In recent years, significant developments in nano-particles/fillers for electrical, thermal, and mechanical properties have been observed. In the present work, experimentally the dielectric and thermal properties of standard/nano-filled sample of enamel with Zirconia as filler have been critically examined. The dielectric loss (tan δ), dielectric constant (ε), insulation strength, partial discharge inception voltage and weight loss of the material have been studied under various operating conditions. It has been observed from the present investigation that 1wt% of Zirconia (ZrO<sub>2</sub>) nano filler mixed enamel have improved dielectric and thermal properties.
11 Figures and Tables
Figure 1. SEM analysis of Zirconia.
Table 1. Inception and extinction voltage for uniform field configuration.
Table 2. Dielectric strength for various samples.
Figure 3a. Experimental setup for measurement of dielectric strength.
Figure 3b. Electrode setup for dielectric measurement.
Figure 4. At 60°C for a pure, 1, 3 and 5wt% of Zirconia mixed enamel.
Figure 5. 1wt% of Zirconia mixed enamel at various temperatures.
Figure 6. tan δ versus frequency at 300°C for a pure, 1wt%, 3wt% and 5wt% of Zirconia mixed enamel. The scale on x-axis is a logarithmic.
Figure 7. tan δ versus temperature at 50Hz for a pure, 1, 3 and 5wt% of Zirconia mixed enamel.
Figure 8. tan δ versus temperature at 1MHz for a pure, 1, 3 and 5wt% of Zirconia mixed enamel.
Figure 9. TGA comparison for pure enamel, 1wt%, 3wt% and 5wt% Zirconia filler with enamel.
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