Ads by Google
Ceramic grinder for coffee/pepper grinderMaterial:95-97%Al2O3Characteristics:wear-resisting performance is good
This hexa ceramic grinder used on the coffee/pepper grinder,which has good corrosion resistance, high operating temperature, good mechanical characteristics, high wear resistance, high hardness, high thermal shock resistance.
They enjoy popularity among our customers in America and Germany,and the customers make enquires ceaseless.
We can make any ceramics accroding to your requirements(drawings or samples)!
| Name | Unit | Slim | ||
| Material | Al2O3 95%-97% | Al2O3 99% | Al2O3 99.7% | |
| Desity | g/cm3 | 3.7 | 3.85 | 3.9 |
| Flexural Strength | Mpa | 300 | 340 | 390 |
| Compressive Strength | Mpa | 3400 | 3600 | 3900 |
| Modulus of Elaslicity | Gpa | 350 | 380 | 390 |
| Impact Resistance | Mpa m1/2 | 4.0 | 5 | 5.2 |
| Weibull Moudulus | m | 10.0 | 10 | 12 |
| Vickers Hardness | HV0.5 | 1800.0 | 1900 | 2000 |
| Thermal Expansion Coefficent | 10-6K-1 | 5.0-8.3 | 5.4-8.3 | 5.5-8.4 |
| Thermal Conductivity | W/mK | 24 | 27 | 28 |
| Thermal Shork Resistance | T°C | 250 | 270 | 280 |
| Maximum Use Temperature | °C | 1600 | 1650 | 1700 |
| Volume Resistivity at 20°C | Ω | ≥1014 | ≥1014 | ≥1015 |
| Dielectric Constant | KV/mm | 20 | 25 | 30 |
| Open Porosity | % | 0 | 0 | 0 |
| Dielectric Constant | ξr | 10 | 10 | 10 |
| Dielectric Loss Angle | Tanσ | 0.001 | 0.001 | 0.0005 |
Ceramic grinder for pepper grinder