Reaction Bonded Silicon Nitride/Si3N4 Tube

Formula: Si₃N₄

Form: Tube

Material: Reaction Bonded Silicon Nitride/Si3N4

Commodity: Ceramics

Inside Diameter: 5mm

Reaction Bonded Silicon Nitride/Si3N4 Tube is a tubular product manufactured by Goodfellow that is made of silicon nitride (Si3N4). Silicon nitride is known for its high strength and fracture toughness at high temperatures. This advanced ceramic material also has excellent thermal shock resistance. Reaction Bonded Silicon Nitride/Si3N4 Tube is available for use in applications that require tubes capable of withstanding very high temperatures, such as gas turbines, heat exchangers, and automotive engines. Goodfellow offers this tubular product in 2 sizes to suit different requirements.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Tube

Outside Diameter	=<2mm	±10%
Outside Diameter	=<5mm	±10%
Outside Diameter	>5mm	±10%
Wall Thickness		±20%

Material Properties for Ceramics

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