DATA SHEET: SILICON NITRIDE
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10 rue des rosiéristes
ZAC des carrés du parc
69410 Champagne au Mont d’or
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Fax : +33 (0)4 78 28 63 68
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http://www.sceram.com
Basic Properties :
Applications:
Excellent mechanical properties even at high temperature
Light. Low inertia
High hardness
Excellent resistance to friction and wear
Very high resistance to thermal shocks
Welding nozzles
TIG and plasma cutting (RSBN)
Bearings, shell bearings
Metal working tools
Inspection gauge
Bearing balls.
Material
Chemical formula
Aspect / color
Porosity
Mechanical
Poisson ration
Hardness
Young modulus
Mechanical strength (flexion at 3 pts) at 800°c
Mechanical strength (flexion at 3 pts) at 20°c
Mechanical strength (flexion at 3 pts) at 1000°c
Crushing resistance at 20°c
Crushing resistance at 800°c
Tensile strength at 20°c
Tenacity
Physical
Maximum use temperature
Open porosity
Electrical
Specific heat
Thermal
Thermal conductivity at 20°c
Thermal conductivity at 500°c
Thermal shock resistance
Linear expansion
Silicon Nitride
Si3N4
Black
Impervious
Measuring Unit
Vickers
GPa
MPa
MPa
MPa
MPa
MPa
MPa
MPa.m½
0,26
1400
315
200
200
1400
1400
120
2,5 (Mpa/volume)
°c
%
1500
20
J/Kg.°K
700
W/m.°K
W/m.°K
°C
x10-6
18
18
Very good
2,9
*These datas are for informa0on purpose only. They do not engage SCERAM’s responsibility.