Giant Dielectric Constant and Mechanical, Heat Conducting and Structural Properties of Dental Composites by Adding Ca Ions

Abstract

It was investigated the micro-structural, mechanical, heat conducting and dielectric properties of composites by Ca addition. It was purposed the investigation of dielectric properties of the composites and the improvement of the mechanical strength and the decrease of the thermal conductivity. It is found that the Ca addition causes diffusion in the main matrix or accumulated in the inter-granular region of the composites. The thermal and mechanical properties showed a strong relationship between the type of composites and Ca content. It is concluded that the diffusion of Ca into the main matrix causes the improvement of the mechanical and thermal conducting properties which can be used in the commercial composite resins in the near future. The dielectric measurement of the composites showed giant values (10 6 -10 8 ) depending on the Ca content and the composites which are promising results for electronic applications.