Application: | Aerospace, Electronics, Medical, Industrial Ceramic |
---|---|
Color: | White |
Compressive Strength: | 2100-2500MPa |
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Material property
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|
Units
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96% Al2o3
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|
Color
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|
\
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White
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|
Medium Grain Size
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|
µm
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3-5
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|
Surface roughness
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|
µm
|
0.6max
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|
Density
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|
/m3
|
3780
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|
Rate of water absorption
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|
%
|
0
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|
Bending strength 4 point method (40 x 4 x3mm3)
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|
Mpa
|
400
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|
Dual ring method (0.63mm substrate thickness)
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|
Mpa
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500
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|
Modulus of Yang
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|
Gpa
|
340
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|
Thermal conductivity (20-100)
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|
W / M.K
|
24
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|
Specific heat
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|
j/kg.k
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800
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|
Coefficient of Linear expansion
|
20-300
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10-6/k
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6.8
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|
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20-600
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7.3
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|
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20-1000
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|
8
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Dielectric constant
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1 MHz
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|
9.8±10%
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|
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1 GHz
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|
10.0±10%
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|
Dielectric loss factor ( 1 MHz )
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|
10-3
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0.3
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|
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1mm
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kv/mm
|
15
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|
|
0.63mm
|
|
20
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|
|
0.25mm
|
|
28
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|
|
20
|
.cm
|
1013
|
|
|
200
|
|
1012
|
|
|
400
|
|
1011
|
|
|
600
|
|
108
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Alumina Ceramic Property
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|
|
|
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|
|||||
Property
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Unit
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92% Alumina Ceramic
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95% Alumina Ceramic
|
99% Alumina Ceramic
|
|||||
Density
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|
g/cm3
|
≥3.63
|
≥3.68
|
≥3.83
|
|||||
Water absorption
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|
%
|
O
|
O
|
O
|
|||||
Sintering temperature
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|
°C
|
1500-1700
|
1600-1800
|
1700-1800
|
|||||
Hardness
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|
HV
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≥1400
|
≥1500
|
≥1650
|
|||||
Flexural strength
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|
Kgf/cm2
|
3000
|
3000
|
3000
|
|||||
Compressive strength
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|
Kgf/cm2
|
24000
|
25000
|
26000
|
|||||
Fracture toughness
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|
Map.m3/2
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3~4
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3~4
|
4~5
|
|||||
Maximum temperature
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|
°C
|
1600
|
1700
|
1800
|
|||||
Coefficient of thermal expansion
|
|
/°C
|
8*10-6
|
8*10-6
|
8*10-6
|
|||||
Heat shock
|
|
T(°C)
|
220
|
220
|
220
|
|||||
Thermal conductivity
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|
W/m.k(25-300°C)
|
25 14
|
25 14
|
25 14
|
|||||
|
20°C
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|
>1012
|
>1012
|
>1012
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