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RocCera Ceramic: Advantages

RocCera Tetragonal Zirconia's (RTZ) 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

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Young’s Modulus

220 GPa (32 x 10 psi)

Flexural Strength

980 MPa (145,000 psi

Fracture Toughness

7.1 MPa √m

Coefficient of Linear Thermal Expansion
(40 – 400°C)

10.5 x 10/°C

Density

6.08 g/cc

Crystal Structure

100% tetragonal

Hardness (550 g load)

1300 VHN

Properties of Tetragonal Zirconia

Ceramic zirconia is stronger than steel.