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| HAL : hal-00323609, version 1 |
| Fiche détaillée |  Récupérer au format |
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| European Polymer Journal 43, 11 (2007) 4821-4829 |
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| Study of thermal aging effect on space charge in poly(methyl methacrylate) |
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| F. NamouchiH. Smaoui |
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| (11/2007) |
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| Charges evolution in poly(methyl methacrylate) (PMMA) samples under thermal aging effect has been studied by means of two complementary techniques, thermal step method (TSM) and thermally stimulated depolarization current (TSDC). For the first method, measurements reveal that injected charges, whose quantity is found depending on the number of applied temperature cycles, remain close to the surface sample. TSDC measurements have been carried out for different temperatures ranging from 25 degrees C to 140 degrees C. Three distinguishable dipolar relaxations (beta(1), beta(2) and alpha) have been highlighted. In the same way, the presence of polarization and injected charges has been confirmed. In support of electric characterization, X-ray reflectometry has been used. The obtained results equally emphasized the thermal aging effect on the material. |
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| 1 : | Institut d'Electronique du Sud (IES) |
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CNRS : UMR5214 – Université Montpellier II - Sciences et techniques |
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| Domaine | : | Sciences de l'ingénieur/Electronique |
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| PMMA – trapped charges – thermal aging – thermal step current – thermally stimulated depolarization currents – X-ray reflectometry – STEP METHOD – INSULATING MATERIALS – DEGRADATION – VALIDATION – FIELD |
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| hal-00323609, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00323609 | |
| oai:hal.archives-ouvertes.fr:hal-00323609 | |
| Contributeur : Daniel Gasquet | |
| Soumis le : Lundi 22 Septembre 2008, 15:40:26 | |
| Dernière modification le : Mercredi 15 Octobre 2008, 15:48:45 | |
