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High Voltaged Insulated Alumina Ceramics
High Voltaged Insulated Alumina Ceramics

Name:Insulated Alumina Ceramics Structure:Polycrystal Size:Customized Alumina content:95% or 99% Certificate:ISO9001-2008

Specifications:  

  1.Wear-resistant

  2.Desirable surface fineness

  3.OEM/OPM Offered

  4.Factory Directly

Productive Technology:

    Wearable ceramic is the special corundum ceramic that has been sintered under 1800°C with the 

main raw material of Al2O3 and flux of rare metal oxide.Using the high strength organic/inorganic bond 

to felt together, and then grinding to the size as drawing required.

 Advantages:

   1.High temperature

   2.Good insulation

   3.High strength

   4.Precision Process

 

Alumina Ceramics Properties

 

Unit

95%

99%

Density

g/cm3

3.6

3.8

Water absorption

%

<0.4

<0.2

Firing temperature

°C

1600

1800

Hardness

HRA

70

80

Coefficientoflinearexpansion

*10-6/°C

5.5

5.3

Dielectric constant

 

9

10.5

Volume resistivity

Ω·cm

1013

Breakdownvoltage

KV/mm

14

15

Breaking strength

Mpa

250

300

 

 

 

 

 

 

 

 

High Voltaged Insulated Alumina Ceramics

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