Zirconia : ZrO2, material with the very good mechanical properties cold. It is able to be colored for jewelry applications, it has excellent mechanical properties at high temperatures, weak thermal conductivity at room temperature, conductor in T> 1000°C, great hardness, good wear resistance.
Alumina : ZrO2, material with the very good mechanical properties cold. It is able to be colored for jewelry applications, it has excellent mechanical properties at high temperatures, weak thermal conductivity at room temperature, conductor in T> 1000°C, great hardness, good wear resistance.
Silicon Nitride (Si3N4) : Silicon nitride is among the hardest and most resistant technical ceramics. It has also highly resistant to thermal shocks, wear, and corrosion (liquid and gas). Some applications are in pump and valve components, semiconductors, among others.