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http://hdl.handle.net/1942/2823
Title: | Synthesis of tetragonal zirconia nanoparticles via an aqueous solution-gel method | Authors: | GEUZENS, Elke VANHOYLAND, Geert D'HAEN, Jan VAN BAEL, Marlies VAN DEN RUL, Heidi MULLENS, Jules VAN POUCKE, Lucien |
Issue Date: | 2004 | Publisher: | TRANS TECH PUBLICATIONS LTD | Source: | EURO CERAMICS VIII, PTS 1-3. p. 343-346. | Series/Report: | KEY ENGINEERING MATERIALS | Series/Report no.: | 264-268 | Abstract: | Nanoparticles of phase-pure tetragonal ZrO2 are obtained by means of a water-based solution-gel route. By coordinating the Zr4+-ion in a peroxo-citrato-complex, a stable aqueous Zr-precursor is prepared which is transformed into an amorphous gel by evaporation of the solvent. The gel is subsequently thermally decomposed in order to form the oxide. Tetragonal ZrO2 is already present at 500degreesC, as shown by means of a high temperature XRD study of the precursor. TEM images of the gel calcined at 750degreesC show crystalline nanoparticles of tetragonal ZrO2 with a mean particle size of 16 nm. From high resolution XRD and TEM Studies it is concluded that the calcination temperature has a significant effect on the particle size of ZrO2. | Notes: | Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium. IMOMEC, B-3590 Diepenbeek, Belgium.Geuzens, E, Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, Univ Campus, B-3590 Diepenbeek, Belgium. | Keywords: | ZrO2 nanocrystalline powder; tetragonal; aqueous solution-gel; TEM; HT-XRD | Document URI: | http://hdl.handle.net/1942/2823 | ISI #: | 000223059700081 | Category: | C1 | Type: | Proceedings Paper | Validations: | ecoom 2005 |
Appears in Collections: | Research publications |
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