Sample | Colloidal Silica | Fumed Silica | Precipitated and Acid Washed Silica | |||
20.9% H2O | 28.4% H2O | 15.2% H2O | 23.1% H2O | 11.6% H2O | 19.5% H2O | |
Stress at maximum (kPa) | 0.000 | 0.179 | 0.100 | 0.186 | 0.089 | 0.122 |
Electric filed at maximum (kV/mm) | 2.57 | 1.71 | 2.00 | 0.86 | 2.30 | 1.20 |
Increase in yield stress (kPa) | 0.059 | 0.086 | 0.033 | |||
Shift to lower electric due to water content (kV/mm) | 0.86 | 1.14 | 1.10 | |||
Difference in water content (%H2O) | 7.5 | 7.9 | 8.4 |