Zirconia Ceramic Parts (ZrO2)
High-strength technical ceramic for wear resistance, fracture
toughness, and demanding industrial applications.
What is Zirconia Ceramic?
Zirconia Ceramic, also known as zirconium dioxide ceramic (ZrO₂), is one of the strongest and toughest advanced ceramic materials available. Unlike most ceramics that are brittle, zirconia ceramics exhibit exceptional fracture toughness, high strength, and excellent wear resistance.
Due to its unique transformation toughening mechanism, zirconia ceramic can resist crack propagation and maintain outstanding mechanical performance even under high stress conditions. In addition, zirconia offers good chemical stability, high temperature resistance, and low thermal conductivity.
Because of these properties, precision zirconia ceramic components are widely used in industries such as medical devices, semiconductor equipment, precision machinery, electronics, and wear-resistant industrial systems.
HQ Precision Ceramics provides custom zirconia ceramic parts manufactured with high dimensional accuracy, tight tolerances, and excellent surface finishes for demanding engineering applications.
Key Features of Zirconia Ceramics
- Extremely High Fracture Toughness
Zirconia ceramic has one of the highest fracture toughness values among engineering ceramics, providing excellent resistance to cracking and mechanical shock. - High Strength and Wear Resistance
Its high hardness and strength make zirconia ideal for components exposed to severe wear and mechanical stress. - Excellent Corrosion and Chemical Resistance
Zirconia ceramics are highly resistant to most chemicals, acids, and corrosive environments. - Low Thermal Conductivity
Zirconia acts as an effective thermal barrier, making it suitable for high-temperature insulation applications. - Good Electrical Insulation
Zirconia ceramic provides reliable electrical insulation for various electronic and electrical applications. - Long Service Life
Due to its toughness and wear resistance, zirconia ceramic components typically offer long service life in demanding industrial environments.
Technical Properties of Zirconia Ceramic
The following table summarizes the typical physical, mechanical, thermal, and electrical properties of zirconia ceramic (ZrO₂). These values are provided for reference and may vary depending on material grade, manufacturing method, and specific application requirements.
| Property | Unit | Typical Value | Notes |
|---|---|---|---|
| Material Name | — | Zirconia Ceramic | Zirconium Oxide Ceramic |
| Material Type | — | Oxide Ceramic | Advanced structural ceramic |
| Chemical Formula | — | ZrO₂ | Zirconium dioxide |
| Color | — | White / Ivory | Depends on stabilizer |
| Crystal Structure | — | Tetragonal / Cubic | Stabilized zirconia |
| Typical Stabilizer | — | Y₂O₃ | Yttria-stabilized zirconia (YSZ) |
| Porosity | % | <0.1 | Dense sintered ceramic |
| Machinability | — | Limited | Requires diamond grinding |
| Property | Unit | Typical Value | Notes |
|---|---|---|---|
| Density | g/cm³ | 5.9 – 6.1 | Y-TZP zirconia |
| Water Absorption | % | 0 | Dense material |
| Specific Heat | J/kg·K | ~480 | At 25 °C |
| Thermal Diffusivity | m²/s | 1.0 – 1.2 ×10⁻⁶ | At room temperature |
| Property | Unit | Typical Value | Notes |
|---|---|---|---|
| Young’s Modulus | GPa | ~200 | Typical value |
| Shear Modulus | GPa | ~80 | Typical value |
| Poisson’s Ratio | — | 0.30 | Typical value |
| Vickers Hardness | HV | 1200 – 1400 | High hardness |
| Flexural Strength | MPa | 900 – 1200 | Very high strength |
| Compressive Strength | MPa | 2000 | Typical value |
| Fracture Toughness | MPa·m½ | 6 – 10 | Excellent toughness |
| Property | Unit | Typical Value | Notes |
|---|---|---|---|
| Maximum Continuous Operating Temperature | °C | 1000 | Structural applications |
| Maximum Short-Term Temperature | °C | 1200 | Short exposure |
| Thermal Conductivity | W/m·K | 2 – 3 | Low conductivity |
| CTE (25–1000 °C) | ×10⁻⁶ /°C | 10 – 11 | Thermal expansion |
| Melting Point | °C | 2700 | Zirconium oxide |
| Property | Unit | Typical Value | Notes |
|---|---|---|---|
| Dielectric Constant (1 MHz) | — | 25 – 30 | High dielectric constant |
| Loss Tangent | — | ~0.002 | Typical value |
| Dielectric Strength | kV/mm | 10 – 15 | Typical value |
| Volume Resistivity | ohm·cm | ≥10¹⁰ | At room temperature |
| Electrical Insulation | — | Good | Temperature dependent |
*All values shown are typical material properties and are provided for reference only. Actual values may vary depending on material grade, manufacturing process, and testing conditions.
Advantages of Zirconia Ceramic
Zirconia ceramic provides several important advantages compared with traditional ceramics and metals.
Exceptional Fracture Toughness
Zirconia has the highest fracture toughness among engineering ceramics, making it highly resistant to cracking and mechanical impact.
High Mechanical Strength
The material exhibits very high flexural strength and compressive strength, making it suitable for load-bearing precision components.
Excellent Wear Resistance
Zirconia ceramic surfaces maintain excellent durability and wear resistance even in abrasive environments.
Low Thermal Conductivity
The low thermal conductivity of zirconia helps maintain thermal insulation in high-temperature systems.
Chemical and Corrosion Resistance
Zirconia is chemically inert and resistant to many corrosive chemicals, acids, and alkalis.
Biocompatibility
High purity zirconia ceramics are biocompatible and widely used in medical and dental applications.
Application of Zirconia Ceramic
Lorem ipsum dolor sit amet, Due to its outstanding strength, toughness, and wear resistance, zirconia ceramic components are widely used in many high-performance industrial applications.
Wear-resistant Components
Because of their exceptional toughness and wear resistance, zirconia ceramic parts are widely used in pumps, grinding systems, and industrial processing equipment.
Precision Mechanical Parts
Wear-resistant zirconia parts such as ceramic bearings, valves, and guides are commonly used in precision mechanical systems.
Medical and Dental Devices
Zirconia ceramics are used in dental implants, surgical tools, and medical device components because of their biocompatibility and mechanical strength
Semiconductor Equipment
Zirconia ceramic components provide excellent stability and durability in semiconductor manufacturing equipment.
Electronics and Electrical Systems
Zirconia ceramics are used in oxygen sensors, insulating components, and electronic structural parts.
Common Zirconia Ceramic Grades
Several stabilized zirconia materials are commonly used in advanced ceramic manufacturing.
| Grade | Description |
|---|---|
| Y-TZP (Yttria Stabilized Zirconia) | Most widely used engineering zirconia with high strength and toughness |
| Mg-PSZ (Magnesia Partially Stabilized Zirconia) | Good thermal shock resistance |
| Ce-TZP (Ceria Stabilized Zirconia) | Improved resistance to low temperature degradation |
| Zirconia Toughened Alumina (ZTA) | Composite ceramic with enhanced wear resistance |
Among these materials, Y-TZP zirconia is the most common material used for precision zirconia ceramic components.
Why Choose HQ Precision Ceramic?
