Published 1988
| Version v1
Journal article
Elaboration of finely divided powders of pure zirconia from a crystallized zirconium acetate
- 1. Lyon-1 Univ., 69 - Villeurbanne (France)
Description
This paper deals with the preparation of a crystallized zirconium acetate, the formula of which is: 2Zr0(CH3C00)2, CH3C00H, 2H20. The last step of the pyrolysis of this salt, at 8000C in air, is a submicronic powder of very pure monoclinic zirconia. Its formation is preceded by the apparition of amorphous zirconia, then by the crystallization of metastable tetragonal zirconia. The stabilization of this phase, up to 6500C, is connected with the presence of residual carbon preventing the growth of crystallites. 19 refs
Abstract (French)
Cet article traite de la preparation d'un acetate de zirconium cristallise de formule: 2Zr0(CH3C00)2, CH3C00H, 2H20. L'etape finale de la pyrolyse de ce sel, a l'air a 8000C, est une poudre submicronique de zircone monoclinique tres pure. Sa formation est precedee par l'apparition d'une zircone amorphe, puis la cristallisation d'une zircone quadratique metastable. La stabilisation de cette phase jusqu'au voisinage de 6500C semble liee a la presence de carbone residuel freinant la croissance des cristallitesAdditional details
Additional titles
- Original title (French)
- Elaboration de poudres finement divisees de zircone pure a partir d'acetate de zirconium cristallise
Publishing Information
- Journal Title
- Annales de Chimie. Science des Materiaux (Paris)
- Journal Volume
- 13
- Journal Issue
- 3
- Series
- Ann. Chim. (Paris).
- Journal Page Range
- 171-187
- ISSN
- 0003-3936
- CODEN
- ANCPA
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 20001693
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHEMICAL PREPARATION; MONOCLINIC LATTICES; POWDERS; PYROLYSIS; ZIRCONIUM OXIDES
- Descriptors DEC
- CHALCOGENIDES; CHEMICAL REACTIONS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DECOMPOSITION; OXIDES; OXYGEN COMPOUNDS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS