Zirconia /ZrO2 /zirconium oxide Ceramic Crucible
Zirconia /ZrO2 /zirconium oxide Ceramic Crucible
Zirconium oxide ceramics have very high thermal expansion and are therefore often the material of choice for joining ceramic and steel.
Zirconium oxide ceramics are used among other applications, as tools for wire forming, as auxiliaries in welding processes, as materials for crowns and bridges in the dental industry, as insulating rings in thermal processes, and as oxygen measurement cells in lambda probes.
High density
Good corrosion resistance
High strength and fracture toughness
High hardness and wear resistance
High temperature resistance and Low thermal conductivity
Performance
Physical properties: high insulation resistance, breakdown, high temperature resistance, abrasion resistance, high strength (three meters altitude fall not broken)
Fire rating: USA military standard MIL-F-51058 (the highest level)
Typical application: strong current, voltage, strong high temperature parts, IC MOS, IGBT power tube heat pipe insulation
Certification: natural organic matter, the European Union, exempt products without certification materials
Thermal conductivity: high temperature: 1600 degrees below the ideal heat insulating material of high voltage and high frequency equipment.
Materials | Al2O3 | AlN | ZrO2 | |
| 96% | 99.60% |
|
|
Color | White | White | Gray | White |
Density (g/cm 3 ) | 3.72 | 3.85 | 3.3 | 6.04 |
Thermal conductivity (W/m. K) | 22.3 | 29.5 | 160 -190 | 2.4 |
Thermal Expansion (x10 -6 / o C) | 8 | 8.2 | 4.6 | 10 |
Dielectric Constant (at 1MHZ) | 9.5 | 9.8 | 8.7 | 29 |
Loss Tangent (x10 -4 at 1MHZ) | 3 | 2 | 5 |
|
Volume Resistivity (ohm-m) | >10 14 | >10 14 | >10 14 |
|
Flexural Strength (N/mm 2 ) | 350 | 500 | 450 | |
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