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Wechat: +86 18122974730| Property | Alumina | Property | Zirconia |
| Bulk density(g/cm3) | 3.85-3.93 | The density (g/cm3) | 6.05 |
| Hardness(HRA≥) | 86 | Bibulous rate(%) | 0 |
| Bending strength(Mpa≥) | 300 | Thermal expansion coefficient(10-6 /k) | 10.5 |
| Maximum service temperature(℃) | 1500 | Young's modulus of elasticity(Gpa) | 210 |
| Linear expansion coefficient(×10-6/℃) | 7.15-7.67 | Poisson's ratio(/) | 0.3 |
| Dielectric constant(εr(20℃,1MHz)) | 9.21 | Hardness (MPa) | 1200 |
| Dielectric loss(tanδ×10-4,1MHz) | 2.5 | Bending strength (MPa) | 950 |
| Volume resistivity(Ω·cm(100℃)) | 9.2*1016 | The bending strength (MPa) | 210 |
| The compressive strength(Mpa≥) | 2500 | Compressive strength (MPa) | 2000 |
| Flexural strength(Mpa≥) | 200 | Fracture toughness(Mpa.m1/2) | 10 |
| Modulus of elasticity(Gpa) | 300 | Thermal conductivity (W/m.k) | 2 |
| Poisson's ratio | 0.2 | Specific resistivity(Ω.mm2/m) | >1015 |
| Thermal conductivity Coefficient(W/m·K(20℃)) | 20 | Maximum service temperature(℃) | 1350 |
| Dc breakdown strength | 43.7 | Acid and alkali corrosion resistance(/) | strength |
| Tensile seal strength(Mpa) | 104.4 |
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