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Reaction Bonded Silicon Nitride Rod (Si₃N₄)

Available Configurations

Properties common to all products in this list

Grade: Reaction Bonded Composition: Si₃N₄ Form: Rod Material: Silicon Nitride Commodity: Ceramics
Reaction Bonded Silicon Nitride (Si₃N₄) Rod exhibits high strength, wear resistance, and remarkable thermal stability, making it an advanced ceramic suitable for demanding environments. Its low density and resistance to oxidation and corrosion under high temperatures make it highly valuable in aerospace, automotive, and power generation industries. Specific applications include turbine components, rolling contact elements, and high-temperature structural supports. Researchers utilize Si₃N₄ rods in tribological studies, high-performance composites, and advanced ceramic testing for fatigue and thermal shock resistance. The rod geometry ensures excellent machinability into precision parts, maintaining both durability and structural performance. Its combination of mechanical strength and chemical inertness ensures vital use in both industrial engineering and scientific research where metals cannot meet performance demands.
Starting at $520.00 each
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Material Properties

Chemical Resistance
Element Value
Acids - concentrated Fair
Acids - dilute Good
Alkalis Fair
Halogens Good
Metals Fair
Electrical Properties
Element Value
Dielectric constant 10
Volume resistivity( Ohmcm ) >10⁷@25
Physical Properties
Element Value
Apparent porosity( % ) 15-23
Density( gcm⁻³ ) 2.4
Thermal Properties
Element Value
Upper continuous use temperature( C ) 1200-1500
Specific heat( J K⁻¹ kg⁻¹ ) 690@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 10-16@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 3.3@20-1000°C
Mechanical Properties
Element Value
Tensile modulus( GPa ) 170-220
Hardness - Vickers( kgf mm⁻² ) 800-1000
Shear strength( MPa ) 190-240
Tensile strength( MPa ) 160
Pultrusions
Element Value
Compressive strength( MPa ) 550-650
each

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Available Configurations

Properties common to all products in this list

Grade: Reaction Bonded Composition: Si₃N₄ Form: Rod Material: Silicon Nitride Commodity: Ceramics

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Tolerances

Rod
Diameter +20% / -10%