China (Mainland)
The extremely pure alumina ceramic, we have an exceptional degree of translucency. They are used in making translucent ceramic arc tubes for high pressure sodium lamps, which are in high demand as an energy efficient light source.
Properties
Unit
Data
α-Al2O3 Content
%
≥99.9
Volume Density
g/cm³
3.96
Linear Exp. Coefficient
×10-6mm/°C
6.5-8
Dielectric Constant
IMHz
10.3
Breakdown Strength
KV/mm
≥64
Resistivity
Ω·cm
4.5×1015
Fracture Strength
MPa
≥350
Transmittivity
%
≥95
5.0
4.95
62
6.8
6.7
90
7.8
8.8
7.7
8.7
162
150
55
58
6.3
58
230
-
5.0
4.95
6.5
60
6.8
6.7
8.3
90
4.1
7.8
8.8
7.7
8.7
9.3
10.3
4.1
162
150
55
3.1
3.1
62
230
-
ZTT type
Type watts
1
2
3
4
5
6
7
NG50W
52.2
0.60
4.45
3.0
3.25
NG70W
58.2
0.60
5.20
-
3.0
2.1
-
0.6
4.00
NG100W
64.8
0.60
-
5.20
3.0
2.1
-
0.6
4.00
NG150W
74.0
86.2
0.60
-
6.20
3.0
2.1
3.10
0.6
5.00
NG210W
86.0
8.20
3.0
6.80
6.80
8.20
3.0
6.80
6.80
NG250W
92.2
0.70
-
8.20
4.5