Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 88: Issue 3
Ageing of wet-synthesized oxide powders
Role of surface carbonation, effect on sintering, restoration
Authors:
Laura Montanaro INSTM Research Unit POLITO-LINCE Department Materials Science and Chemical Engineering, Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino Italy

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K. Belgacem Université de Provence Laboratoire MADIREL, UMR CNRS 6121 Centre St. Jérôme, Av. Escadrille Normandie Niemen 13397 Marseille cedex 20 France

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P. Llewellyn Université de Provence Laboratoire MADIREL, UMR CNRS 6121 Centre St. Jérôme, Av. Escadrille Normandie Niemen 13397 Marseille cedex 20 France

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F. Rouquerol Université de Provence Laboratoire MADIREL, UMR CNRS 6121 Centre St. Jérôme, Av. Escadrille Normandie Niemen 13397 Marseille cedex 20 France

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F. Merlo INSTM Research Unit POLITO-LINCE Department Materials Science and Chemical Engineering, Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino Italy

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Paola Palmero INSTM Research Unit POLITO-LINCE Department Materials Science and Chemical Engineering, Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino Italy

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Pages:
789–793
Online Publication Date:
27 Jul 2007
Publication Date:
01 Jun 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-006-8066-4
Keywords:
ageing; alumina-YAG composites; ceramic precursors; high-res thermal analysis
Restricted access

Abstract  

Wet chemical synthesis of precursor oxide ceramics is a method to obtain small particulate powders. Such powders are far more prone to ageing in air than more traditional precursors. Thermogravimetric analysis is used to highlight the species responsible for the ageing of ceramic precursors. Indeed water and carbon dioxide are observed to evolve from aged powders. Ceramics obtained from aged precursors can reach a very low final density with respect to the theoretical value. A large degree of the original sintering properties can be recovered after washing the aged powders with ethanol in a basic medium.

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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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