Making barium titanate dielectric for capacitors
Over the years I've needed capacitors with high dielectric constants. Click here to see my work with barium titanate to achieve this.
Measured relative dielectric constants (K)
The following are materials for which I've measured their dielectric constants.
| Material | My Measured Dielectic Constant (K) |
Dielectic Constant (K) from other Sources |
Click for details |
|---|---|---|---|
| Cellulose Acetate (clear sheets) | 2.3 | ? | Picture |
| Lucite Acrylic | 2.6 | 2.8 | Details |
| Resin (Dynatron/Bondo Corp.) | 3.5 | 2.5 to 6 (for Epoxy Resin), also 4 | Details |
| Paraffin wax | 2.2 | 2 to 3, also between 2.1 and 2.2 | Details |
| Varnished Cotton | 2.7 | N/A | Details |
Special thanks to Zoltan Losonc for his guidance in how to construct suitable capacitors and make proper measurements of capacitance for computing dielectric constants. Zoltan's webpage on how to do these measurements is here. Any errors or deficiencies are my own.
Measured breakdown voltages
The following are materials for which I've measured their breakdown voltages.
| Material | My Measured Breakdown Voltage |
Breakdown Voltages from other Sources |
Click for details |
|---|---|---|---|
| Varnished Cotton | 9.17MV/m or 233V/mil | N/A | Details |
