China High-Purity Al2o3 Ceramic Substrate for Electronic Application

High-purity Al2O3 Ceramic Substrate for Electronic Application
1. Direct manufacturer, factory SGS,ISO audited.
2. Electrical insulation
3. Wear resistant
4. High-purity, 99.7% alumina max

1. Advanced ceramics - Change the world!

a) Low density

b) High hardness

c) High mechanical strength

d) Dimensional stability (specific stiffness)

e) Resistance to wear

f) Resistance to corrosion (resistance to chemical attack)

g) Weathering resistance

h) High working temperature
i) Low or high thermal conductivity

2. Properties of Alumina Al2O3

Alumina (Al2O3) is a hard, chemically resistant material and has the ability to withstand very high temperatures in aggressive environments. We offers Alumina with various purity levels, including 95% and 99.7%. The level of purity, grain size, and density required is dependent on the rigors of the application and the component configuration.

Table1:Technical Parameter Of Alumina CeramicsItem Test conditionUnit&Symbol 95%
Alumina Ceramics 99%
Alumina Ceramics99.7%
Alumina CeramicsThe Main
Chemical Ingredient Al2O3Al2O3Al2O3Bulk Density g/cm³>3.63.893.96Maximum Use Temperature ºC145016001650Water Absorption %000ROHS Hardness ≥85≥ 89≥89Flexural Strength20 ºCMpa(psi*10³)358(52)550550Compressive Strength20 ºCMpa(psi*10³)2068(300)2600(377)2600(377) Fracture ToughnessK(lc)Mpa m 1/24-55.66 Coefficient Of Thermal Expansion25-1000 ºC1*10 -6 /ºC7.67.98.2 Coefficient Of Thermal Conductivity20 ºCW/mk1630.030.4 Thermal Shock ResistanceΔTcºC250200200 Dielectricity Constant1MHz.25 ºC 99.79.7 Dielectricity Strength ac-kV/mm(ac V/mil)8.3(210)8.7(220)8.7(220) Volumn Resistivity100 ºCohm-cm>10 13>10 14>10 14