AlN Powder:Overview of Aluminum Nitride Powder

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Aluminum Nitride (AlN) powder is a versatile material known for its exceptional thermal and electrical properties. Its applications span across electronics, metallurgy, and ceramics, making it a critical component in modern technology. This guide provides an in-depth overview of AlN powder, from its composition and characteristics to its various applications and advantages. We’ll also compare different models, explore the pros and cons, and answer frequently asked questions.

概要 窒化アルミニウムパウダー

Aluminum Nitride (AlN) is a ceramic material with unique properties that set it apart from other compounds. Known for its high thermal conductivity, excellent electrical insulation, and stability under extreme conditions, AlN powder is indispensable in industries such as semiconductors, aerospace, and energy.

Key Features of AlN Powder

  • High Thermal Conductivity: Efficient heat dissipation.
  • Electrical Insulation: Ideal for electronic devices.
  • Chemical Stability: Resistant to corrosion and oxidation.
  • Wide Bandgap: Suitable for high-power electronic applications.
プロパティ価値
熱伝導率170-200 W/mK
電気抵抗率>10ⁱ⁰ Ω·cm
融点2,200°C
密度3.26 g/cm³
Crystal StructureWurtzite
窒化アルミニウムパウダー
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Types and Models of AlN Powder

There are various models of AlN powder tailored for specific applications. Below is a list of popular models with descriptions:

  1. Grade A-100: High-purity powder with low oxygen content, ideal for high-performance electronic substrates.
  2. ThermaAlN-150: Designed for applications requiring superior thermal conductivity.
  3. NanoAlN-50: Nano-sized particles for advanced coatings and composites.
  4. EcoAlN-200: Environmentally friendly option with sustainable production methods.
  5. UltraFine-300: Ultra-fine powder for precision applications in semiconductors.
  6. AlN-XTreme: Enhanced toughness for structural ceramics.
  7. SuperPure-500: Ultra-high purity for research and specialized uses.
  8. IndustrialAlN-700: Cost-effective option for bulk applications in general industries.
  9. PowderFlex-400: Flexible grain sizes for diverse applications.
  10. HeatSinkAlN-800: Specifically engineered for heat sink and thermal management applications.
モデル名Key FeaturePrimary Application
Grade A-100High purity, low oxygenElectronic substrates
ThermaAlN-150Superior thermal conductivity放熱
NanoAlN-50Nano-sized particlesCoatings, composites
EcoAlN-200Sustainable production一般産業用
UltraFine-300Ultra-fine grainPrecision electronics
AlN-XTremeEnhanced toughnessStructural ceramics
SuperPure-500Ultra-high purityResearch, specialized electronics
IndustrialAlN-700費用対効果Bulk industrial applications
PowderFlex-400Versatile grain sizesDiverse applications
HeatSinkAlN-800Optimized for heat sinksThermal management

Composition of AlN Powder

Aluminum Nitride powder is primarily composed of aluminum (Al) and nitrogen (N). The composition often includes trace impurities such as oxygen or carbon, depending on the production process.

エレメントPercentage
アルミニウム(Al)50-55%
窒素(N)45-50%
酸素 (O)<0.5%
カーボン(C)<0.2%

Manufacturers achieve high purity through processes such as carbothermal reduction or direct nitridation.

Characteristics of AlN Powder

物理的性質

  • 密度が高い: 3.26 g/cm³
  • Color: Light gray or off-white
  • 粒子径: Ranges from nanometers to micrometers

熱特性

  • Thermal Expansion Coefficient: 4.3 × 10⁻⁶ /°C
  • Thermal Conductivity: 170-200 W/mK

Electrical Properties

  • Dielectric Constant: 8.6 at 1 MHz
  • Electrical Resistivity: >10ⁱ⁰ Ω·cm

化学的性質

  • Chemically inert under most conditions
  • Resistant to corrosion and oxidation
プロパティ説明
密度3.26 g/cm³
熱膨張Low, ideal for stable structures
Chemical StabilityHigh resistance to oxidation
電気抵抗率Excellent insulation properties

Applications of AlN Powder

Aluminum Nitride powder is widely used in various industries. Here are some of its prominent applications:

産業申し込み
エレクトロニクスSubstrates, heat sinks, thermal interface materials
セラミックスStructural components, high-temperature coatings
航空宇宙Thermal management systems
エネルギーLED technology, photovoltaic systems
冶金学Crucibles, metal refining aids
医療機器Bio-compatible ceramics

仕様、サイズ、等級、規格

AlN powder comes in various sizes and grades to suit different applications. Below is a detailed comparison:

仕様Range/Value
粒子サイズ0.1-10 micrometers
純度レベル95%-99.99%
熱伝導率170-200 W/mK
酸素含有量<0.5%
規格ASTM C1685, ISO 9001

サプライヤーと価格

AlN powder is available from various global suppliers. Pricing depends on purity, particle size, and order quantity.

サプライヤー製品価格(USD/kg)MOQ
MaterionGrade A-100$150-$2001 kg
Advanced CeramicsThermaAlN-150$180-$2505 kg
NanoMaterials Inc.NanoAlN-50$300-$4001 kg
GreenTech MaterialsEcoAlN-200$120-$17010キロ

Advantages and Limitations of AlN Powder

メリット

  • High thermal conductivity for efficient heat dissipation.
  • Excellent electrical insulation properties.
  • Chemically stable and resistant to oxidation.

制限事項

  • Relatively high production costs.
  • Brittle nature limits mechanical applications.
  • Susceptibility to hydrolysis under specific conditions.
アスペクトメリット制限事項
熱伝導率高いなし
Electrical PropertiesExcellent insulationNot conductive
コストHigh-end applications justify costExpensive for general use
窒化アルミニウムパウダー
AlN Powder:Overview of Aluminum Nitride Powder 20

よくある質問

質問回答
What is AlN powder used for?It’s used in electronics, ceramics, aerospace, energy, and medical industries.
Why is AlN powder expensive?The high cost is due to complex production processes and high purity levels.
How is AlN powder produced?It’s typically made through carbothermal reduction or direct nitridation.
Can AlN powder conduct electricity?No, it’s an excellent electrical insulator.
Is AlN environmentally friendly?Yes, especially eco-friendly grades like EcoAlN-200.

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