|
|
|
|
|
Grade of Sintered/HIPed Si3N4
|
PSX-H
|
PSO-H1
|
|
|
Bulk
Density
|
g/cmˆ3
|
3.28
|
3.28
|
|
|
Flexural
Strength,
(4-Pt MOR) @RT
|
Ksi
MPa
|
113
780
|
110
760
|
|
|
Characteristic
Strength
|
MPa
|
825
|
805
|
|
|
Weibull
Modulus (m)
|
|
14
|
16
|
|
|
Elastic
Modulus (E)
|
GPa
|
300
|
275
|
|
|
Poisson's
Ratio (v)
|
|
0.27
|
0.24
|
|
|
Hardness
(Vickers 5.0 kg)
|
kg/mmˆ2
|
1510
|
1600
|
|
|
Fracture
Toughness
(Chevron Notch)
|
MPa-mˆ1/2
|
5.9
|
6.5
|
|
|
Thermal
Expansion
(RT-1000° C)
|
10ˆ-6/°C
|
3.3
|
3.3
|
|
|
Thermal
Conductivity
@RT
|
(W/m-K)
|
30
|
20
|
|
|
Electrical
Resistivity
|
|
>10ˆ14
|
>10ˆ14
|
|
|
ADVANCED CERAMICS produces
two grades of Sintered/HIPed Silicon Nitride (Si3N4) for high performance wear
applications in which no micro-porosity is permissible. These materials have
an exceptional combination of high toughness and hardness that makes them
excellent for bearing and other wear applications. ADVANCED CERAMICS produces
these materials in sizes up to 2 1/4" balls.
The chart to the left lists typical properties.
|
|
|
