Technical ceramics offer decisive advantages for application under high mechanical load:
Further, more detailed information to this in the Breviary
* value indication not common | |||||||
Type | Designation | Open porosity | Density | Bending |
E-Module | Vickers hardness | Critical fracture |
max. Vol.% | [gcm-3] | [Nmm-2] | [GPa] | [103Nmm-2] | KIC [MPa√m] | ||
PSZ | Partially zirconia |
0 | 5 - 6 | 500 - 1000 | 140 - 210 | 12 - 20 | 8 |
ATI | Aluminium titanate | * | 3,0-3,7 | 25 - 40 | 10 - 30 | * | 1 |
SSN | Sintered silicon nitride |
* | 3 - 3,3 | 300 - 700 | 250- 330 | 4 - 18 | 5 - 8,5 |
RBSN | Reaction silicon nitride |
* | 1,9 - 2,5 | 80 - 330 | 80 - 180 | 80 - 10 | 1,8 - 4,0 |
HPSN | Hot-pressed silicon nitride |
0 | 3,2 - 3,4 | 300 - 600 | 290 - 320 | 15 - 16 | 6,0 - 8,5 |
AIN | Aluminium |
0 | 3,0 | 200 | 320 | 11 | 3,0 |
SSIC | Sintered silicon carbide |
0 | 3,08 - 3,12 | 300 - 600 | 370 - 450 | 25 - 26 | 3,0 - 4,8 |
SSIC | Silicon silicon carbide |
0 | 3,08 - 3,12 | 180 - 450 | 270 - 350 | 14 - 25 | 3,0 - 5,0 |
HPSIC | Hot-pressed silicon |
0 | 3,16 - 3,2 | 500 - 800 | 440 - 450 | 14 - 29 | 5,3 |
RSIC | Recrystallized Silicon carbide |
0 - 15 | 2,6 - 2,8 | 80 - 120 | 230 - 280 | 25 | 3,0 |
NSIC | Nitride bonded silicon carbide |
* | 2,82 | 200 | 150 - 240 | * | * |
Subgroup
as per IEC 672 |
Designation | Open porosity | Density | Bending |
E-module | Vickers hardness | Critical fracture |
max. Vol.% | [gcm-3] | [Nmm-2] | [GPa] | [103Nmm-2] | KIc [MPa√m] | ||
C 110 | Siliceous porcelain | < 0,5 | 2,2 | 20 | * | * | * |
C 111 | Pressed porcelain | 3 | 2,2 | 40 | * | * | * |
C 120 | Aluminous porcelain | 0 | 2,3 | 90 | * | * | * |
C 130 | Aluminous porcelain | 0 | 2,5 | 140 | * | * | * |
C 220 | Steatite | 0 | 2,6 | 120 | * | * | * |
C 221 | High frequency steatite2) | 0 | 2,7 | 140 | * | * | * |
C 230 | Special steatite porous | 35 | 1,8 | 30 | * | * | * |
C 310 | Titan dioxide | 0 | 3,5 | 70 | * | * | * |
C 410 | Cordierite | 0,5 | 2,1 | 60 | * | * | * |
C 511 | Porous cordierite ceramics | 20 | 1,9 | 25 | * | * | * |
C 520 | Porous cordierite ceramics | 20 | 1,9 | 30 | * | * | * |
C 530 | Porous cordierite ceramics | 30 | 2,1 | 30 | * | * | * |
C 610 | Alumino silicate (50-65% AI2O3) | 2,6 | 120 | * | * | * | |
C 620 | Alumino silicate (65-80% AI2O3) | 0 | 2,8 | 150 | * | * | * |
C 780 | Alumina ceramics 80% | 0 | 3,2 | 200 | 200 | 12-15 | 3,5-4,5 |
C 786 | Alumina ceramics 86% | 0 | 3,4 | 250 | 220 | 12-15 | 4-4,2 |
C 795 | Alumina ceramics 95% | 0 | 3,5 | 280 | 220-350 | 12-20 | 4-4,2 |
C 799 | Alumina ceramics 99% | 0 | 3,7 | 300 | 300-380 | 17-23 | 4-5,5 |
C 820 | Magnesia | 30 | 2,5 | 50 | * | * | * |
C 910 | Aluminium nitride | 0 | 3,0 | 200 | * | * | * |
We recommend to the manufacturer for specific data, because data shown above are average values and there improved values are available. The stated values were determined on specimen as per IEC 60672-2, and cannot be applied to other shapes and dimensions easily.