Zirconia knife is a type of cutting tool made from zirconium dioxide (ZrO2) ceramic material. Zirconia knives are known for their hardness, sharpness, and resistance to wear and corrosion. They are typically used in food preparation and other applications where a precise and sharp cutting edge is required. Zirconia knives are also known for their lightweight and non-reactive properties, which make them an attractive alternative to traditional steel knives.
Parameter | Value |
---|---|
Composition | ZrO2 (zirconium oxide) |
Density | 5.9 - 6.1 g/cm3 |
Hardness | 1200 - 1300 HV |
Flexural strength | 800 - 1200 MPa |
Compressive strength | 2000 - 2500 MPa |
Young's modulus | 200 - 250 GPa |
Thermal expansion coefficient | 9.0 - 11.0 × 10-6/K |
Thermal conductivity | 2.0 - 3.0 W/mK |
Maximum operating temperature | 2400 °C (in air), 2000 °C (in vacuum/inert gas) |
Electrical conductivity | Low |
Optical transparency | Partially transparent |