Characteristic Table of Ceramic Ring | |||||
Name | 99 Porcelain | 95 Porcelain | Zirconia | Talc Porcelain | |
Main Components | AL203>99% | AL203>95% | ZrO2>94% | MgO SiO2 | |
Physical Property | Density | 3.85 | 3.6 | 5.9 | 2.8 |
Water Absorption Rate% | 0 | 0 | 0 | 0 | |
Sintering Temperature ºC | 1700 | 1670 | 1600 | 1350 | |
Material Characteristics | Hardness HV | 1700 | 1600 | 1400 | 800 |
Bending Strength 4PT | >3500 | >2900 | >11000 | 900 | |
Compressive Strength KGF/CM2 | 30000 | 25000 | 25000 | 4000 | |
Thermodynamic Property | Maximum Operating Temperature ºC | 1600 | 1450 | 1300 | 1100 |
Thermal Expansion Coefficient 10-6/ºC 0-1000ºC | 8 | 7.8 | 10 | 6 | |
Heat Resistant Impact Force T(ºC) | 200 | 220 | 350 | 200 | |
Thermal Conductivity W/M.K | 31 | 22 | 3 | 2.5 | |
Electrical Characteristics | Volume Resistivity Ω.CM | >1012 | >1012 | >1012 | >1012 |
Insulation Breaking Strength KT/M | 18 | 16 | 15 | 10 | |
Dielectric Constant 1MHZ(E) | 9.2-10.5 | 9.0-10 | 12.5 | 5.8 |