High Desity 99.9% Alumina Ceramic Plate , Aluminum Oxide Ceramic Insulators
Aluminum oxide insulating washers have a dielectric strength of approximately 21.7 x 10³ volts/mm for 0.76mm material and 16.9 x 10³ volts/mm for 1.57mm material. The thermal conductivity of aluminum oxide is 15.06 W/mK @ 75°. Aluminum oxide has unique thermal conductivity qualities and features low loss factors at high frequencies. It has high compressive strengths, high volume resistivity, low thermal expansion and it resists radiation.
>> Mingrui Ceramics advantage:
We can afford the standard and pre-engineered tiles;
We can afford the fabricated and lined equipment (finished product) according to customer requirement.
We have professional technical team to afford the CAD design drawings and develop new products for the pre-engineered tiles.
We have professional installation team to afford install service.
Feature:
*Good thermal conductivity
*Good strength and hardness
*Good resistance to wear and corrosion
*Temperature resistance up to 1700°C
Technical Parameter:
| Item |
Unit Symbol |
95% Alumina Ceramics |
99% Alumina Ceramics |
99.7% Alumina Ceramics |
| Maximum Using Temperature |
℃ |
1600 |
1700 |
1700 |
| Water Absorption |
% |
0 |
0 |
0 |
| Hardness |
Gpa |
≥85 |
≥89 |
≥89 |
| Flexural Strength |
MPa (psi x 103) |
336 |
550 |
550 |
| Compressive Strength |
MPa (psi x 103) |
2000 |
2500 |
2500 |
| Fracture Toughness |
Mpa |
4~5 |
5.6 |
6 |
| Thermal Conductivity |
W/m °K |
18-25 |
30 |
30.4 |
| Thermal Shock Resistance |
°C |
220 |
180-220 |
180-220 |
| Dielectricity Constant |
|
9.4 |
9.8 |
9.8 |
| Dielectric Strength |
kV/mm |
16 |
22 |
22
|
Our alumina substrate has well-balanced properties of insulation, thermal conductivity and breaking strength. Moreover, one of the unique properties is its surface roughness. We can provide the ceramic substrate which is excellent in adhesion with a thin film and thick film metalization due to fine particles.
96% Alumina Ceramic is commonly used in the electronics industry like thick film circuits, large-scale integrated circuits, hybrid ICs, semiconductor packages, chip resistors, network resistors, focus potentiometers, etc., it is most frequently used ceramic substrates because of its excellent advantages:
✔High mechanical strength and hardness
✔Good electrical insulation
✔Low dielectric constant and dielectric loss
✔Similar thermal expansion with Si
✔High thermal conductivity
✔Excellent corrosion resistance
✔Non-toxic
✔Available for surface metalization
Extra machining service: laser scribing/laser hole drilling/surface polishing/surface metalization could be made on alumina ceramic substrates.
Alumina (Al2O3) has a wide application due to its versatility and low material cost. Alumina possesses a high melting point, strong hardness, and good chemical stability, making it a good material to withstand high temperature and chemical corrosion. Alumina Plates and Disks are available in different dimensions and thicknesses. Call for custom shapes and sizes.
Alumina ceramic plate Specifications
alumina ceramic plate/tile
Alumina plate purity alumina 99.7%
Very small and very large size
High temperature,good abrasaive
Properties of Alumina and Zirconia Ceramic :
| Properties |
Units |
95 Alumina |
99 Alumina |
ZrO2 |
| Density |
g / cm³ |
3.65 |
3.92 |
5.95-6.0g/cm³ |
| 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 HV |
MPa |
1400 |
1650 |
1300-1365 |
| Flexural Strength @ room temperature |
MPa |
280 |
310 |
950 |
| Flexural Strength @700°C |
MPa |
220 |
230 |
210 |
| Compressive Strength @ room temperature |
MPa |
2000 |
2200 |
2000 |
| Fracture Toughness |
MPa *m 1/2 |
3.8 |
4.2 |
10 |
| Heat conductivity @ room temperature |
W/ m*k |
18-25 |
26-30 |
2-2.2 |
| Electrical Resistivity @ room temperature |
Ω*mm2 /m |
>1015 |
>1016 |
>1015 |
| Max use temperature |
°C |
1500 |
1750 |
1050 |
| Resistance to acid alkaline |
/ |
high |
high |
high |
| Dielectric Constant |
/ |
9.5 |
9.8 |
26 |
| Dielectric Strength |
KV/mm |
16 |
22 |
/ |
| Thermol Shock Resistance |
△ T ( °C ) |
220 |
180-200 |
280-350 |
| Tensile Strength @ 25 °C |
MPa |
200 |
248 |
252 |
Company Introduction:
We ( Dongguan Mingrui Ceramic Technology Co., Ltd ) are a professional manufacturer specialized
in R&D, manufacturing and selling customized all kinds of high precision zirconia and alumina ceramic parts . Our main products include ceramic rod , ceramic tube, ceramic plunger, ceramic valve, ceramic plate, ceramic shaft and bearing , ceramic nozzle etc , which are mainly used in industrial fields of Machinery, Petrochemical oil and gas, Valves, Automotive, Food Processing, Fluid Handling, Process Control, Thermal Processing, Aerospace, Defense, Eletronic and Electrical, Textile, Mechanical, Engineering, Mineral Processing, etc.
We have a full service include mold design and development , ceramic forming , precision machining
and precision detection technology. We have achieved great successes in particular requirements
which is based on cooperating with Tsinghua University and getting rich experience by our professional technical engineer teams . Our factory have an unique technical called mirror polishing which improve
our products more smooth , bright than other competitors.
Delivery:
Custom OEM will be shipped within 15 days after determining the parameters
The samples will be shipped within 3 days
Quick Delivery Via Fedex,DHL,UPS,TNT Etc.
Support customer to designate shipping company
For more informations (the price,delivery time,moq etc)about the ceramic plates, please contact us or email:admin@cerampart.com
CEO: Admin deng
Dongguan Mingrui Ceramic Tech. Co. Ltd.
Add: No.21 Chuangxing Rd., 2nd Industrial Zone of Shangsha,
Chang'an town, Dongguan city, Guangdong, China 523867
Email: admin@cerampart.com
FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-20 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
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