Aluminum Nitride Ceramic Heater

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Aluminum Nitride Ceramic Heater

The aluminum nitride (AlN) ceramic has high thermal conductivity(5-10 times as the alumina ceramic), low dielectric constant and dissipation factor, good insulation and excellent mechanical properties, non-toxic, high thermal resistance, chemical resistance ,and the linear expansion coefficient is similar with Si,which is widely used in communication components, high power led, power electronic devices and other fields.Special spec products can be produced upon requests.

Aluminum Nitrides (AlN) combine high thermal conductivity with strong electrical resistance, making AlN an excellent solution for many electronic applications. Unlike most electrically insulative materials — which are often also thermally insulative — AlN allows electrical systems to dissipate heat quickly in order to maintain maximum efficiency.
Aluminum Nitride Ceramic Heater

Main Features

Compact ,Light-Weight and Energy-Conserving
· High watt density, good thermal efficiency
· Laying of multiple heating elements per unit is available Superior Thermal Properties
· Rapid heat increase
· Custom designed temperature distribution available
· High levels of insulation allow direct contact with water, kerosene and metal High Reliability
· Superior dielectric strength and electrical insulation
· Longer life due to oxidation-proof design on resistivity material
· Superior chemical resistance
Aluminum Nitride Ceramic Heater
Properties Sheet
Property
Unit
Alumina Nitride Ceramic
Color
Grey
Mechanical Properties
Density
g/cm3
3.31
Compressive Strength
MPa
2100
Flexural Strength
MPa
335
Vickers Hardness 
GPa
11
Thermal Properties
Maximum Temperature
                                Oxidizing
°C
700
Inert
°C
1300
Thermal Conductivity 
30
@ 25°C
W/mK
180
@ 300°C
W/mK
130
Coefficient of Expansion
CTE 25°C ➞ 100°C
10^-6/°C
3.6
CTE 25°C ➞ 300°C
10^-6/°C
4.6
CTE 25°C ➞ 500°C
10^-6/°C
5.2
CTE 25°C ➞ 1000°C
10^-6/°C
5.6
Specific Heat
100°C
750
Thermal Shock Resistance ΔT
°C
400
Electrical Properties
Dielectric Constant
1 MHz
8.6
Dielectric Strength 
kV/mm
>15
Loss Tangent
1 MHz
5×10^-4

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