Electrialc Insulation 99% Aluminum Oxide Ceramic Plate High Temperature Resistance

We manufactures custom technical ceramics, covering a wide range of customer requirements .We make use of several forming and machining techniques to process components made from alumina Ceramics, This material may be used in applications that require High elevated temperatures ,High dielectric strength, excellent electrical resistance . wear or corrosion resistance .high temperature capability .High Electrical insulation.

Ceramic plate refers to a special process board in which copper foil is directly bonded to the surface of alumina (Al2O3) or aluminum nitride (AlN) ceramic substrate (single or double) at high temperature. The made of ultra-thin composite substrate with excellent electrical insulation properties, high thermal conductivity, excellent solderability and high adhesion strength, and the same as the PCB can be etched a variety of graphics, with a large current carrying ability. Therefore, the ceramic substrate has become the basis of high-power power electronic circuit structure technology and interconnect technology.

 

Key properties
Hard, wear-resistant
Excellent dielectric properties from DC to GHz frequencies
Resists strong acid and alkali attack at elevated temperatures
Good thermal conductivity
Excellent size and shape capability
High strength and stiffness
 

 

3. Specification 

Performance project	Unit	Value	Performance project	Unit	Value
Alumina content	wt /%	≥96	Volume resistivity	Ω.cm 20℃	1012
Bulk density	g/cm3	≥3.7	Breakdown strength	KV / mm	≥15
Hardness (HRA)	HRA	≥ 82	Acid resistance	mg / m2	≤7
Flexural strength	MPa	≥ 320	Alkali resistance	mg / m2	≤0.2
Safety temperature	℃	-55~1480	Wear resistance	g / m2	≤0.2
Water absorption	%	<0.01	Compressive strength	MPa	≥ 2400
Coefficient of linear expansion	x10-6 / ℃	7.5 ~ 8.5	Bending strength	MPa	≥200
Dielectric constant	ξ, 20 ° C, -1 MHz	9	Modulus of elasticity	GPa	300
Dielectric loss	tanδx10-4, 1MHz	3	Thermal conductivity	W / m.k (20 ℃)	24 ~ 25

 

4.Application:

 High Power Power Semiconductor Modules; Semiconductor Coolers, Electronic Heaters; Power Control Circuits, Power Hybrid Circuits.
 Smart Power Components; High Frequency Switching Power Supply, Solid State Relays.
 Automotive, Aerospace and Military Electronics Components.
 Solar panel components; telecommunications switches, receiving systems; lasers and other industrial electronics.