Reaction Bonded Silicon Nitride/Si3N4 Balls

Formula: Si₃N₄

Form: Ball/Sphere

Material: Reaction Bonded Silicon Nitride/Si3N4

Commodity: Ceramics

Type: Precision Sphere

Sphericity: 0.625µm

Reaction Bonded Silicon Nitride/Si3N4 Balls from Goodfellow are high-performance ceramic balls made of silicon nitride. With high hardness and excellent wear resistance, these Si3N4 balls are ideal for applications like ball bearings, valves, and seal rings. Goodfellow offers Reaction Bonded Silicon Nitride/Si3N4 Balls in 6 quantities. The combination of properties like high strength, low density, and chemical stability make these silicon nitride balls suitable for demanding mechanical applications across industries like aerospace, automotive, and general engineering.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Ball/Sphere

Diameter	Standard	±5%
Diameter	Precision	See Item

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