Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 97: Issue 1
Sintering of a nano-crystalline metastable alumina
Influence of the firing parameters on the phase development and microstructural evolution
Authors:
Paola Palmero INSTM Research Unit — LINCE Lab Corso Duca degli Abruzzi 24 Department of Material Science and Chemical Engineering — Politecnico di Torino 10129 Torino Italy

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M. Lombardi INSTM Research Unit — LINCE Lab Corso Duca degli Abruzzi 24 Department of Material Science and Chemical Engineering — Politecnico di Torino 10129 Torino Italy

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Pages:
191–196
Online Publication Date:
28 Apr 2009
Publication Date:
01 Jul 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-008-9612-z
Keywords:
microstructural evolution; nano-crystalline metastable alumina; sintering
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Abstract  

The influence of the heating rate on phase transformation and microstructural evolution during sintering of a de-agglomerated nanocrystalline, transition alumina was investigated. A low heating rate treatment allowed to decrease the α-Al2O3 crystallization temperature as well as to displace densification at lower temperatures, also implying a refinement of the fired microstructures. In addition, the set-up of sintering cycles in which the heating rate changed in the range 0.5–20°C min−1 starting from intermediate, selected temperatures resulted in a further retention of a very fine and homogeneous grain size in final materials.

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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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