Machinable Al203 Alumina Zro2 Zirconia Ceramic Tube, Find details about China Alumina Ceramic, Ceramics from Machinable Al203 Alumina Zro2 Zirconia Ceramic Tube
1.High strength and hardness
2. Good wear resistance
3. Insulation, corrosion resistance
4. High lubrication and low resistance
Name of the materials | 99% aluminium oxide | 95% aluminium oxide | Zirconia | ||
Main ingredients | 99% Al2O3 | 95% Al2O3 | ZrO2 | ||
The material properties | Density | g/cm3 | 3.9 | 3.6 | 6 |
sintering temperature | ºC | 1700 | 1680 | 1600 | |
physical property | Hardness | HV | 1700 | 1500 | 1300 |
rupture strength | kgf/cm2 | 3500 | 3000 | 11000 | |
compressive strength | kgf/cm2 | 30000 | 25000 | 25000 | |
fracture toughness | Mpa.m3/2 | 4 | 3-4 | 3-4 | |
thermodynamic property | maximum servise temperature | ºC | 1500 | 1450 | 1300 |
Heat resisting impact | T(ºC) | 200 | 220 | 360 | |
pyroconductivity | w/m.k | 31.4 | 25 | 3 | |
(25ºC-300ºC) | 15.9 | 14 | 14 | ||
Appliance property | Volume Resistance /20ºC | Ω/cm2 | >1012 | >1012 | >1012 |
Volume Resistance /100ºC | 1012-1013 | 1012-1013 | 1012-1013 | ||
Volume Resistance /300ºC | >1012 | >1012 | 5x109 | ||
Dielectric Strength | kv/mm | 18 | 18 | 18 | |
Dielectric constant(100MHZ) | (E) | 10 | 9.5 | 9.5 | |
Dielectric tangent | (tgδ) | 0.4x10-3 | 0.4x10-3 | 0.4x10-3 |