Jiangsu BPT Precision Ceramics Co., LTD |
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1. Raw material: 95% ~ 99.7% alumina optional
2. Colors: White, ivory, pink, black, green, blue optional.
3. Different tolerance level capability via CNC maching, fine grinding and laser cutting.
4. Supporting prototyping need to high volume cost down program.
5. Besides, we offer zircona ceramic plate, silicon carbide ceramic plate.
Alumina ceramic performance table | |||||
Property | Item | Data | Unit | ||
99.8% | 99% | 95% | |||
Mechanical Characteristics | color | Ivory | light yellow | White | - |
density | 3.93 | 3.85 | 3.7 | g/cm3 | |
Bending Strength | 370 | 310 | 300 | MPa | |
Compressive trength | 2,500 | 2,400 | 2,300 | MPa | |
Elastic Modulus | 390 | 340 | 320 | GPa | |
Fracture Toughness | 4 | 3~4 | 3~4 | MPa m^1/2 | |
Weber Coefficient | 12 | 12 | 12 | m | |
Vickers Hardness | 1,850 | 1,600 | 1,400 | HV 0.5 | |
Thermal Characterics | Coefficient of Line Thermal Expansion | 7~8 | 7~8 | 7~8 | 10^-6 K^-1 |
Thermal Conductivity | 32 | 29 | 20 | W/mK | |
Thermal Shock Resistance (Put in Water) | 280 | 200 | 250 | ΔT °C | |
Max Working Temperature | 1,700 | 1,600 | 1,500 | °C | |
Electrical Characteristics | Volume Resistance at 20°C | >10^14 | >10^14 | >10^14 | Ωcm |
Dielectric Strength | 15×10^6 | 15×10^6 | 15×10^6 | V/m | |
Dielectric Constant | 10 | 10 | 10 | εr | |
One MHZ Dielectric Loss Angle at 20°C | 0.0001 | 0.0002 | 0.0004 | tanδ | |
Chemical Characteristics | Nitric Acid (60%) 90°C | 0.05 | 0.1 | 0.1 | WT Loss mg/cm^2/day |
Sulphuric Acid (95%) 95°C | 0.22 | 0.34 | 0.3 | ||
Caustic Soda (30%) 80°C | 0.04 | 0.95 | 0.9 |