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3.7-5.9g/Cm3 Alumina Ceramic Thermal Insulator For Microwave Magnetron

  • 3.7-5.9g/Cm3 Alumina Ceramic Thermal Insulator For Microwave Magnetron
Place of Origin Hunan,China
Brand Name Antaeus
Certification /
Model Number AD-M020
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 Microwave Magnetron Ceramic Material Alumina (Aluminum Oxide, Al2O3)
Density 3.7g/cm3-5.9g/cm3 Power Range ≤7W /cm2
Working Temperature -40℃-125℃ Pressure ≦ 10-3Pa
Working Voltage 3v~480v Thermal Shock Test 1.(Temperature)：-55℃/125℃ 2,(Time)2.2min 3 (Switching Time ) Max 10s 4 (Frequency)：15 Times
Working Life >5000 H
Highlight

5.9g/Cm3 ceramic thermal insulator

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Microwave Magnetron ceramic thermal insulator

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3.7g/Cm3 alumina ceramic insulator
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Product Description

Home Electrical Microwave Magnetron Ceramic / Special Ceramic Parts

1. Description:

A magnetron has quite a lot in common with a cathode-ray (electron) tube, the sealed glass bulb that makes the picture in an old-style television set. The tube is the heart of a TV: it makes the picture you can see by firing beams of electrons at a screen covered in chemicals called phosphors so they glow and give off dots of light. You can read all about that in our main article on television, but here (briefly) is what's happening. Inside the TV, there's a negatively charged electrical terminal called a cathode that's heated to a high temperature so electrons "boil" off it. They accelerate down the glass tube, attracted by a positively charged terminal or anode and reach such high speeds that they race past and crash into the phosphor screen at the tube's end.

 

2. Feature Advantages:

1) High elasticity modulus

2) High compressive strength.

3) Anti corrosion

4) Abrasion resistance

5) Impact resistance

6) High precision

7) High stability

8) Good advanced ceramic materials

9) High welding sealing performance

10) High hardness and high density

11) Low thermal conductivity

12) Chemical inertness

13) Good wear resistance

14) High Fracture toughness

15) Good insulation performance

16) High temperature resistance

 

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 --- Printing --- Nickel Plating --- Inspecting --- Packing

3.7-5.9g/Cm3 Alumina Ceramic Thermal Insulator For Microwave Magnetron 0

 

6. Application Fields:

Microwave Magnetron Ceramic for Home Electrical Appliances , Aerospace and Other Industry!

3.7-5.9g/Cm3 Alumina Ceramic Thermal Insulator For Microwave Magnetron 1

 

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

3.7-5.9g/Cm3 Alumina Ceramic Thermal Insulator For Microwave Magnetron 2

 

8. Detection Devices:

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

3.7-5.9g/Cm3 Alumina Ceramic Thermal Insulator For Microwave Magnetron 3

 

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

 

 

 

Tags:

Magnetron 95 Alumina Ceramic

Magnetron machining ceramic parts

Anti corrosion High Purity Ceramics