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AL2O3 98% Heating Element Ceramic Insulator Low Thermal Conductivity

  • AL2O3 98% Heating Element Ceramic Insulator Low Thermal Conductivity
Place of Origin Hunan,China
Brand Name Antaeus
Certification /
Model Number AD-R008
Minimum Order Quantity Negotiation
Price Negotiation
Packaging Details Inner vacuum packaging, outside carton.
Delivery Time 15-45 days
Payment Terms T/T or Negotiation
Supply Ability Full Supply

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Product Details
Product Name Alumina Ceramic Insulator Material 98% Aluminum Oxide
Density 3.9g/cm3-5.9g/cm3 Size L:0.5mm-300mm
Working Temperature 1750℃ Application Alumina Ceramic Insulator / Rod For Oxygen Sensor
Process Grinding / Glazing ID 0.5-80mm
OD 0.5-150mm
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AL2O3 heating element ceramic insulator

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98% Heating Element Ceramic Insulator

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AL2O3 ceramic insulator for heater
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Product Description

98% Alumina Ceramic Insulator / Ceramic Heating Component For Oxygen Sensor

 

1. Description:

Alumina Ceramics (Al₂O₃) Alumina or Aluminium Oxide, Al 2 O 3 is a major engineering material. It offers a combination of good mechanical properties and electrical properties leading to a wide range of applications. Alumina can be produced in a range of purities with additives designed to enhance properties.

 

2. Feature Advantages:

1) High hardness and high density

2) Low thermal conductivity

3) Chemical inertness

4) High Fracture toughness

5) Good insulation performance and high temperature resistance

6) A variety of specifications is available

 

3. Material Features / Properties:

Composite (wt %) 99% 99.5% 99.8%
Color   White or Ivory White or Ivory White or Ivory
Density g/cm 3 3.82 3.9 3.92
Hardness HRA 83 85 85
Flexural Strength Mpa (psi*10 3 ) 375 386 381

 

4. Technical Parameters:

Technical Parameters of Ceramics
Items Test Conditions Unit or Symbol 99% AL2O3 95% AL2O3 90% AL2O3 Zirconia Steatite Silicon Carbide
Volume Density -- g/cm3 ≥3.70 ≥3.62 ≥3.40 ≥5.90 ≥2.60 ≥3.08
Tightness -- Pa·m³/s ≤1.0×10-11 ≤1.0×10-11 ≤1.0×10-11 - - -
Liquid Permeability -- -- Pass Pass Pass   Pass -
Flexural Strength - MPa ≥300 ≥280 ≥230 ≥1100 ≥120 ≥400
Elastic Modulus - GPa - ≥280 ≥250 ≥220 - 400
Poisson Ratio - 　 - - 0.20～0.25 0.20～0.25 - - -
Thermal Shock Resistance 800℃( Room Temperature) Cycle: 10 times   Pass Pass Pass - - -
Coefficient of Linear Expansion 20℃～100℃ ×10-6 K-1 - - -   ≤8 -
20℃～500℃ ×10-6 K-1 6.5～7.5 6.5～7.5 6.5～7.5 6.5～11.2 - -
20℃～800℃ ×10-6 K-1 6.5～8.0 6.5～8.0 6.3～7.3   - 4
20℃～1200℃ ×10-6 K-1 - 7.0～8.5 - - - -
Coefficient of Thermal Conductivity 20℃ W/(m·k) - - - - - 90～110
1000℃
Dielectric Constant 1MHz 20℃ - 9.0～10.5 9.0～10 9.0～10 - ≤7.5 -
1MHz 50℃ - - 9.0～10 - - - -
10GHz 20℃ - 9.0～10.5 9.0～10 9.0～10 - - -
Volume Resistivity 100℃ Ω·cm ≥1.0×1013 ≥1.0×1013 ≥1.0×1013 - ≥1.0×1012 -
300℃ ≥1.0×1013 ≥1.0×1010 ≥1.0×1013 - - -
500℃ ≥1.0×109 ≥1.0×108 -- - - -
Disruptive Strength D.C kV/mm ≥17 ≥15 ≥15 - ≥20 -
Chemical Durability 1:9HCl mg/c㎡ ≤0.7 ≤7.0 - - - -
10%NaOH mg/c㎡ ≤0.1 ≤0.2 - -- - -
Grain Size - μm - 3~12 - - - -

 

5. Process Flows:

Formulating --- Granulating --- Forming --- Sintering --- Grinding --- Inspecting --- Packing

AL2O3 98% Heating Element Ceramic Insulator Low Thermal Conductivity 0

 

6. Application Fields:

New energy vehicles, automotive industry, motorcycles, recreational cars, industrial automation, commercial cars and so on.

 

AL2O3 98% Heating Element Ceramic Insulator Low Thermal Conductivity 1

 

7. Production Facilities:Prilling Tower , Forming Machine , High Temperature Sintering Kiln

AL2O3 98% Heating Element Ceramic Insulator Low Thermal Conductivity 2

 

8. Detection Devices:

Electric Performance Tester , Film Thickness Analyzer , Granulometer , Helium Mass Spectrometer Leak Detector , Universal Pull Force Meter

AL2O3 98% Heating Element Ceramic Insulator Low Thermal Conductivity 3

 

9. Notes:Above information only for reference and please contact with us for more details freely when you have any inquiry!

 

Tags:

95 Percent alumina based ceramics

0.5mm 95 Ceramic Electrical Insulators

300mm Electrical Insulation Rod