Alumina Ceramic Insulator

Category

Alumina Ceramic Insulator is made of a ceramic material with Al2O3 as the main crystal phase. With the performance of abrasion resistance, corrosion, and heat resistance, excellent vacuum sealing and heat dissipation enable alumina ceramic insulators are widely used in the auto and vessel, and aircraft industry.

Additional information

Material

Alumina 99.5%, Alumina 99.8%, Alumina 99%

Tolerances

Up to +/-0.001mm

Forming

Dry-pressing, Isostatic-presssing

Processing

CNC machining with fine grinding

Customization

Send us your drawing to get our best offers

Product Details:

Alumina Ceramic Insulator is made of a ceramic material with Al2O3 as the main crystal phase. SENCER PRECISION CERAMICS can produce ceramic Insulators with an alumina content of 99% to 99.8%. The alumina has a compact structure, low activity, and high-temperature stability. The electrical properties are the best, with good mechanical properties, with a Mohs hardness of 9. With the performance of abrasion resistance, corrosion, and heat resistance, excellent vacuum sealing and heat dissipation enable alumina ceramic insulators are widely used in the auto and vessel, and aircraft industry.

Material Properties:

Composite (wt %) 99% 99.5% 99.8%
Color   White or Ivory White or Ivory White or Ivory
Density g/cm3 3.82 3.9 3.92
Hardness HRA 83 85 85
Flexural Strength Mpa(psi*103 ) 375 386 381
Gas Permeability   0 0 0
Water Absorption % 0 0 0
Thermal Shock Resistance °C 195 198 198
Thermal Expansion ×10-6/℃ 8.2 8.2 8.2
Dielectric Constant,20°C 1MHz 9.6 9.6 9.7
Dielectric loss, tanδ 1MHz 2×1014 1×1014 1×1014
Volume Resistivity,20℃ Ω·cm ≥1014 ≥1014 ≥1014
Dielectric Strength,DC Ω·cm 20 20 20
Compressive Strength KV/mm 2510 2700 2600
Fracture Toughness MPa( psi * 103) 350 350 350
Poisson’s Ratio MPa 0.22 0.22 0.22
Thermal conductivity W/mK 25.8 27 27

Type:

Alumina Ceramic Insulator

Material:

Alumina 99%

Available Color:
White or Ivory

Feature:

High-Heat Resistance, Excellent Insulation Performance. High Corrosion-Resistance, High Wear-Resistance, High Pressure Pressed

Size:

Size Customized, according to customer’s drawing, OEM.

Application:

Industrial ceramic, Technical ceramic.Advanced ceramic.Fine ceramic.

Advantage:

Package:
Carton+Palletize,Carton,bubble paper inside,Wooden Box.Pls let us know if you have any special requirements.

Producing Methods:

Dry pressing with Fine Lapping. Isostatic pressing.Metallization.

Tolerance:
Up to ±0.002mm, as customer’s drawing or OEM.

Surface:

Ultrasonic cleaning and dust-free packaging or according to customer’s requirements.

Packaging and Delivery

      Packaging:

  • Standard: Paper wooden boxes.
  • Special: Pls let us know if you have any special requirements.

      Lead time:

  • For sample orders: We usually can finish them in 20 days.
  • Mass Production: The best lead time for mass-production could be in 30 days.

 

    Transportation options:

  • By Air Express (Door to door)

The time limit is very fast (usually will arrive in 5-7 days )and you do not need to pick up the goods by yourself.

           Freight charge: higher.

  • By Air Transportation

The time limit is very fast (usually will arrive in 7-12 days) and you need to pick up the goods from the airport by yourself.

           Freight charge: cheaper than air express.

  • By Sea

The time limit is slow and you need to pick up the goods from the destination port by yourself.

            Freight charge: cheapest.

dhl, delivery, cars

Inspection Equipments

Design Guidelines

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@senceramics.com”

small_c_popup.png

Share with us your Ideas