Ceramic Thermocouple Protection Tube/Pipe Of Si3N4 Silicon Nitride Material
Silicon Nitride Material Analysis thermocouple | ||||||
Item | Unit | Material and Modle NO. | ||||
Silicon Nitride WNH-200 | Silicon Nitride WNH-500 | |||||
Bulk density | g/cm3 | 3.2 | 3.2 | |||
Water absorption | % | 0 | 0 | |||
Bending strength | Mpa | 750 | 800 | |||
Young modulus | Gpa | 280 | 290 | |||
Fracture toughness | Mpa ∙ m1/2 | 6.5 | 7 | |||
Poisson's ratio | - | 0.28 | 0.28 | |||
Vickers hardness | Gpa | 15 | 15 | |||
Coefficient of linear expansion | ×10-6/℃ | 3.4 | 3.5 | |||
Thermal conductivity | W/(m ∙ k) | 26 | 50 | |||
Specific heat | J/(g ∙ k) | 0.65 | 0.61 | |||
Volume resistivity | Ω ∙ cm | > 1014 | > 1014 | |||
Heat shock resistance | ℃ | 800 | 900 | |||
Maximum operation temperature | ℃ | 1150 | 1150 | |||
high purity 99% al203 alumina/zirconia ceramic tubes/crucibles/ boats
Ceramic materials for ceramic components generally have high melting point (mostly above 2000℃) and excellent chemical stability
and best insulation at high temperature.Ceramic thermal conductivity for ceramic parts is lower than metal materials, and a good
thermal insulation material.At the same time, the linear expansion coefficient of ceramics is lower than that of metals. When the
temperature changes, ceramics component parts have good dimensional stability.
Features of ceramic:
1. Refractory, High Temperature Resistance, Maximum Used Temperature: 1800 ºC (3272ºF)...
2. Hardness Strength Up To Mohs 9.0; HRA 80-90, Wear Resistance wear rate 0.68 mm3·m-2·h-1
3. High Voltage, Good Insulation Performance ,Electrical Resistivity Up To 10∧14 Ohm.Cm...
4. High Polished Surface Up To Rz0.8(Ra0.1) ...
5. Superior Mechanical Strength, Max 10 MPa.m1/2 Fracture toughness,
6. Pressure Resistance, Max 2300MPa compressive strength...
7. Anti-High Corrosion Resistance, Such As Acid Alkali Resistance...
8. Long Service Life...
9. Other excellent property
Q: Are you trading company or manufacturer ?
A: We are factory. We had been engaged industrial ceramics for more than 20 years.The quality and service of the products are
guaranteed.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 20-40 days if the goods are not in stock, it is according to the
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 is your terms of payment ?
A: 100%T/T before shipping, when the value of the goods is less than $10,000. If over, can be discussed. Accept the payment by Alibaba insurance order.
Q: Why choose us?
Pre-sale service: Professional technical persons will choose suitable materials for you due to using environment about the ceramic parts.
The sale of services: If you need,we can provide the sample for you to go on testing,and also provide technical help and supports for you.
After-sales service: Accept any repair of the product, help to improve technology for customer. And also provide long-term
technical help and support for you.
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