Description
Sialon ceramic cutting tools
Sialon AC-50 with superior performance is derived from a unique combination of hardness, toughness and strength not found in standard syalon or silicon nitride-based cutting tools.
The newly developed Sialon ceramic cutting tools AC-50 series is one of the ideal types for turning and milling of all classes of cast iron. We offer a comprehensive range of sialon cutting products. The company’s newest product AC-50 is the latest types in silicon nitride based ceramic cutting tools ideal for all classes of cast iron.
New class of silicon nitride based Sialon ceramic cutting tools:
Silicon nitride and SiAlONs are the materials possessing unique combination of fracture toughness, hardness and strength and have potentials to be used in many industries.
A strive to further increase the reliability of this tools lead to the use of many sintering aids and densification methods involving pressure and pressureless sintering. The problem associated with fabrication of these ceramics has been how to impart high fracture toughness and, at the same time, retain high hardness and strength.
Sialon Ceramics Ltd has been a manufacturer and distributor of Silicon Nitride ceramics for the molten aluminum and non-ferrous industry since 1986. Please ask here for your request for quotation online.
| Material data sheet | Sialon (Si3Al3O3N5) | ||||
Typical Sialon ULTRA grades |
ULTRA-001 | ULTRA-002 | ULTRA-003 | ULTRA-004 | |
| Bulk Density | g/cm3 | 3.2 | 3.1 | 3.3 | 3.2 |
| Water Absorption | ％ | 0 | 0 | 0 | 0 |
| Flexural Strength | MPa | 580 | 900 | 1,020 | 790 |
| Vickers Hardness HV1 | GPa | 13.9 | 12.7 | 15.0 | 13.8 |
| Fracture Toughness （SEPB） | MPam1/2 | 4 ～ 5 | 6 ～ 7 | 7 | 6 ～ 7 |
| Young’s Modulus of Elasticity | GPa | 290 | 270 | 300 | 290 |
| Poisson’s Ratio | – | 0.28 | 0.28 | 0.28 | 0.28 |
| Coefficient of Linear Thermal (40 – 800 °C) Expansion |
×10-6/℃ | 3.2 | 3.4 | 3.3 | 3.5 |
| Thermal Conductivity （20℃） | W/(m・k) | 25 | 23 | 27 | 54 |
| Specific Heat | J/(g・k) | 0.64 | 0.66 | 0.65 | 0.66 |
| Heat Shock Resistance | ℃ | 550 | 800 | 800 | 900 |
| Volume Resistivity （20℃） | Ω・cm | >1014 | >1014 | >1014 | >1014 |
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