aluminium nitride price

When sourcing Aluminium Nitride, the price is primarily driven by purity levels (typically 99% to 99.9%) and particle size distribution (D50). For high-end electronic applications, you must ensure the oxygen content is extremely low (<1.0%), as oxygen significantly reduces thermal conductivity. Additionally, verify the thermal conductivity rating, which should ideally range between 170-230 W/m·K for premium substrates or powders.

The price structure varies significantly between forms. AlN Powder is priced by weight (kg) and is sensitive to spherical morphology and surface treatment (like water-resistant coatings). AlN Ceramic Substrates are priced by dimensions and surface finish; laser-cut or polished surfaces command a premium. For B2B buyers, specifying the metallization requirements (e.g., Thin-film or Thick-film) is essential as it can double the base material cost.

Suppliers must provide RoHS and REACH certification to ensure the material is free from restricted hazardous substances, especially for the electronics industry. For industrial-grade applications, look for ISO 9001:2015 certified manufacturers. It is critical to request a Certificate of Analysis (COA) for every batch and, if possible, a SEM (Scanning Electron Microscope) image to verify particle uniformity and quality.

Aluminium Nitride is a high-performance material used where high thermal conductivity and electrical insulation are required simultaneously. Key scenarios include LED heat sinks, power transistors (IGBTs), 5G communication base stations, and semiconductor processing equipment. If your application does not require extreme heat dissipation, Alumina (Al2O3) may be a more economically feasible alternative.

Aluminium Nitride powder is hydrophilic and reacts with moisture to form ammonia and aluminum hydroxide, degrading its properties. Ensure the supplier uses vacuum-sealed aluminum foil packaging with desiccant packs. For sea freight, specify wooden crate reinforcement to prevent puncture of the vacuum seals, and consider air freight for high-purity samples to minimize environmental exposure.

Focus on volume-based tiered pricing; AlN production is energy-intensive, so suppliers offer significant discounts for bulk orders exceeding 50-100kg. Request a breakdown of the raw material cost vs. processing fees. To ensure transaction security, utilize secured payment terms and consider hiring a third-party inspection service to verify the thermal conductivity specs before final balance payment.

Aluminium Nitride is sometimes scrutinized under dual-use technology regulations due to its applications in high-power electronics. Always confirm the HS Code (typically 2850.00) with your customs broker. Ensure the SDS (Safety Data Sheet) is provided in the language of the destination country to avoid delays. For shipping to the US or EU, verify if any anti-dumping duties apply to specific ceramic technical grades from the origin region.