Comparison of Physical Properties of Ceramics
International Syalons offer a range of Syalon and Zircalon ceramics which will meet your needs in many testing industrial environments.
In an effort to show how our materials offer a unique set of physical properties, the tables below compare some properties of the various Syalons and Zircalon with a number of competitive materials such as alumina (Al2O3), reaction bonded silicon nitride (RBSN), mullite and silicon carbide (SiC). (Comparitive data comes from technical literature).
RT MOR (MPa)
| Material |
MOR |
| RBSN |
180 |
| Mullite |
180 |
| Alumina |
350 |
| SiC |
459 |
| Syalon 110 |
500 |
| Syalon 050 |
800 |
| Syalon 501 |
825 |
| Syalon 101 |
945 |
| Zircalon 5 |
1000 |
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MOR at 1000 °C (MPa)
| Material |
MOR at 1000°C |
| Alumina |
205 |
| Syalon 110 |
400 |
| SiC |
430 |
| Syalon 101 |
670 |
| Syalon 050 |
750 |
Note RBSN, mullite, Syalon 501 and Zircalon 5 could not be tested at 1000°C.
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Room temperature Hardness
| Material |
Hardness (Hv0.3 Kg/mm2) |
| RBSN |
800 |
| Mullite |
1100 |
| Syalon 110 |
1200 |
| Zircalon 5 |
1350 |
| Syalon 501 |
1370 |
| Alumina |
1400 |
| Syalon 101 |
1500 |
| Syalon 050 |
2000 |
| SiC |
2200 |
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Fracture Toughness K¹C
| Material |
K¹C (MPam½) |
| Mullite |
2.0 |
| RBSN |
2.5 |
| Alumina |
3.5 |
| Syalon 110 |
3.5 |
| SiC |
4.3 |
| Syalon 501 |
5.7 |
| Syalon 050 |
6.5 |
| Syalon 101 |
7.7 |
| Zircalon 5 |
9.0 |
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Thermal Shock Resistance
| Material |
ΔT°C quenched in cold water |
| SiC |
180 |
| Alumina |
205 |
| Zircalon 5 |
250 |
| RBSN |
300 |
| Mullite |
305 |
| Syalon 501 |
400 |
| Syalon 050 |
600 |
| Syalon 110 |
800 |
| Syalon 101 |
900 |
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Room Temperature Thermal Conductivity
| Material |
λ (W/(mK)) |
| Zircalon 5 |
2 |
| Mullite |
6 |
| RBSN |
14 |
| Syalon 501 |
19.1 |
| Syalon 050 |
20 |
| Syalon 110 |
27 |
| Syalon 101 |
28 |
| Alumina |
29 |
| SiC |
100 |
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Please see our materials section for more information on the ceramics we manufacture.
