
Custom High Thermal Conductivity Industrial Silicon Nitride Ceramic Si3n4 Tray
Silicon nitride ceramic protection tube is used in conjunction with the thermocouple to protect the thermocouple, so that the thermocouple can work normally in a special environment, and it can resist high pressure and high flow rate.
We have an in-depth understanding of the needs and expectations of our customers, so that our Silicon Nitride Tubes, Ceramic Fiber Board, Alumina Ceramic Boat can be widely loved by customers. We have long-term cooperation with universities and have strong research and development capabilities, and our main products have independent intellectual property rights. With good corporate reputation, unique management style and strong market development capabilities, we have achieved remarkable results one after another.
Product Description
Si3N4 Ceramics is a new type of non-metallic ceramic material. One of the popular product of Si3N4 ceramics is Si3N4 tube. The tubes are mainly used in conjunction with thermocouples to protect them. It allows the thermocouple to operate properly in special environments and to resist high pressures and high flow rates.
Process Method
It uses silicon powder as raw material and is first made into the desired shape using the usual molding method. Initial nitriding is done in nitrogen at 1200°C, so that part of the silicon powder reacts with nitrogen to form silicon nitride. This way the whole body already has some strength. It is then nitrided a second time in a high-temperature furnace at 1350°C to 1450°C to react with the silicon nitride.
Specifications
Thermocouple protection tube: diameter Φ12-80mm, length 600-1800m

Data Sheet
Items | Data |
Sintering method | gas pressure sinter |
Density | >3.2g/cm3 |
Si3N4 content | >92% |
Flexural strength | >750Mpa |
Compressive strength | >1500Mpa |
Thermal conductivity (W/mk) | >22 |
Porosity | 0 |
Thermal expansion coeff. (RT-1000℃) | 3.2 |
Max temperature in air | 1400℃ |
Hardness (HRA) | >92 |
Q&A
1. How long is the service time of Si3N4 ceramics?
It will be different as per your application. The general period is 25-30days.
2. What is the payment terms?
Our payment terms are T/T, L/C or as per your request.
We pursue perfection and excellence, and win recognition and respect with high quality Custom High Thermal Conductivity Industrial Silicon Nitride Ceramic Si3n4 Tray and services. We insist on people-oriented, continuous development based on customer needs, and aspire to become a leader in the industry. We have a perfect quality control system to ensure the quality and delivery of products, from the customer to provide drawings to product delivery one-stop service, to truly save heart, trouble, time and cost.
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