Talc Porcelain Insulator Physical Properties | ||||
Material | 85Al2O3 | 90Al2O3 | 95Al2O3 | 99Al2O3 |
Al2O3 | 85% | 90% | 93% | 99.7% |
Fe2O3 | ≤1.0 | ≤0.5 | ≤0.5 | ≤0.3 |
Desnsity:g/cm3 | 3.4 | 3.5 | 3.6 | 3.85 |
Vicker Hardness | ≥8.6 | ≥8.8 | 9 | 9 |
Water Absorption:% | ≤0.2 | ≤0.1 | ≤0.085 | ≤0.01 |
Refractoriness:ºC | 1580 | 1600 | 1650 | 1800 |
Flexural Strength:Mpa | 180 | 200 | 240 | 280 |
Wear Rate(at room temperature, erosion, 100 grinding):% | ≤3 | ≤0.5 | ≤0.5 | ≤0.5 |