| Autor: |
Anjos, V., Bell, M.J.V., Vasconcelos, Elder A. de, Silva Jr., E.F. da, Andrade, A.A., Franco, R.W.A., Castro, M.P.P., Esquef, I.A., Faria Jr., R.T. |
| Zdroj: |
Materials Science Forum; October 2006, Vol. 527 Issue: 1 p703-706, 4p |
| Abstrakt: |
In this paper we combine the use of photo-thermal techniques, Thermal lens (TL) spectrometry, Photoacoustic and heat capacity measurements to determine the optical path dependence with temperature (ds/dT) of a polycrystalline 3C-SiC sample. Results obtained for the polycrystalline sample with the TL technique show that ds/dT is negative at room temperature. This means that the thermal lens formed in 3C-SiC acts as a divergent lens when light impinges the sample. Our measurements, demonstrate that photo-thermal techniques can be used to obtain thermal parameters in circumstances where other techniques cannot be used, for example, in harsh environments. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
