Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/12994
Title: Modeling and analysis of temperature modulated differential scanning calorimetry (TMDSC)
Authors: XU SHENXI
Keywords: TMDSC, temperature modulation, modeling, heat capacity, reversing heat flow, non-reversing heat flow
Issue Date: 17-Feb-2008
Source: XU SHENXI (2008-02-17). Modeling and analysis of temperature modulated differential scanning calorimetry (TMDSC). ScholarBank@NUS Repository.
Abstract: AbstractIn this thesis, different aspects of TMDSC are studied, namely, (1) Effects of the contact thermal resistance on the observed specific heat, (2) Effects of the internal thermal resistance of the sample with a low heat diffusivity on the observed specific heat, (3) Effects of the types of non-reversing heat flow on the separability of the reversing and non-reversing heat flows, and (4) the separability of the reversing and non-reversing heat flows in TMDSC where the non-reversing heat flow is dependent on both time and temperature. It is found that both the contact and internal thermal resistances of the sample can significantly affect the observed specific heat under certain conditions. Good linearity of the TMDSC system is the pre-requisite to satisfactory separation of the reversing and non-reversing heat flows, as well as the pre-requisite to proper explanations of the imaginary part of the heat capacity.
URI: http://scholarbank.nus.edu.sg/handle/10635/12994
Appears in Collections:Ph.D Theses (Open)

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