01 | |
dc.description.abstract | This paper describes the effect of sulfate, phosphate and nitrate complexing ligands on the structural features of amorphous xerogels and on the crystallization of metastable zirconia phases during the xerogel-ceramic conversion. Powdered samples were prepared by a sol-gel route using zirconyl chloride precursors chemically modified by complexing ligands. The structural evolution of ZrO2 phases as function of firing temperature was analyzed by XRPD, EXAFS and P-13 NMR/MAS. The experimental results show the formation of metastable t-ZrO2 during the low firing temperature of xerogels modified by sulfate or phosphate groups. The martensitic tetragonal-monoclinic transformation occurs during desorption of sulfate groups. The largest temperature interval of stability of metastable tetragonal zirconia was observed for phosphate-modified xerogels. | en |
dc.description.affiliation | UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil | |
dc.description.affiliation | Univ Paris 11, LURE, F-91898 Orsay, France | |
dc.description.affiliationUnesp | UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil | |
dc.format.extent | 91-97 | |
dc.identifier | http://dx.doi.org/10.1007/s10971-004-5771-y | |
dc.identifier.citation | Journal of Sol-gel Science and Technology. Dordrecht: Springer, v. 32, n. 1-3, p. 91-97, 2004. | |
dc.identifier.doi | 10.1007/s10971-004-5771-y | |
dc.identifier.issn | 0928-0707 | |
dc.identifier.lattes | 9971202585286967 | |
dc.identifier.lattes | 5584298681870865 | |
dc.identifier.orcid | 0000-0002-8356-8093 | |
dc.identifier.uri | http://hdl.handle.net/11449/36160 | |
dc.identifier.wos | WOS:000228103300016 | |
dc.language.iso | eng | |
dc.publisher | Springer | |
dc.relation.ispartof | Journal of Sol-Gel Science and Technology | |
dc.relation.ispartofjcr | 1.745 | |
dc.relation.ispartofsjr | 0,477 | |
dc.rights.accessRights | Acesso restrito | pt |
dc.source | Web of Science | |
dc.subject | sol-gel process | pt |
dc.subject | zirconia tetragonal phase | pt |
dc.title | Structural features of phosphate and sulfate modified zirconia prepared by sol-gel route | en |
dc.type | Artigo | pt |
dcterms.license | http://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0 | |
dcterms.rightsHolder | Springer | |
dspace.entity.type | Publication | |
relation.isOrgUnitOfPublication | bc74a1ce-4c4c-4dad-8378-83962d76c4fd | |
relation.isOrgUnitOfPublication.latestForDiscovery | bc74a1ce-4c4c-4dad-8378-83962d76c4fd | |
unesp.author.lattes | 9971202585286967 | |
unesp.author.lattes | 5584298681870865[4] | |
unesp.author.orcid | 0000-0002-8356-8093[4] | |
unesp.campus | Universidade Estadual Paulista (UNESP), Instituto de Química, Araraquara | pt |
unesp.department | Físico-Química - IQAR | pt |
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