High Working Temperature 99.7% Alumina Ceramic Plate
Description:
Ceramic plate are used in many electronic applications where a thin
insulating layer of thermally stable material is required to
conduct heat away from electronic components whilst electrically
insulating them, and material is 95%, 96%, 99% alumina and
zirconia.
Properties with excellent insulation, high mechanical strength,
high thermal conductivity, low expansion coefficient, small
dielectric constant, high-temperature resistance, excellent erosion
and wear resistance, good quality in chemical shock heat and cold.
Technical Parameters:
| Test item/Unit | Numerical Value | Test item/Unit | Numerical |
| Product Material | Alumina | Zirconia | Product Material | Alumina | Zirconia |
| Component Content % | ≥99% | ≥95% | ≥90% | Volume Resistance MM | >1012 | >1012 | >1012 |
|
| Sintering Temp ℃ | 1780-1800 | 1650-1680 | 1550-2600 | Bending Strength Mpa | 400 | 320 | 1100 |
|
| Specific Gravity g/cm3 | ≥3.8 | ≥3.6 | >6 | Thermal Expansion Coefficient'10' | 6.8-8.0 | 6.2-8.5 | 6.9-10 |
|
Breakdown Voltage
Strength kv/mm | 15 | 15 | 15 | Roughness um | ≤0.8 | ≤0.8 | ≤0.8 |
|
| Bibulous Rate% | <0.01 | <0.01 | <0.01 | Mirror Polished Ra | ≤0.05 | ≤0.1 | ≤0.05 |
| Anti Pressure Mpa | 3700Mpa | 2400Mpa | 5000Mpa | Thermal Conductivity W/m.k | 25 | 20 | 25 |
|
| Hardness Hra | ≥88 | ≥82 | ≥88 | Temperature Resistance ℃ | 1700 | 1600 | 1800 |
Advantages:
1.High hardness.
2.Superior abrasion and impact resistance.
3.Corrosion and chemical resistance.
4. Light weight:Its density is 3.5g/cm3, only half that of steel,
which can greatly reduce equipment load.
Application:
1. Ceramics, mines and other grinding equipment lining.
2· Material thansfer equipment.
3· Inside and outside surface of powder separating equipment on
iron and steel works.
4· Thermal and power plants.
