| Customization: | Available |
|---|---|
| Color: | Black |
| Material: | Silicon Nitride |
|
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| Silicon Nitride Precision Ball Physical Properties | ||||||
|
AL2O3 conent %
|
60
|
75
|
85
|
95
|
99
|
99.7
|
|
Bulk density(g/cm3)
|
3
|
3.1
|
3.4
|
3.7
|
3.81
|
3.85
|
|
Flexural Strength(MPa)
|
205
|
280
|
230
|
304
|
340
|
370
|
|
Coefficient of linear expansion(×10-6/ºC)(25-800ºC)
|
7.1
|
7.6
|
7.6
|
7.3
|
7.6
|
7.6
|
|
Thermal conductivity[w/(m.R)]
|
16
|
17
|
17
|
20
|
34
|
35
|
|
Insulated strength(KV/mm)
|
10
|
10
|
10
|
10
|
10
|
10
|
|
Bulk density resistance(Ω.cm)20ºC
|
>1014
|
>1014
|
>1014
|
>1014
|
>1014
|
>1014
|
|
300ºC
|
>1013
|
>1013
|
>1013
|
>1012
|
>1010
|
>1010
|
|
Long term operating temperature (ºC)
|
1350
|
1000
|
1290
|
1480
|
1600
|
1700
|
|
Hardness
|
7.5
|
7.5
|
7.5
|
8.8
|
9
|
9
|
|
Refractoriness
|
1800
|
1700
|
1850
|
2000
|
2030
|
2040
|
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