95% - 99% Alumina Semiconductive Ceramic Plate / Substrate With
High Application Temperature
Product Description
Advantages:
1. Refractory.
2. Isostatic Pressed.
3. Long Service Life.
4. Superior Mechanical Strength.
5. High Corrosion and Wear Resistance.
6. Good Insulation Performance Precision.
7. High Temperature and Pressure Resistance.
8. High Purity Zirconia and Alumina Ceramic Material.
They are high corrosion and wear resistance and strong impact
resistance and delivers 10 times longer working life than metal
parts. They give a longer life to the sealed packing material.
Application:
Alumina ceramic is mainly used in large power equipment, IC MOS
tube, IGBT chip heat conducting insulation, high frequency power
supply, communication, mechanical equipment, strong current, high
voltage, high temperature and other thermal heat insulation parts
need products.
Physical properties: high thermal conductivity, high voltage
insulation resistance, high temperature resistant, abrasion
resistant, high strength.
Machining precision data: (reference data,the actual data is subject to the actual
conditions)
(1)Shaft parts: Radial dimensions can reach 0.0015 mm; roundness
0.001 mm, concentricity 0.0025 mm, roughness 0.01
(2)Hole type parts:Machining minimum aperture of 0.3 mm, depth can
reach 3 mm;The diameter of 1 mm can be radial 0.002 mm;Roughness
0.02-0.04;
(3)Plane processing:The tolerance can reach 0.002 mm, and the plane
is 0.0015mm.
(4)Ceramic thread processing:the internal thread M2 can be grinds,
thread precision GB-7h; The outer thread size is not limited, the
precision GB-6g;
Properties Sheet:
| Properties | Units | 95 Alumina | 99 Alumina | Zirconia |
| Density | ɡ / cm3 | 3.65 | 3.92 | 5.95 - 6.0 |
| Water Absorption | ％ | 0 | 0 | 0 |
| Coefficient of Thermal Expansion | 10-6 / K | 7.9 | 8.5 | 10.5 |
| Modulus of Elasticity Young’s Mod | Gpa | 280 | 340 | 210 |
| Poisson’s Ratio | / | 0.21 | 0.22 | 0.3 |
| HV Hardness | Mpa | 1400 | 1650 | 1300 - 1365 |
| Flexural Strength @ Room Temperature | Mpa | 280 | 310 | 950 |
| Flexural Strength @ 700℃ | Mpa | 220 | 230 | 210 |
| Compressive Strength@Room Temperature | Mpa | 2000 | 2200 | 2000 |
| Fracture Toughness | Mpa * m½ | 3.8 | 4.2 | 10 |
| Heat Conductivity @ Room Temperature | W / m * k | 18 - 25 | 26 - 30 | 2.0 - 2.2 |
| Electrical Resistivity @ Room Temperature | Ω*mm2 / m | ＞1015 | ＞1016 | ＞1015 |
| Max Application Temperature | ℃ | 1500 | 1750 | 1050 |
| Resistance to Acid Alkaline | / | High | High | High |
| Dielectric Constant | / | 9.5 | 9.8 | 26 |
| Dielectric Strength | KV / mm | 16 | 22 | / |
| Thermal Shock Resistance | Δ T ( ℃ ) | 220 | 180 - 200 | 282 - 350 |
| Tensile Strength @ 25℃ | Mpa | 200 | 248 | 252
|
Detailed Images
Related Products
Packaging and Shipping
Packed in PP bag or sponge tray, then put in standard export carton
packing, or OEM packing.
Shipped by Air ( DHL, TNT, UPS, Fedex, EMS ), or Sea
transportation.
Company information
Who Are We?
Mingrui is a professional factory with years OEM experience in manufacturing industrial ceramic
parts.
What Do We Do?
We produce (OEM ) strengthened structure zirconia and alumina ceramic rod, ring, tube, shaft, plate, sleeve,
bushing, washer, valve, plunger, pin, nozzle and ceramic arm, etc., they are applicable to instruments, medical instruments,
clocks and electronic products, mills, energy and power, machine
and metals, autocar and military, spaceflight and some other
high-end fields.
All of our products with certificates, such as , CE, TUV, etc..
Factory Show
Production Process Show
One-stop production, from the raw material to final product.
