Determination of Surface Temperature in ICP RF Plasma Treatments of Organic Materials
AUTOR(ES)
Farias, Carlos Eduardo, Bernardelli, Euclides Alexandre, Borges, Paulo Cesar, Mafra, Márcio
FONTE
Mat. Res.
DATA DE PUBLICAÇÃO
10/08/2017
RESUMO
The reactions that can occur on organic materials treated in plasma enviorement are strongly affected by surface temperature, thus the sharp determination of this variable is extremely important to process control. In situ temperature measurements are often employed; however, the measured point is generally under the treated surface. If in metallic materials the high thermal conductivity minimizes this problem, in non-metallic materials processing it becomes important, because its thermal resistivity besides a high sensibility to small temperature variations. The present work uses a simulation tool to extract thermal data on Ar+O2 RF plasma processing of Stearic Acid. Experimental data were obtained by thermocouples placed inside the samples. The extrapolation of surface temperature was performed by numerical simulation with Autodesk CFD software v.15.1. Results show that the temperature of the surface reaches values higher than the ones measured inside the sample holder. This difference of temperature is in good agreement with the visual observation of the phase transformations in the treated material, showing a simple and valuable tool to better control of plasma treatments.
Documentos Relacionados
- Surface Modification of Polymeric Materials by Plasma Treatment
- AISI 1005 Steel Plasma Treated by Different Thermochemical Surface Treatments
- Determination of plasma temperature by a semi-empirical method
- Determination of Elemental Impurities in Acyclovir Ointment and Raw Materials Using Microwave Acid Digestion (MW-AD) and ICP-MS
- MOVEMENT OF ORGANIC MATERIALS IN PLANTS