Dongguan Ming Rui Ceramic Technology Co.,ltd
Dongguan Ming Rui Ceramic Technology Co., Ltd
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Ceramic Bushing Ceramic Electrical Insulator Alumina Ceramic Insulating Bushing
Material properties datasheet
| Al2O3 | ZrO2/Y2O3 | ZrO2/MgO | MgO | SiC | Si3N4 Reaction sintered | Si3N4 Hot pressed | |
| Physical properties | |||||||
| Density (g/cm3) | 3.9 | 5.9 | 5.75 | 3.58 | 3.2 | 3.27 | 3.29 |
| Molecular weight (g/mole) | 102 | - | - | 40.4 | 40.1 | 140 | 140 |
| Maximum service temperature air (°C) | 1700 - 1800 | 1500 | 1000 | 2200 | 1500 | 1200 - 1500 | 1100 - 1600 |
| Mechanical properties | |||||||
| Hardness (Mohs) | 9 | - | - | 5.5 | 9 | - | - |
| Modulus of elasticity (GPa) | 300 - 400 | 200 | 200 | 250 - 300 | 420 | 170 - 220 | 280 - 310 |
| Poisson's ratio | 0.25 | - | - | 0.18 | 0.14 | 0.25 - 0.26 | 0.27 |
| Fracture toughness (MPa.m1/2) | 2 - 3 | 7 - 13 | 6 - 10 | - | 2.5 - 3.5 | 3.5 - 5 | 6.1 |
| Electrical properties | |||||||
| Dielectric constant | 9 - 10 | - | - | 9 - 10 | - | 10 | 10 |
| Electrical resistivity at 20°C (Ohm. cm) | >10 14 | 10 13-10 14 | >10 10 | - | 10 2-10 6 | >10 7 | 10 12- 10 15 |
| Dielectric strength (kV/mm) | 10 - 20 | 9 | 2 - 10 | - | - | - | - |
| Thermal properties | |||||||
| Specific heat (J/K/kg) | 900 | 400 - 500 | 420 | 870 - 880 | 750 | 690 | 680 - 800 |
| Thermal conductivity (W/m/K) at 20°C | 26 - 35 | 2.2 - 3.2 | 1.5 - 2.5 | 40 - 50 | 63 - 155 | 9 - 30 | 15 - 43 |
| Coefficient of thermal expansion ( 10-6) from 20 to 1000°C | 8-9 | 10-11 | 5-16 | 10-13 | 4-5 | 3 | 3.3 |
| Melting point (°C) | 2050 | 2590 | - | 2800 | 2500 | 1900 | 1900 |
Products features
1) High hardness and High density
2) Low thermal conductivity
3) Chemical inertness
4) Good Wear resistance
5) High fracture toughness
6) Good insulation performance
7) High-temperature resistance
8) A variety of specifications is available.
9) Satisfy various technical requests
10) Lower medium spoilage
11) Good insulation performance and high-temperature resistance
12) Stiffness texture
13) Used in all-electric products and electric heating products
14) OEM and ODM are welcomed
Frequently asked questions
Q: Are you a trading company or manufacturer?
A: We are ISO9001:2015 certified manufacturer.
Q: How long is your delivery time?
A: Generally, 5-10 days for parts in stock, 15-20 days for customized parts, it is according to quantity.
Q: Do you provide samples? is it free or extra?
A: Free sample will be offered, charge the actual freight, or paid by the consignee.
Q: What are your terms of payment?
A: Payment methods are flexible.
If you have another question, pls feel free to contact us.
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 information (the price, delivery time, MOQ, etc)about the ceramic plates, please contact us or email:admin@cerampart.com
Machining process
Raw materials-Molding process - Sintering - Machining & Grinding - Quality Inspection
Contact Us
Mingrui Ceramic Tech Co., Ltd.
(86) 181 2297 4730