Thermal diffusivity measurements of dental resin using photoacoustic effect

Author

Smijesh, N. ; Joseph, Lyjo K. ; Kurian, Achamma ; Nampoori, V.P.N.

Author_Institution

Dept. of Phys., Catholicate Coll., Pathanamthitta

fYear

2007

fDate

25-28 Nov. 2007

Firstpage

311

Lastpage

314

Abstract

The laser induced non-destructive photoacoustic technique has been employed to measure the thermal diffusivity of dental resin. The thermal diffusivity value was evaluated by knowing the transition frequency between the thermally thin to thermally thick region from the log-log plot of photoacoustic amplitude versus chopping frequency. Analysis of the data was carried out on the basis of the one-dimensional model of Rosencwaig and Gersho. The present investigation reveals that amount of monomer has great influence on the propagation of heat carriers and hence on the thermal diffusivity value.

Keywords

biomedical materials; dentistry; photoacoustic effect; resins; thermal diffusivity; chopping frequency; dental resin; photoacoustic effect; thermal diffusivity measurements; transition frequency; Dentistry; Frequency measurement; Intelligent systems; Laser beams; Photoacoustic effects; Polymers; Resins; Solids; Thermal conductivity; Thickness measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent and Advanced Systems, 2007. ICIAS 2007. International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-1355-3

Electronic_ISBN

978-1-4244-1356-0

Type

conf

DOI

10.1109/ICIAS.2007.4658397

Filename

4658397