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

Brand Name:Antaeus
Certification:/
Model Number:AD-M020
Minimum Order Quantity:Negotiation
Delivery Time:15-45 days
Payment Terms:T/T or Negotiation
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Location: Loudi Hunan China
Address: Antaeus Industrial Park, Chuangye 1 Road, Loudi Economy and Technological Development Zone, Hunan, China
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Product Details

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%
ColorWhite or IvoryWhite or IvoryWhite or Ivory
Densityg/cm 33.823.93.92
HardnessHRA838585
Flexural StrengthMpa (psi*10 3 )375386381

4. Technical Parameters:

Technical Parameters of Ceramics
ItemsTest ConditionsUnit or Symbol99% AL2O395% AL2O390% AL2O3ZirconiaSteatiteSilicon 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----PassPassPassPass-
Flexural Strength-MPa≥300≥280≥230≥1100≥120≥400
Elastic Modulus-GPa-≥280≥250≥220-400
Poisson Ratio-  --0.20~0.250.20~0.25---
Thermal Shock Resistance800℃( Room Temperature) Cycle: 10 timesPassPassPass---
Coefficient of Linear Expansion20℃~100℃×10-6 K-1---≤8-
20℃~500℃×10-6 K-16.5~7.56.5~7.56.5~7.56.5~11.2--
20℃~800℃×10-6 K-16.5~8.06.5~8.06.3~7.3-4
20℃~1200℃×10-6 K-1-7.0~8.5----
Coefficient of Thermal Conductivity20℃W/(m·k)-----90~110
1000℃
Dielectric Constant1MHz 20℃-9.0~10.59.0~109.0~10-≤7.5-
1MHz 50℃--9.0~10----
10GHz 20℃-9.0~10.59.0~109.0~10---
Volume Resistivity100℃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 StrengthD.CkV/mm≥17≥15≥15-≥20-
Chemical Durability1:9HClmg/c㎡≤0.7≤7.0----
10%NaOHmg/c㎡≤0.1≤0.2-----
Grain Size-μm-3~12----

5. Process Flows:

Formulating --- Granulating --- Forming --- Sintering --- Grinding --- Printing --- Nickel Plating --- Inspecting --- Packing


6. Application Fields:

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


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


8. Detection Devices:

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


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


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

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

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