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Silicon Nitride (Si3N4) Balls
  • Silicon Nitride (Si3N4) Balls
  • Silicon Nitride (Si3N4) Balls

Silicon Nitride (Si3N4) Balls

SILICON NITRIDE (Si3N4) BALLSLight weight ceramic material balls, they provide very good mechanical/thoughness properties and

SILICON NITRIDE (Si3N4) BALLS


Light weight ceramic material balls, they provide very good mechanical/thoughness properties and corrosion resistance. They are auto lubricant materials and good electric insulators. They have excellent resistance to thermal shocks.

 

Applications

Special bearings, high-speed bearings, under vacuum pumps, compressors, centrifugal pumps, shafts/mandril, recirculating balls, flow meters, measurement instruments. They are used in aerospace and military industry.

 

Commercial name

Other name

Formula

Nitride %

Silicon Nitride

Nierite

Si3N4

90.0-95.0

 

Physical / Mechanical / Thermal / Electric / Magnetic Properties

Property

Symbol

U.o.M.

Type

Notes

Value

Density

δ

g/cm3

Physical

Room temp.

3.26

Young's modulus

E

GPa

Mechanical

-

300

Friction coefficient

µ

-

Mechanical

Room temp.

0.1

Specific heat

c

J/(kg·℃)

Thermal

Room temp.

740

Coefficient of linear thermal expansion

α

10-6/ºC

Thermal

(ΔT=0-100°C)

3.4

Thermal conductivity

λ

W/(m·K)

Thermal

Room temp.

23.0

Electric resistivity

ρ

Ω*m*10-9

Electric

-

> 1013

Relative magnetic permeability

µ

-

Magnetic

Diamagnetic

<1


Technical Data

Property

Type

U.o.M.

Values

U.o.M.

Values

Hardness

Mechanical

HV

1400-1600

-

-

Ultimate compressive strength

Mechanical

MPa

2300-4000

psi*103

334-580

Service temperature

Thermal

ºC

0/1200

ºF

32/2192


Rang

Diameters

U.o.M.

Diameters

U.o.M.

Precision Grade (ISO 3290)

2.381 - 50.800

mm

3/32 - 2

inch

G10 -......- G1000

 

Corrosion Resistance

Excellent corrosion resistance in all almost corrosive environments, apart from acids (except sulphuric acid) and basic solutions at high concentrations.