Boron nitride tube - refractory insulation for high-temperature vacuum furnace

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Boron nitride tube is a material with good high-temperature insulation performance, mainly used in high-temperature, high-pressure, and industrial applications requiring excellent electrical insulation performance. In high-temperature vacuum furnaces with carbon materials, as heating elements and carbon felt and graphite felt as insulation materials, the insulation performance between the heating electrode and the insulation structure is the key to whether the equipment can be used normally. At temperatures exceeding 1600℃, only boron nitride ceramics can be competent for a long time.

The main features and application areas of boron nitride ceramic tubes are as follows:

High-temperature stability

Boron nitride ceramics can maintain their structure and performance unchanged at extremely high temperatures (up to 900℃ in air and up to 2100℃ in inert gas) and are suitable for applications in high-temperature environments. Therefore, it is suitable for high-temperature components in the aerospace field, such as engine components and thermal protection systems, where the material needs to withstand extreme temperatures and mechanical stress. It can also be used in high-temperature industrial equipment, such as heat treatment furnaces, kilns, and reactors, and boron nitride tubeare used as structural and insulating components.

Excellent electrical insulation

Boron nitride provides excellent electrical insulation, with a room temperature resistivity of up to 10^16 Ω.cm, ensuring safety in electrical applications. Boron nitride sleeves are used to handle and position sensitive silicon wafers during semiconductor manufacturing, especially in heat treatment and wafer manufacturing, to provide necessary structural support and thermal management. They can also be used as insulators and thermal interface materials at high temperatures to protect sensitive electronic components from overheating.

Excellent thermal conductivity

With high thermal conductivity (50-70 W/(m·K)), it is suitable for use as part of a thermal management system to optimize the thermal performance of the device.

Low thermal expansion coefficient

The low thermal expansion coefficient (1-1.2 x 10^-6/K) maintains dimensional stability in thermal cycling applications and reduces thermal stress.

Chemical inertness

Highly resistant to most chemicals and corrosive environments, ensuring performance is not affected in harsh environments.

Self-lubricating properties

With a certain degree of lubricity, it is suitable for use in mechanical applications requiring a low coefficient of friction.

Machinability

Boron nitride ceramics have excellent machinability and can be processed into complex shapes with minimum tolerances according to customer requirements.

Edgetechprovides the Boron nitride ceramic tubes, which have become indispensable in semiconductor aerospace, and high-temperature industrial applications due to their high-temperature stability, excellent electrical insulation, and good thermal management capabilities. Its design and material machinability make it particularly important in modern technology applications requiring high reliability and precise control. It provides customers with key support and guarantees to help customers achieve improved production efficiency and optimized product performance.