3mm Silicon Nitride Reaction Bonded Sphere
3mm Silicon Nitride Reaction Bonded Sphere
SKU:SIL-8ad650
High-performance 3mm Silicon Nitride Sphere for demanding industrial applications. Exceptional strength and resistance to high temperatures and corrosive environments.
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                The 3mm Silicon Nitride Reaction Bonded Sphere offers superior mechanical properties with a Vickers hardness of 800-1000 Kgf mm-2 and a tensile strength of 160 MPa. With excellent resistance to chemicals and molten metals, it is ideal for gas turbine components, automotive bearings, and high-temperature applications up to 1400°C. The precision sphere's thermal properties, including a low coefficient of thermal expansion and high thermal conductivity, make it a reliable choice for continuous temperature cycling environments.
              
Product Specifications
                  Chemical Resistance Alkalis 
                
                Fair
              
                  Chemical Resistance Concentrated Acids 
                
                Fair
              
                  Chemical Resistance Dilute Acids 
                
                Good
              
                  Chemical Resistance Halogens 
                
                Good
              
                  Chemical Resistance Metals 
                
                Fair
              
                  Electrical Properties Dielectric Constant 
                
                10.0
              
                  Electrical Properties Volume Resistivity At 25 Degree Celsius C 
                
                >107 µΩ·cm
              
                  Material Material 
                
                Silicon Nitride - Reaction BondedReaction Bonded Silicon Nitride is produced by nitriding compacted Silicon powder. This production route is considerably more cost-effective than hot-pressing. Very complex and accurate shapes can be produced, which hold their shape during firing. After firing, as for Hot Pressed Silicon Nitride, it can be diamond ground to tolerances as close as 0.01mm. Although not as strong as Hot Pressed Silicon Nitride, its strength is held up to 1400C, with long term oxidation resistance up to 1150C. The thermal and electrical properties of the two forms of Silicon Nitride are however very similar. This form finds use as supports in situations of continuous temperature cycling within ranges of up to 1000C, as well as for gas turbine components. Reaction Bonded Silicon Nitride is resistant to a wide range of chemicals and molten metals. Silicon Nitride spheres have found use as bearings in the automotive industry, as they have high wear resistance and have a coefficient of friction and a density much lower than steel.
              
                  Mechanical Properties Hardness Vickers 
                
                800 to 1000 Kgf mm-2
              
                  Mechanical Properties Shear Strength 
                
                190 to 240 MPa
              
                  Mechanical Properties Tensile Modulus 
                
                170.00 to 220.00 GPa
              
                  Mechanical Properties Tensile Strength 
                
                160.00 MPa
              
                  Physical Properties Apparent Porosity 
                
                15.00 to 23.00 %
              
                  Physical Properties Density 
                
                2.400 g·cm-3
              
                  Pultrusion Compressive Strength 
                
                550 to 650 MPa
              
                  Specifications Diameter 
                
                3 mm
              
                  Specifications Form 
                
                Sphere
              
                  Specifications Quantity 
                
                10 to 100 Piece
              
                  Specifications Sphericity 
                
                0.625 µm
              
                  Specifications Surface Finish 
                
                Polished
              
                  Specifications Tolerance 
                
                2.5 µm
              
                  Thermal Properties Coefficient Of Thermal Expansion At 20 To 100 
                
                3.300 x10-6 K-1
              
                  Thermal Properties Specific Heat At 25 Degree Celsius C Temperat 
                
                690.0 J K-1 kg-1
              
                  Thermal Properties Thermal Conductivity At 20 Degree Celsius C T 
                
                10.00 to 16.00 W m-1K-1
              
                  Thermal Properties Upper Continuous Use Temperature 
                
                1200 to 1500 ºC
              
                  Tolerances Diameter Tolerance 
                
                0.5 mm
              
                  Type Type 
                
                Precision SphereCeramicCeramics are non-metallic, non-organic materials. They exhibit excellent resistance to high temperatures. Although they have comparatively low densities, they are extremely hard but tend to be brittle. They show good resistance to both abrasives and chemicals.