Yixing Minghao Special Ceramic Technology Co., Ltd. |
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Zirconia Ceramic Jewelry Ring Diamond Cutting Ceramic Ring
zirconia has potential for use in a wide variety of applications. The pure form crystal structure changes limit mechanical applications, however zirconia dioxide material stabilized with Calcium, Magnesium or Yttrium Oxides has good characteristic of higher strength, hardness and particularly toughness. In addition, the material has low thermal conductivity to be an ionic conductor above 600°C which can apply in oxygen sensors and high temperature fuel cells.
Item | Unit | Zirconia | |
Physical Characteristics | Heat resistance | 0C | 2200 |
Bulk density | g/cm3 | 6.05 | |
Water absorption | % | 0 | |
Mechanical Characteristics | Flexural strength | Mpa | 1000 |
Hardness vickers | Gpa | 89 | |
Elastic modulus | Gpa | 200 | |
Poisson’s ratio | 0.31 | ||
Thermal Characteristics | Linear expansion coefficient | (20-5000C) 10-6/0C | 10 |
Thermal conductivity | w/(m.k) | 2.5 | |
Specific Heat | *10-3J/(kg*K) | 0.5 | |
Electrical Characteristics | Dielectric constant (1MHZ) | - | N.A. |
Dielectric loss angle | *10-4 | N.A. | |
Dielectric strength | *106V/m | N.A. |