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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hu, W. Wunderlich, B. |
| Copyright Year | 2001 |
| Abstract | The response of a differential scanning calorimeter (DSC) to sawtooth-type temperature modulation has been analyzed in the time domain using a standard treatment of the DSC data without Fourier transformation into the frequency domain. This method has some of the advantages of a temperature-modulated DSC (TMDSC) and may achieve a reasonable accuracy with more transparent and less time-consuming data analysis than the current TMDSC. The limits of linearity and stationarity of the thermal response, a prerequisite for the validity of the calculation of the reversing heat capacity by Fourier transformation, can be easily recognized in standard DSC. In contrast to the common handling of TMDSC, where the non-reversing contributions are calculated as difference between the total and reversing parts, we define a new, directly measured quantity, called the imbalance in heat capacity. It represents the difference between heating and cooling due to the non-reversing thermal process. This quantity is also of value for the representation of irreversible contributions inquasi-isothermal processes, such as cold crystallization and the annealing of crystallites in the melting range. |
| Starting Page | 677 |
| Ending Page | 697 |
| Page Count | 21 |
| File Format | |
| ISSN | 13886150 |
| Journal | Journal of thermal analysis |
| Volume Number | 66 |
| Issue Number | 3 |
| e-ISSN | 15728943 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2001-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Inorganic Chemistry Physical Chemistry Polymer Sciences Measurement Science, Instrumentation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical and Theoretical Chemistry Condensed Matter Physics |
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