UltraHard Materials Limited
Silicon Nitride is probably the most common engineering ceramic that is currently being used in applications where a higher performance material is required despite its low fracture toughness.
Table 8 lists the mechanical properties of UHMís CeTZP compared to Silicon Nitride (from references 4,5,7,15).
#estimated from bend strength
+ higher values can be obtained when lower indenter loads are used during Vickers hardness measurements (reference 10).
[All our mechanical tests were carried out on UHM's CeTZP billets. A LECO test machine for our indentation macrohardness tests utilized 30 kg loads; K1c values were calculated from crack lengths derived from these indentation tests using the equation of Anstis el alia (reference 10)]
UHMís CeTZP engineering ceramic has some clear mechanical property advantages over Silicon Nitride and they are:
Table 9 lists the thermal properties of CeTZP compared to Silicon Nitride (from references 4,5,7,15)
CeTZP engineering ceramic has some thermal property advantages over Silicon Nitride and they are:
|UltraHard Materials Ltd is an Engineering Ceramic Components Producer © 2003 All rights reserved.|