Understanding the Electrical, Thermal, and Mechanical properties of silicone rubber boron nitride nanocomposites (PhD Viva Voce)

Abstract: Silicone rubber (PDMS) is widely used as an insulating material in high-voltage power systems because of its excellent dielectric properties, hydrophobicity, and environmental resistance. This study investigates the influence of hexagonal boron nitride (h-BN) nanofillers on the electrical, thermal, mechanical, and functional properties of silicone rubber nanocomposites. Advanced characterization techniques, including NMR spectroscopy, AFM, dielectric response spectroscopy, surface potential decay, and thermal and mechanical analyses, were employed to understand polymer chain dynamics, charge transport, and interfacial phenomena. The performance of the nanocomposites under AC, DC, harmonic voltages, and corona ageing was also evaluated. The results demonstrate that the optimized h-BN nanocomposites exhibit enhanced surface discharge resistance, thermal stability, dielectric performance, and mechanical strength, making them promising candidates for reliable high-voltage outdoor insulation applications.

Event Details
Title: Understanding the Electrical, Thermal, and Mechanical properties of silicone rubber boron nitride nanocomposites (PhD Viva Voce)
Date: July 18, 2026 at 09:00 AM
Venue: Google Meet (https://meet.google.com/cpu-pzgi-vuj)
Speaker: Mr. Ganesan K (EE21D066)
Guide: Dr. Sarathi R
Type: PHD seminar