In today's era of rapid technological development, various high-performance materials continue to emerge. Among them, Aluminum Nitride ceramic rings have become the focus of many industries with their excellent performance and broad application prospects.
Material properties
Aluminum Nitride, the core material of Aluminum Nitride ceramic ring, is a compound with unique physical and chemical properties. It is covalently bonded to form a wurtzite structure with 〔AIN4〕tetrahedron as the structural unit, belonging to the hexagonal crystal system15. From the perspective of chemical composition, the aluminum content is about 65.81%, the nitrogen content is about 34.19%, the specific gravity is about 3.261g/cm³, and it is usually white or off-white. In the single crystal state, it is colorless and transparent. Its sublimation decomposition temperature under normal pressure is as high as 2450℃, showing excellent high-temperature stability.
Performance Advantages
- Good chemical stability: Aluminum Nitride rings have high mechanical strength and hardness, and can be used as corrosion-resistant containers, pipeline linings, and high-temperature protection materials, etc.
- High electrical insulation: The resistivity of AIN ceramic ring is greater than 10¹³Ω・cm, which can effectively isolate the current and is an ideal electrical insulation material.
- Excellent mechanical properties: AlN rings have high mechanical strength and hardness, and their bending strength can be as high as 400MPa or more, and can be used to manufacture some parts with high mechanical strength requirements.
- High thermal conductivity: The theoretical value of thermal conductivity of Aluminum Nitride ceramics can reach about 320W/m・K, and the thermal conductivity of polycrystalline Aluminum Nitride actually prepared in industry can also reach 100-250W/m・K. The thermal conductivity of Aluminum Nitride ceramic rings is 5-10 times that of traditional substrate materials such as aluminum oxide, and they perform well in applications with high heat dissipation requirements.
- Good matching of thermal expansion coefficient: The thermal expansion coefficient of Aluminum Nitride ring matches that of semiconductor materials such as silicon. In the packaging of semiconductor devices, it can improve the reliability and stability of the device.
- Low dielectric constant and dielectric loss: AlN ceramic rings have the characteristics of low dielectric constant and dielectric loss, which is of great significance to the development of high-frequency communication technologies such as 5G communication and radar.
Industry Information
In recent years, with the rapid development of high-tech industries such as electronic information and new energy, the demand for high-performance materials has been growing. As a key basic material, the market size of AlN rings continues to expand. According to relevant industry reports, the global Aluminum Nitride ceramics market has maintained a high growth rate in the past few years and is expected to continue to grow in the future. And with the widespread promotion of 5G communication technology, the vigorous development of artificial intelligence and the rapid rise of the Internet of Things, electronic devices have been given more stringent standards in terms of performance. As a high-performance heat dissipation, insulation and packaging material, the demand for Aluminum Nitride ceramic rings in the market is showing a sharp upward trend.
Contact Information
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