Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor

Place of Origin Hunan,China
Brand Name Antaeus
Certification /
Model Number AD-A032
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
Chemical Ingredients Al2O3 Max. Use Temp. 1650℃
Bulk Density 3.6g/cm3-3.9g/cm3 Water Absorption 0%
ROHS Hardness ≥85 Flexural Strength 358(52) - 550 Mpa(psix10^3)
Compressive Strength 2068(300) - 2600(377) Mpa(psix10^3) Coefficient Of Thermal Expansion 7.6 - 8.2 / 1X10^-6/℃
Coefficient Of Thermal Conductivity 16-30.4 / W/m.K Thermal Shock Resistance 250℃
Dielectricity Constant 9-9.7 / 1MHz.25℃ Dielectric Strength 8.3(210) - 8.7(220) / Ac-kV/mm(ac V/mil)
Volume Resistivity >10^13 Ohm-cm
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Relay Insulator Alumina Ceramic Components

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Ivory Alumina Ceramic Components

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alumina ceramic insulator Al2O3

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Product Description

Alumina ceramic components / relay ceramic assemblies / ceramic - metal brazed contactor

 

1. Description:

Ceramic-to-metal bonding has been one of the biggest challenges for manufacturers over the years because of the inherent differences in the thermal expansion coefficients of the two types of materials. By far the most widely preferred and effective method for creating a leak-tight, robust joint between ceramic and metal is by brazing. This starts with the chemical bonding metallization of the ceramic to create a wettable surface on which braze alloy will flow between the two components during the brazing process.

 

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

17) A variety of specifications is available

18) Satisfy various technical requests

19) Lower medium spoilage

20) Stiffness texture

21) Widely apply for automotive ceramic sensor , ceramic heater ,electric heating

 

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

Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor 0

 

6. Application Fields:

New energy vehicles, charging piles, solar power generation, energy storage and power storage system, electric vehicle power system and so on.

Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor 1

 

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

Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor 2

 

8. Detection Devices:

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

Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor 3

9. Order Flow Steps as belows: Inquiry ---Quotation --- Place an order --- Production --- Delivery

Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor 4

 

 

10. Our advantages: Quality Assurance ; Price Competitive ; Factory Supply Directly ; Good Service

Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor 5

11Shipping and Package:

Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor 6

12. Our aimed market:

Relay Insulator Ivory Alumina Ceramic Components Al2O3 Ceramic To Metal Brazed Contactor 7

13Guiding questions for material selection:

In order to select the appropriate material for your application, there are several questions that you should consider.

1) Are the mechanical properties important?

2) Will the part be exposed to wear/friction/impacts?

3) How many pieces are you looking to have made in your first batch?

4) What type of atmosphere will the part be operating in; inert or oxidizing?

5) What is the maximum operating temperature of the component?

6) Will the component experience any thermal shock?

7) Is electrical insulation important?

8) Is thermal conductivity important?

9) How important are tolerances and surface finish?

 

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