Effect of size and shape of nanofillers on electrostatic and thermal behavior of epoxy-based composites

Abstract

The role of nanodielectrics in the electrical power system is becoming crucial owing to its superior properties and potential applications in the field. Yet, the materials face limited breakdown strength and thermal properties. Further, the nanodielectrics have not found a comprehensive commercial platform because of the costly manufacturing process, and characterization and testing facilities. Therefore, to reduce the involved cost, in this work, an FE (finite element) based computational technique has been implemented to visualize the effect of shape, size, and filler concentration under the application of high voltage (HV). The epoxy-based nanodielectrics have been modeled incorporating a range of different shapes and size nanofillers—Al2O3, BN, BeO, SiO2, and TiO2. The paper discusses the 2D-analysis of the modeled nanodielectric in the steady-state electrostatic fields and thermal domains. It shows the insights of the nanofillers’ choice to ensure a perfect blend of electrical and thermal properties. The epoxy with square-shaped BeO fillers showed a rise in the electric field of nearly 1.5 times than unfilled neat epoxy, which indicates a significant surge in thermal conductivity at specific filler loading.

Epoxy-based ZnO nanocomposites in various configurations: Corona discharges and thermal transition studies

“…The surface condition of the fillers and the preparation technique also produce favorable outcomes. Our computational investigation 11 indicates that ZnO nanofillers have promising electrical and thermal properties in comparison to Al 2 O 2 , BN, SiO 2 , and TiO 2 . The current work examines the performance of epoxy-based ZnO nanodielectrics in resisting corona discharges and undergoing temperature transitions.…”

Advanced Cu/Polymer Hybrid Bonding System for Fine‐Pitch 3D Stacking Devices

“…Therefore, thermal conductivity may be increased by adjusting the filler material and composition with keeping the insulating property (Table 4. [75,77,82,[90][91][92][93][94] Al 2 O 3 and AlN are high thermal conductivity materials among electrical insulators, which have been widely investigated as heat radiation filler materials. For epoxy composite, the thermal conductivity was 3 wt% to 3 W mK −1 in Al 2 O 3 , and 15 vol% to 2.01 W mK −1 in AlN filler.…”