Introduction
Titanium dioxide ceramics (TiO₂) are advanced oxide ceramics valued for their corrosion resistance, mechanical durability, and electrical properties. These ceramics are a key subject for material science research, offering insights into oxide ceramic behavior. This article examines the key properties of titanium dioxide ceramics, supported by a properties table, to highlight their significance in research applications.
Properties of Titanium Dioxide Ceramics
Titanium dioxide ceramics exhibit a range of properties that make them ideal for material science studies. Below are their key characteristics:
- High Hardness: Vickers hardness from 13.5 to 14 GPa, suitable for wear resistance studies.
- Mechanical Strength: Flexural strength from 70 to 300 MPa and compressive strength up to 600 MPa, ideal for mechanical behavior research.
- Moderate Conductivity: Volume resistivity <10² ohm-cm, supporting electrical behavior studies.
- Corrosion Resistance: High chemical stability, perfect for corrosion studies.
- Fracture Toughness: Up to 8.5 MPa m¹/², providing insights into crack resistance.
Detailed Properties Table
The table below summarizes the properties of titanium dioxide ceramics.
Property | Value |
Main Characteristics | |
Color | White |
Main Applications | Anti-corrosion parts, medical ceramics |
Characteristics | High insulation, corrosion resistance |
Mechanical Properties | |
Bulk Density (g/cm³) | 3.99–4.0 |
Vickers Hardness (GPa) | 13.5–14 |
Flexural Strength (MPa) | 70–300 |
Compressive Strength (MPa) | Up to 600 |
Fracture Toughness (MPa m¹/²) | 8.5 |
Electrical Properties | |
Volume Resistivity (ohm-cm, 20°C) | <10² |
Table Notes:
- Mechanical Properties: High fracture toughness (8.5 MPa m¹/²) offers insights into crack resistance.
- Electrical Properties: Moderate conductivity (<10² ohm-cm) provides a basis for electrical studies.
- Chemical Stability: High corrosion resistance supports research into chemical durability.
Conclusion
Titanium dioxide ceramics, with their hardness, corrosion resistance, and moderate conductivity, are ideal for material science research. Their properties provide valuable insights into the behavior of oxide ceramics in various applications.
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