Zirconia ceramics are extremely tough with outstanding impact resistance qualities. This denotes a balance between hardness, toughness, and strength which enables zirconia ceramics to withstand extremely high amounts of friction. ... Zircalon 10: hardness value of 13.24 GPa. Zircalon 20: hardness value of 11.77 GPa.May 22, 2019
What is alumina crucible?
Alumina Crucible is made of raw material aluminum oxide. Alumina is a ceramic material with high thermal conductivity, compressive strength, high temperature resisitance and thermal shock resistance. ... In addition, it can be easily combined with metals and other ceramic materials using brazing techniques and metalizing.Nov 8, 2019
What are high temperature crucibles?
High Temperature Sialon crucibles up to 1,800 degrees Celsius (in a controlled atmosphere), and have good resistance to chemical erosions and thermal shock. Sialon crucibles are an excellent alternative to graphite crucibles for the melting of aluminum, copper and other metals.