Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 92: Issue 3
Mechanism of thermal decomposition of zirconyl oxalate ZrOC2O4
Authors:
Ewa Drożdż-Cieśla AGH University of Science and Technology, Faculty of Materials Science and Ceramics Department of Inorganic Chemistry Al. Mickiewicza 30 30-059 Cracow Poland

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A. Małecki AGH University of Science and Technology, Faculty of Materials Science and Ceramics Department of Inorganic Chemistry Al. Mickiewicza 30 30-059 Cracow Poland

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Barbara Jajko AGH University of Science and Technology, Faculty of Materials Science and Ceramics Department of Inorganic Chemistry Al. Mickiewicza 30 30-059 Cracow Poland

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Pages:
939–944
Online Publication Date:
02 Jul 2008
Publication Date:
01 Jun 2008
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-007-8878-x
Keywords:
microstructure; thermal decomposition; zirconyl oxalate
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Abstract  

Thermal decomposition of zirconyl oxalate hydrate was studied using DTA, TG, QMS and XRD techniques. It was shown that decomposition occurs in two stages: dehydration to anhydrous oxalate and next, decomposition to zircon oxide (zirconia). These steps are not well separated. We observed that significant amount of water are released during second stage of decomposition. Zircon dioxide is obtained in tetragonal form. Moreover, we consider some dependences between conditions of preparations zirconyl oxalate hydrate and some properties of solid product of its decomposition. Although the reaction of thermal decomposition of zirconyl salts is generally utilized in technology, many aspects of this process are still not sufficiently explained. In our work, we present some new interesting observations concerning thermal behaviour of zirconyl oxalate.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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