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02A28
HaoRui
There are several types of zirconia ceramics, the most common being yttrium oxide partially stabilised zirconia (Y-PSZ) and magnesium oxide partially stabilised zirconia (Mg-PSZ). Its unique resistance to crack propagation and high thermal expansion make it an excellent material for joining ceramics to metals such as steel. Because of its unique properties, zirconia is sometimes referred to as "ceramic steel".
Precision shafts in high wear environments;
Fire-resistant materials;
Bushings and caps;
Fibre optic rings and sleeves;
Cutters and blades;
Fuel cell parts;
Bearings and rollers;
Electrical insulators;
Oxygen sensors;
Medical and surgical components;
Mechanical seal components;
Pumps, pistons and cylinder liners.
Basic properties of zirconia ceramics
Zirconium oxide generally refers to zirconium dioxide, the chemical formula is ZrO2, is the main oxide of zirconium, usually under the condition of white odourless and tasteless crystals, insoluble in water, hydrochloric acid and dilute sulfuric acid.
High density - up to 6.05g / cm³.
High flexural strength and hardness
Excellent fracture toughness - impact resistant
Maximum service temperature up to 1000°C
Good friction properties
Low thermal conductivity - close to: 10% of aluminium oxide
Resistant to acid and alkali corrosion
Modulus of elasticity similar to steel
Coefficient of thermal expansion similar to iron
Zirconia Ceramic Performance Table | |||
| Property | Item | Data | Unit |
| Mechanical Characteristics | Color | Ivory | - |
| Density | 6.02 | g/cm3 | |
| Bending Strength | 800 | MPa | |
| Compressive trength | 3000 | MPa | |
| Elastic Modulus | 200 | GPa | |
| Fracture Toughness | 8 | MPa m1/2 | |
| Weber Coefficient | 15 | m | |
| Vickers Hardness | 1200 | HV 0.5 | |
| Thermal Characterics | Coefficient of Line Thermal Expansion | 10 | 10-6K-1 |
| Thermal Conductivity | 3 | W/mK | |
| Thermal Shock Resistance(Put in Water) | 300 | ΔT °C | |
| Max Working Temperature | 1000 | °C | |
| Electrical Characteristics | Volume Resistance at 20°C | >1013 | Ωcm |
| Dielectric Strength | 11×106 | V/m | |
| Dielectric Constant | 33 | εr | |
| One MHZ Dielectric Loss Angle at 20°C | 0.0016 | tanδ | |
| Chemical Characteristics | Nitric Acid (60%) 90°C | ≒0.00 | WT Loss mg/cm^2/day |
| Sulphuric Acid (95%) 95°C | 0.04 | ||
| Caustic Soda (30%) 80°C | 0.08 | ||
There are several types of zirconia ceramics, the most common being yttrium oxide partially stabilised zirconia (Y-PSZ) and magnesium oxide partially stabilised zirconia (Mg-PSZ). Its unique resistance to crack propagation and high thermal expansion make it an excellent material for joining ceramics to metals such as steel. Because of its unique properties, zirconia is sometimes referred to as "ceramic steel".
Precision shafts in high wear environments;
Fire-resistant materials;
Bushings and caps;
Fibre optic rings and sleeves;
Cutters and blades;
Fuel cell parts;
Bearings and rollers;
Electrical insulators;
Oxygen sensors;
Medical and surgical components;
Mechanical seal components;
Pumps, pistons and cylinder liners.
Basic properties of zirconia ceramics
Zirconium oxide generally refers to zirconium dioxide, the chemical formula is ZrO2, is the main oxide of zirconium, usually under the condition of white odourless and tasteless crystals, insoluble in water, hydrochloric acid and dilute sulfuric acid.
High density - up to 6.05g / cm³.
High flexural strength and hardness
Excellent fracture toughness - impact resistant
Maximum service temperature up to 1000°C
Good friction properties
Low thermal conductivity - close to: 10% of aluminium oxide
Resistant to acid and alkali corrosion
Modulus of elasticity similar to steel
Coefficient of thermal expansion similar to iron
Zirconia Ceramic Performance Table | |||
| Property | Item | Data | Unit |
| Mechanical Characteristics | Color | Ivory | - |
| Density | 6.02 | g/cm3 | |
| Bending Strength | 800 | MPa | |
| Compressive trength | 3000 | MPa | |
| Elastic Modulus | 200 | GPa | |
| Fracture Toughness | 8 | MPa m1/2 | |
| Weber Coefficient | 15 | m | |
| Vickers Hardness | 1200 | HV 0.5 | |
| Thermal Characterics | Coefficient of Line Thermal Expansion | 10 | 10-6K-1 |
| Thermal Conductivity | 3 | W/mK | |
| Thermal Shock Resistance(Put in Water) | 300 | ΔT °C | |
| Max Working Temperature | 1000 | °C | |
| Electrical Characteristics | Volume Resistance at 20°C | >1013 | Ωcm |
| Dielectric Strength | 11×106 | V/m | |
| Dielectric Constant | 33 | εr | |
| One MHZ Dielectric Loss Angle at 20°C | 0.0016 | tanδ | |
| Chemical Characteristics | Nitric Acid (60%) 90°C | ≒0.00 | WT Loss mg/cm^2/day |
| Sulphuric Acid (95%) 95°C | 0.04 | ||
| Caustic Soda (30%) 80°C | 0.08 | ||
