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, ODM, and OBM are welcomed
Frequently asked questions
Q: Are you a trading company or manufacturer?
A: We are a factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is
15-20 days if the goods are not in stock, it is according to
quantity.
Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay
the cost of freight.
Q: What are your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below:
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
admin@cerampart.com
cerampart.com
mrceramicpart.com
