Silicon Nitride Structure Parts

Silicon nitride offers a number of benefits, such as low friction, high wear and chemical resistance, high temperature capability and high electrical resistivity. It is nonmagnetic, has low specific weight, and offers long service life. Recently, silicon Nitride has been used in the brake discs of the McLaren P1, a highly sophisticated road car.

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CHARACTERISTIC

TECHNICAL DATA

APPLICATIONS

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CHARACTERISTIC

TECHNICAL DATA

Characteristics		Unit	Silicon Nitride
Thermal/mechanical properties	Density	g/cm³	≥3.2
	Elastic Modulus	GPa	300～320
	Vicker’s Hardness	GPa	14～16
	Flexural strength	MPa	600～900
	Compressive Strength	MPa	3000～3500
	Fracture Toughness	MPa·m^1/2	5～7
	Thermal Expansivity	X10^-6/K	3.2
	Thermal Capacity	J/Kg·K	800
	Thermal Conductivity	W/m.k	20-85
	Poisson Ratio		0.26～0.29
	Dielectric Breakdown Strength	KV/cm	150
Service performance	Max. Usable Temperature	℃	1200
	Thermal Shock Resistance	△T℃	600～700
	Electric Insulation	/	Good
	Corrosion Resistance	/	Good

APPLICATIONS

1.Balls and rolling elements for light
2.Extremely precise bearings
3.Heavy-duty ceramic forming tools
4.Automotive components subject to high stress

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