RocCera Tetragonal Zirconia (RTZ), also known as ceramic steel, is tougher than any other advanced technical ceramic available today. Imagine ceramic parts with the toughness of steel, but with greater surface hardness, higher abrasion and corrosion resistance.
A family of patented zirconia ceramics and composites was developed by Dr. Sam Ghosh at Kodak Research Labs to meet Eastman Kodak's demanding film manufacturing processes; processes that do not tolerate downtime; processes that generate high surface wear in a highly corrosive atmosphere. After his retirement from Kodak, Dr. Ghosh founded RocCera LLC in 2006 to design and manufacture advanced ceramic zirconia components.
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.
Net Shape Manufacturing
Net shape manufacturing focuses on the manufacture of discrete parts to net or near net dimensions. RocCera's net shape manufacturing technology eliminates diamond tooling and longer processing time associated with traditional advanced technical ceramic manufacturing for most applications, reducing cost by as much as 80%.
|Chemical composition||Zirconia + 3 mole% yttria|
|Particle Size||0.25 – 0.45|
|Crystal Structure||100% Tetragonal|
|Young's Modulus @ RT||Psi (MPa)||32 million (208)|
|Flexural Strength @ RT||Psi (MPa)||145,000 (982)|
|Vicker's Hardness||500 gram load||1300 VHN|
|Thermal Conductivity (RT)||Cal/cm. sec. °C||0.009|
|Coeff of Linear Thermal Expansion (40-100°)||/°C||10.5 X 10-6|
Properties of RocCera Tetragonal Zirconia (RTZ)