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Aluminium nitride ceramics
Aluminium nitride ceramics
AlN ceramics have excellent comprehensive performance and have very wide application foreground in many areas . It is perfect for semiconductor chip and structure of packaging material. A enormous potential application in the electronics industry.AlN ceramics are also high temperature resistance , corrosion resistance and not erosion by variety of molten metal and molten hydrochloric.So it can be used for high grade refractory and crucible materials. Also can be used for anticorrosive coating,for example back boxing of vessel which put the corrosive substance.High purity is transparent and can be used for electronic optics . Also have excellent wear resistance which can be used for abrasive substance and resistant to wear and tear parts.
Main Technical Parameters
|
Grade |
|
AlN-HT170 |
AlN-S170 |
|
AlN% Chemical structure |
% |
≥99.5 |
≥99.5 |
|
Production Process |
|
Hot Pressing |
Atmosphere Sintering |
|
Density |
g/cm3 |
≥3.26g/cm3 |
≥3.3g/cm3 |
|
Thermal conductivity at 20℃ |
W/m.k |
≥170 |
≥170 |
|
Surfaceness |
um |
≤ 2 |
≤ 2 |
|
Hardness |
HL |
800 |
750 |
|
Flexural Strength |
Mpa |
≥350 |
≥350 |
Features & Advantages
● High thermal conductivity
● Match the semiconductor wafer expansion coefficient
● High insulation resistance and voltage resistance strength
● Low dielectric constant and dielectric loss is small
● High mechanical strength
● Suitable for stretch forming process
Application
● Applied in crucible which produce compound semiconductor single crystal
● As substrate of high frequency surface acoustic wave devices
●Shoot target of high purity aluminum nitride thin film
● Infrared and microwave window material