Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 70: Issue 1
Devitrification kinetics of PbGeO3
Authors:
C. Tomasi Universita di Pavia I.E.N.I.-C.N.R. Sez. di Pavia and Dipartimento di Chimica Fisica Viale Taramelli 16 I-27100 Pavia Italy Viale Taramelli 16 I-27100 Pavia Italy

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M. Scavini Universita di Milano Dipartimento di Chimica Fisica ed Elettrochimica Via Golgi 19 I-20133 Milano Italy Via Golgi 19 I-20133 Milano Italy

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A. Speghini Università di Verona, and INSTM, UdR Verona, Vignal ipartimento Scientifico e Tecnologico Strada Le Grazie 15 I-37134 Verona Italy Strada Le Grazie 15 I-37134 Verona Italy

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M. Bettinelli Università di Verona, and INSTM, UdR Verona, Vignal ipartimento Scientifico e Tecnologico Strada Le Grazie 15 I-37134 Verona Italy Strada Le Grazie 15 I-37134 Verona Italy

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M. Riccardi Università di Pavia C.G.S.-Centro Grandi Strumenti Via Bassi 21 I-27100 Pavia Italy Via Bassi 21 I-27100 Pavia Italy

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Pages:
151–164
Online Publication Date:
01 Nov 2004
Publication Date:
01 Aug 2002
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1020661818742
Keywords:
devitrification kinetics; glassy PbGeO3; isothermal and non-isothermal Johnson- Mehl-Avrami equations
Restricted access

Abstract  

The devitrification of glassy PbGeO3 was studied and interpreted by means of isothermal and non-isothermal Johnson-Mehl-Avrami equations. In the case of the non-isothermal approach, several approximated equations proposed by various authors were considered in order to obtain both the activation energy Ea and the Avrami morphological coefficient n of the crystallisation process. A critical discussion of the Avrami coefficient on the basis of experimental morphological evidence is also presented.

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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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