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Ceramic Materials Performance | ||||||||||
Ceramic Material | ZrO2 | 99% AL2O3 | 95% AL2O3 | |||||||
Physical Characteristics | Bulk Density | g/cm3 | 6 | 3.9 | 3.6 | |||||
Water absorption | % | 0 | 0 | 0 | ||||||
Sintering temperature | ℃ | 1600 | 1700 | 1680 | ||||||
Mechanical Characteristics | Hardness | HV | 1300 | 1700 | 1500 | |||||
Flexural Strength | Kgf/cm2 | 11000 | 3500 | 3000 | ||||||
Compressive strength | Kgf/cm2 | 25000 | 30000 | 25000 | ||||||
Fracture toughness | Mpa.m3/2 | 3—4 | 4 | 3—4 | ||||||
Thermal Characteristics | Maximum service temperature | ℃ | 1450 | 1500 | 1450 | |||||
Coefficient of thermal expansion | /℃ | 9.5x10-6 | 8.0x10-6 | 8.0x10-6 | ||||||
0-1000℃ | ||||||||||
Thermal shock resistance | T(℃) | 360 | 200 | 220 | ||||||
Thermal Conductivity | w/m.k | 3 | 31.4 | 25 | ||||||
(25℃X-3OO℃) | 14 | 15.9 | 14 |
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