Zirconia’s molecular structure gives it properties like those of a diamond, the hardest substance known to man. It is harder then steel, resists corrosion and has superior abrasion and wear resistance.
The following are some of the attributes:
• Stronger than steel (flexural strength: 145,000 psi)
• Harder than steel (1300 VHN w/500g. Load)
• Superior wear and abrasion resistance
• No corrosion EVER
• Competitive cost
• Superior thermal behavior
• Can withstand extreme temperatures - subzero to over 1000°C
• Thermal expansion comparable to that of steel (10.5 x10
/°C)
• Very low coefficient of friction against itself and steel (<0.3) vs. 1.0 to steel
The Advantages of Ceramic Zirconia
|
Young’s Modulus |
220 GPa (32 x 10 |
|
Flexural Strength |
980 MPa (145,000 psi |
|
Fracture Toughness |
7.1 MPa √m |
|
Coefficient of Linear Thermal Expansion |
10.5 x 10 |
|
Density |
6.08 g/cc |
|
Crystal Structure |
100% tetragonal |
|
Hardness (550 g load) |
1300 VHN |
/°C