|
| volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 1 van 10 gevonden artikelen
| Titel: |
A Study on the Size Effect Via Spectrophotometry and Impedence Measurements |
| Auteur: |
Saq'an, S. Zihlif, A. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 56 (2007) nr. 4 pagina's 411-419 |
| Jaar: |
2007-04-01 |
| Inhoud: |
The optical and dielectric properties of polycarbonate films have been studied as a function of sample thickness. The observed optical energy gaps were determined from the absorption spectra. The dielectric constant was determined from impedance data collected in the frequency range of 30 Hz-40 kHz. Four polycarbonate thin sheets of different thickness (0.17, 0.25, 0.30, and 0.55 mm) were used to assess the size effect on the physical behavior of this material. It was found that the measured properties as optical energy gap, dielectric constant, refractive index, and glass transition temperature are nearly independent of the specimen thickness. In general, it can be seen that the processing conditions of the glassy polymer sheets are quite identical and not producing structural changes leading to detectable size effect. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 1 van 10 gevonden artikelen
| volgende >> |