Small Ceramic Balls

Small Ceramic Balls

small ceramic balls 1. Large insulation resistance 2. Strong mechanical strength 3. Wear resistance 4. High temperature resistance 5. Corrosion resistance 6. Antioxidation 7. Environmental protection 8. Good thermal stability 10. Accurate technical size 11. Variety of specifications 12. Inherent...

Product Details

small ceramic balls

1. Large insulation resistance

2. Strong mechanical strength

3. Wear resistance

4. High temperature resistance

5. Corrosion resistance

6. Antioxidation

7. Environmental protection

8. Good thermal stability

10. Accurate technical size 

11. Variety of specifications 

12. Inherent properties of alumina ceramics


Test items

Test Conditions

Test Results

National Standards

Bulk density (g/cm3)


3.65

>3.6

Flexural strength(kgf/cm²)


2920

≥2800

Linear expansion coefficient(×10-6mm/°C)

20-500 °C

6.75

6.5-7.5

Dielectric loss tangent(×10-4)

10GHZ20 °C

9.75

≤10

Permittivity

10GHZ20 °C

9.4

9-10

Volume resistivity(Ωcm)

100 °C

>1013

>1013

300 °C

>1010

>1010


Breakdown strength(kv/mm)


15.9

≥15

Porosity(%)


0

0

Chemical stability (mg/cm²)

1:9HCl

6.8

≤7.5

10%NaOH

0.15

≤0.2



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