dc.contributor.advisor |
Amarasinghe DAS |
|
dc.contributor.advisor |
Attygalle D |
|
dc.contributor.advisor |
Weragoda VSC |
|
dc.contributor.author |
Kumara DRD |
|
dc.date.accessioned |
2019 |
|
dc.date.available |
2019 |
|
dc.date.issued |
2019 |
|
dc.identifier.citation |
Kumara, D.R.D. (2019). Theoretical investigation of thermogravimetric analysis on the decomposition of solid-state materials [Master’s theses, University of Moratuwa]. Institutional Repository University of Moratuwa.http://dl.lib.mrt.ac.lk/handle/123/15908 |
|
dc.identifier.uri |
http://dl.lib.mrt.ac.lk/handle/123/15908 |
|
dc.description.abstract |
Thermogravimetric (TG) analysis and differential thermogravimetric (DTG) analysis are the most commonly used analytical techniques to determine the kinetic behaviour of solid-state chemical reactions through Arrhenius parameters and reaction model, which is called the kinetic triplet of solid-state reactions. There are number of methods proposed in the literature for extracting the kinetic parameters of solid-state reactions from TG & DTG thermograms. However, thermal event separation using curve fitting where overlapped thermal events may be present is mandatory before further TG/DTG analysis. In this study, a better curve fitting procedure and a new model fitting method for kinetic parameter extraction is proposed. Enhanced accuracy of the proposed method is proved by MATLAB® based, simulated DTG signals. Furthermore, a mathematical approach using higher differentials of DTG signal was developed to count the number of thermal events in overlapped DTG peaks. |
en_US |
dc.language.iso |
en |
en_US |
dc.subject |
MATERIALS SCIENCE AND ENGINEERING-Dissertations |
en_US |
dc.subject |
MATERIALS-Solid State |
en_US |
dc.subject |
THERMOANALYSIS |
en_US |
dc.subject |
DIFFERENTIAL THERMAL ANALYSIS |
en_US |
dc.title |
Theoretical investigation of thermogravimetric analysis on the decomposition of solid-state materials |
en_US |
dc.type |
Thesis-Full-text |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.degree |
Master of Philosophy |
en_US |
dc.identifier.department |
Department of Materials Science & Engineering |
en_US |
dc.date.accept |
2019 |
|
dc.identifier.accno |
TH4036 |
en_US |