Properties
General
Mechanical
| Property | Value | Testing Standard | Comment |
|---|---|---|---|
Elastic modulus | 340 GPa Show Supplier Material materials with Elastic modulus of 340 GPa | EN DIN 843-2 | Ultrasonic |
Flexural strength | 220 MPa Show Supplier Material materials with Flexural strength of 220 MPa | EN DIN 843-1 | min. | 4-point bending 20/40 mm | spacing 46x4x3 mm specimen size | ground surface 20°C |
Plane-Strain Fracture Toughnes | 2 MPa·√m Show Supplier Material materials with Plane-Strain Fracture Toughnes of 2 MPa·√m | EN DIN 14425 | SEVNB 4-point bending 20/40 mm | Spacing 46x4x3 mm | Specimen size 20°C |
Poisson's ratio | 0.18 [-] Show Supplier Material materials with Poisson's ratio of 0.18 [-] | EN DIN 843-2 | |
Weibull modulus | 10 [-] Show Supplier Material materials with Weibull modulus of 10 [-] | 4P | min. |
Thermal
| Property | Value | Testing Standard | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 4e-06 1/K Show Supplier Material materials with Coefficient of thermal expansion of 4e-06 1/K | DIN EN 821-2 | 20–100°C |
Thermal conductivity | 160 W/(m·K) Show Supplier Material materials with Thermal conductivity of 160 W/(m·K) | 20-100°C |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Additive manufacturing SiSiC. ROCAR®3D - Ceramics in new dimensions Maximum flexibility, time and cost savings and highest product quality: 3D printing technology impresses with numerous, often decisive advantages. At CeramTec, more than 100 years of expertise in the field of advanced ceramics meet the spirit of innovation. We provide you with competent support in product development, from the initial idea to the finished product. Design freedom Experience complete design freedom with silicon carbide, a unique material in one of the most innovative manufacturing processes of our time: 3D printing. Create form and function parts with us in lightweight construction because only necessary elements are built up in the component. Get the finished part faster, without time-consuming and cost-intensive processing steps such as green part machining, milling or joining, and leverage further cost reduction potential through part optimization. With material thicknesses from 2 mm to 35 mm and hole diameters from 2 mm on, you have a wide range of design options Unbeatable process advantages of 3D printing: Maximum flexibility and reliability CeramTec has succeeded in optimizing the material properties of additively manufactured SiSiC components in such a way that the material characteristics correspond to conventionally manufactured components except for a few percentage points. The use of fine silicon carbide powder enables free structures and demanding surface finishes. The very high hardness combined with the temperature and chemical resistance withstand the most demanding operating conditions. The 10% lower density than metal, together with the reduced material usage in the additive process, results in low component weights. Advantages of our SiSiC 3D printing technology Maximum design freedom | |
| Chemical composition | SiC content: 70-75% Si content: 25-30% | |
| Other | Sintered silicon carbide is created when prepressed and very soft SiC granulate is sintered at a temperature of more than 2,000 °C, when very strong sintering bonds between the material grains are formed. Firstly, there is lattice densification, then the porosity is lowered, and finally, sintering bonds between the grains of SiC are formed. This firing process has considerable product shrinkage of about 20 %. The final material is single-phase with higher hardness, heat and chemical resistance than SiSiC. Unbeatable process advantages of 3D printing: | |