Alumina Ceramic Annulorum
Technical Parameters
Operating limites | Unitates | Alumina Ceramics | Alumina Ceramics |
Alumina Content | cum% | ≥ 99 | ≥ 95 |
Volumen Density | g /cm3 | 3.85 | 3.7 |
Duritia (HRA) | HRA ≥ | 88 | 86 |
Compressive fortitudo | MPa ≥ | 400 | 300 |
Maximum Temperature | ℃ | 1500 | 1500 |
Air Stricta Test | Transi | Transi | |
Concursores scelerisque Test | Transi | Transi | |
Coëfficiens Caloris Expansion | ×10-6/℃ | 8.2 | 7.5 |
Dielectric Constant | εr20℃, 1MHz | 9.2 | 9 |
Dielectric Loss | tanδ×10-4, 1MHz | 2 | 3 |
Volumen Resistivity | Ω·cm 20℃ | 1014 | 1013 |
PUNCTUM Fortitudo | KV/mm , DC≥ | 20 | 20 |
Acidum resistentia | mg/cm2 ≤ | 0.7 | 7 |
Alkali repugnans | mg/cm2 ≤ | 0.1 | 0.2 |
Abrasion Resistentia | g/cm2 ≤ | 0.1 | 0.2 |
Compressive fortitudo | M Pa ≥ | 2800 | 2500 |
Flexurae Fortitudo | M Pa ≥ | 350 | 200 |
Modulus elasticus | G Pa | 350 | 300 |
Poisson's Ratio | 0.22 | 0.2 | |
Scelerisque Conductivity | W/m·K(20℃) | 25 | 20 |