China 95% 99% Alumina Al2O3 Textile Ceramic Roller with Grooves, Find details about China Alumina Ceramic Roller, Yarn Guide Roller from 95% 99% Alumina Al2O3 Textile Ceramic Roller with Grooves
Item | Unit | 95% al2o3 | 99% al2o3 | Zirconia | Black Tio2 | Yellow Tio2 |
Color | white,pink | cream,pink | white,black,yellow | Black | Yellow | |
Density | g/cm3 | 3.65 | 3.9 | 6 | 4 | 4 |
Flexural strength | MPA | 290 | 390 | 1300 | 70 | 70 |
Compressive strength | MPA | 3300 | 3900 | 3000 | 600 | 600 |
Vickers hardness | HV0.5 | 1800 | 2000 | 1150 | 900 | 900 |
Thermal expansion cofficient | 10-6 K-3 | 5-8.3 | 5.4-8.3 | 10 | 8.5 | 8.5 |
Thermal conductivity | w/mk | 23 | 28 | 2 | 25 | 25 |