Analysis on structural and thermal properties of BeO nanoparticles and filled polymer matrix

Abstract

Beryllium oxide (BeO) nanoparticles were synthesized by polyacrylamide gel route and various calcination temperature was applied during the synthesize process.  The synthesized BeO nanocrytalites were examined by x- ray diffraction (XRD), scanning electron microscope (SEM), thermogravimetric analysis (TGA) and Transient Plane Source (TPS) Analysis. Structural parameters such as lattice parameter, lattice constant and were calculated using the XRD results. The size of the BeO crystallites were calculated by X-ray diffraction (XRD) which is 49.25 nm for sample calcined at 800⁰C and that was the lowest one. SEM analysis also shows an almost same value of size particles with XRD result for all sample.  It also depicts an irregular shape for all sample.  The calcination temperature applied on the BeO powder and the amount of filler added does affect the thermal conductivity of BeO filled epoxy which is favourable for thermal interface material (TIM) application in LED packages.  Thermal conductivity composite become higher when the particles size increase within the same volume of fraction.  The filler loading does effect the epoxy composition in term of thermal diffusivity and the result for specific heat capacity did show an increasing trend when more filler was added.