| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000385148 |
| ISSN: | 0103-9733 |
| Authors: | Tomas, Martin1 Novotny, Pavel1 |
| Institutions: | 1University of West Bohemia, New Technologies Research Centre, Plzen. República Checa |
| Year: | 2015 |
| Season: | Feb |
| Volumen: | 45 |
| Number: | 1 |
| Pages: | 28-35 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | This paper deals with results of the thermodielectric effect measurement. A paraffin wax as a dielectric material was investigated via differential scanning calorimetry and potentiometry during a phase transition. Possible description of the thermodielectric effect based on fundamental laws of thermodynamics is shown; to be more specific, the link between the potential difference and the latent heat is presented. The thermodynamic model of thermodielectric effect based on electrochemical equilibrium and charge generation at the solid/liquid interface is introduced. Results of the thermodielectric effect measurement are used for the calculation of a molecular mass of the paraffin wax. The relation for a surface area (interface) between liquid and solid phase of the paraffin wax during solidification is derived from the presented theoretical description of the thermodielectric effect |
| Disciplines: | Física y astronomía |
| Keyword: | Física de materia condensada, Propiedades dieléctricas, Aislantes, Calorimetría diferencial de barrido, Transición de fase, Parafina |
| Keyword: | Physics and astronomy, Condensed matter physics, Dielectric properties, Insulators, Differential scanning calorimetry, Phase transition, Paraffin |
| Full text: | Texto completo (Ver HTML) |
