Precise zirconia ceramic structural components 99% alumina ceramic tube



Precise zirconia ceramic structural components 99% alumina ceramic tube

 Alumina ceramic is a kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products.

 

Feature: 

  1. A variety of specifications available

  2. Satisfy various technical request 

  3. Lower medium spoilage

  4. Good insulation performance and high temperature resistance

  5. Stiffness texture

  6. Used in all electric products, electric heating products and wear resistant machinery parts

 

Alumina Ceramic Performance

Item
Unit95 Al2O396 Al2O399 Al2O3
Physical CharacteristicsHeat resistance℃150015501800
Bulk dnsityg/cm³3.6 3.63.9
Water absorption%000
Mechanical CharacteristicsFlexural strengthMpa320340360
Hardness vickersGpa12.213.515.6
Elastic mdulusGpa280320370
Poisson'radio
0.220.230.23
Thermal CharacteristicsLinear expansion coeffcient(20-500℃)10^-6/℃7.17.28
Thermal conductivityw/(m.k)162432
Specific heat*10^-3(kg*K)0.780.780.9
Electrical CharacteristicDielectric constant(1MHZ)-99.49.9

Dielectric loss angle*10^-41551

Dielectric strength*10^6V/m121515


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