Aluminum Nitride Ball

Aluminum Nitride Ball is a premium high-performance ceramic component, featuring superior thermal conductivity, outstanding electrical insulation, excellent high-temperature resistance and low thermal expansion coefficient. It serves as a critical part for advanced electronic packaging, semiconductor fabrication and precision thermal management systems. NexusX Advanced Materials, as a premier manufacturer and supplier of high-quality aluminum nitride products, focuses on producing high-precision aluminum nitride balls through advanced technologies for diverse application fields.

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Aluminum Nitride Ball Data Sheet

Purity:	95%-99%
Density:	3.32 g/cm³
Appearance:	Dark Gray / Light Gray / Beige

Aluminum Nitride Ball Description

Aluminum Nitride (AlN) Balls are advanced high-performance ceramic components celebrated for their outstanding comprehensive properties. Boasting ultra-high thermal conductivity, excellent electrical insulation, remarkable high-temperature resistance, low thermal expansion coefficient and strong chemical stability, these balls are tailored for rigorous industrial scenarios. Widely adopted in electronic packaging, semiconductor fabrication, thermal management systems of high-power devices and precision instrument parts, they effectively enhance equipment operational stability, reduce heat accumulation and extend service life, perfectly satisfying the stringent requirements of high-end manufacturing and electronic industries.

Aluminum Nitride Ball Advantages

High thermal conductivity (170-230 W/mK), up to 9.5 times that of alumina.
A thermal expansion coefficient similar to that of silicon (Si).
Superior electrical insulation and lower dielectric constant.
Higher mechanical strength (450 MPa).
Excellent resistance to molten metal corrosion.
High purity and non-toxic.

Aluminum Nitride Ball Applications

Recision grinding/dispersion media: Used in ball mills and other equipment for high-purity grinding of electronic pastes, new energy materials, fine chemicals/pharmaceuticals and optical materials. It features zero pollution, low wear rate and high chemical stability.
High-precision bearing rolling elements: Manufactured into special bearings for high-temperature, high-speed and high-precision conditions, and applied in semiconductor equipment, aerospace, precision instruments and medical devices. It boasts excellent thermal conductivity, self-lubrication, insulation and resistance to extreme environments.
Semiconductor manufacturing components: Served as support/positioning balls for plasma equipment, rolling balls for wafer carrying systems and positioning balls for packaging and testing. It matches the thermal expansion coefficient of silicon wafers and is corrosion-resistant to plasma.
High-performance valve and pump components: Used as valve balls and pump parts under high-temperature, high-pressure and corrosive working conditions, and suitable for harsh processes such as chemical engineering.

Aluminum Nitride Ceramic Packaging

Aluminum Nitride Ceramic products are typically packaged in vacuum-sealed bags to prevent moisture or contamination and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.

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FAQ

What are the core physical characteristics of an Aluminum Nitride Ball?

An Aluminum Nitride Ball has three key physical characteristics: ultra-high thermal conductivity (170–230 W/(m·K), far higher than alumina ceramic balls), excellent electrical insulation (volume resistivity > 10¹⁴ Ω·cm for stable operation in strong electric fields), and low thermal expansion coefficient, which matches well with silicon and gallium arsenide to avoid stress cracking.

In which industrial fields is an Aluminum Nitride Ball mainly applied?

With its dual thermal conductivity and insulation advantages, an Aluminum Nitride Ball is mainly used in high-power electronic packaging, semiconductor manufacturing equipment (high-precision bearings, wafer transfer parts), aerospace high-temperature components and new energy battery thermal management systems.

What are the key process steps for preparing an Aluminum Nitride Ball?

The key preparation steps are: 1. Raw material purification (raise aluminum nitride powder purity to ≥99.9% and remove impurities); 2. Molding (form spherical blanks by dry pressing or isostatic pressing); 3. Sintering (sinter at 1800–2000℃ in nitrogen atmosphere); 4. Precision grinding and polishing (meet industrial sphericity and roughness standards).

What are the prominent advantages of an Aluminum Nitride Ball compared with traditional alumina ceramic balls?

An Aluminum Nitride Ball outperforms traditional alumina ceramic balls in two aspects: it has 10–15 times higher thermal conductivity for better heat dissipation, and its thermal expansion coefficient is closer to silicon-based semiconductors, which reduces interface stress and extends device service life (alumina balls tend to cause device cracking due to higher thermal expansion).

How is the corrosion resistance of an Aluminum Nitride Ball in acid and alkali environments?

An Aluminum Nitride Ball has good alkali resistance (stable in weak to medium-strong alkali), but poor acid resistance. It reacts with strong acids (e.g., hydrochloric acid, sulfuric acid) to form aluminum hydroxide and ammonia, which damages the ball structure. Avoid using it in strong acid conditions.

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