Synthesis of nanocrystalline tetragonal zirconia by a polymeric organometallic method
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
20/05/2014
20/05/2014
01/07/1999
|
Resumo |
A polymeric precursor method based on the Pechini process was successfully used to synthesize zirconia-12 mol% ceria ceramic powders, the influence of the main process variables (citric acid-ethylene glycol ratio, citric acid-total oxides ratio and calcination temperature) on phase formation and powder morphology (surface area and crystallite size) were investigated. The thermal decomposition behavior of the precursor is presented. X-ray diffraction (XRD) patterns of powders revealed a crystalline tetragonal zirconia single-phase, with crystallite diameter ranging from 6 to 15 nm. The BET surface areas were relatively high, reaching 95 m(2) g(-1) Nitrogen adsorption/desorption on the powders suggested that nonaggregated powders could be attained, depending on the synthesis conditions. Copyright (C) 1999 John Wiley & Sons, Ltd. |
Formato |
501-507 |
Identificador |
http://dx.doi.org/10.1002/(SICI)1099-0739(199907)13:7<501 Applied Organometallic Chemistry. W Sussex: John Wiley & Sons Ltd, v. 13, n. 7, p. 501-507, 1999. 0268-2605 http://hdl.handle.net/11449/38678 10.1002/(SICI)1099-0739(199907)13:7<501 WOS:000081261300004 |
Idioma(s) |
eng |
Publicador |
Wiley-Blackwell |
Relação |
Applied Organometallic Chemistry |
Direitos |
closedAccess |
Palavras-Chave | #Pechini process #zirconia #ceramic #x-ray diffraction |
Tipo |
info:eu-repo/semantics/article |