A pseudo-isothermal kinetic analysis of the recrystallisation of nickel sulphide measured by non-isothermal DSC

Thomas, P; Šimon, P

A pseudo-isothermal kinetic analysis of the recrystallisation of nickel sulphide measured by non-isothermal DSC

Thomas, P

Šimon, P

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Publication Type:: Journal Article
Citation:: Journal of Thermal Analysis and Calorimetry, 2005, 80 (1), pp. 77 - 80
Issue Date:: 2005-03-01

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Field	Value	Language
dc.contributor.author	Thomas, P https://orcid.org/0000-0001-6962-2121	en_US
dc.contributor.author	Šimon, P	en_US
dc.date.issued	2005-03-01	en_US
dc.identifier.citation	Journal of Thermal Analysis and Calorimetry, 2005, 80 (1), pp. 77 - 80	en_US
dc.identifier.issn	1388-6150	en_US
dc.identifier.uri	http://hdl.handle.net/10453/571
dc.description.abstract	A pseudo-isothermal method for the kinetic analysis was applied to the recrystallisation of α to β nickel sulphide based on the Ozawa model for non-isothermal crystallisation in the presence of pre-existing nuclei. The aim of the analysis was to determine the number of steps involved in the recrystallisation and, hence, determine the applicability of the kinetic equation based on a single step mechanism, as is commonly applied in the kinetic analysis of solid-state processes using thermal methods. The kinetic analysis yielded evidence of at least two processes indicating that physical and mechanistic significance should not be drawn from the use of a single step approximation of the rate equation. © 2005 Akadémiai Kiadó, Budapest.	en_US
dc.relation.ispartof	Journal of Thermal Analysis and Calorimetry	en_US
dc.relation.isbasedon	10.1007/s10973-005-0616-7	en_US
dc.subject.classification	Physical Chemistry	en_US
dc.title	A pseudo-isothermal kinetic analysis of the recrystallisation of nickel sulphide measured by non-isothermal DSC	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	80	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0399 Other Chemical Sciences	en_US
dc.location.activity	Oslo
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	80	en_US

Abstract:

A pseudo-isothermal method for the kinetic analysis was applied to the recrystallisation of α to β nickel sulphide based on the Ozawa model for non-isothermal crystallisation in the presence of pre-existing nuclei. The aim of the analysis was to determine the number of steps involved in the recrystallisation and, hence, determine the applicability of the kinetic equation based on a single step mechanism, as is commonly applied in the kinetic analysis of solid-state processes using thermal methods. The kinetic analysis yielded evidence of at least two processes indicating that physical and mechanistic significance should not be drawn from the use of a single step approximation of the rate equation. © 2005 Akadémiai Kiadó, Budapest.

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http://hdl.handle.net/10453/571