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Aluminium Nitride (AlN)
Aluminum Nitride/AlN
Aluminum nitride is a high thermal conductivity ceramic material with excellent insulation properties, high hardness and excellent thermal stability.
Physical properties
Specific gravity (S.G): 3.26 g/cm^3
Porosity: <0.5%
Vickers hardness (HV1 Hardness): 1200-1400 HV
Mechanical properties
Flexural Strength: 350-400 MPa
Compressive Strength: 3000 MPa
Young's Modulus: 320 GPa
Fracture Toughness: 3-4 MPa·m^1/2
Thermal properties
Coefficient of Thermal Expansion:
40~400°C: 4.6×10^-6/°C
40~800°C: 5.3×10^-6/°C
Thermal Conductivity: 180-200 W/m·K
Specific Heat: 780 J/kg·K
Electrical properties
Thermal shock/resistance Dielectric Strength: 14 kV/mm
Volume Resistivity:
20°C: >10^14Ω·cm
500°C: >10^10Ω·cm
Dielectric constant (Permittivity)@1MHz: 8.9 C^2/(N·m^2)
Dielectric Loss Angle@1MHz: <2×10^-4
Aluminum nitride is widely used in electronics, machinery, aerospace and other fields because of its excellent properties.
Physical properties
Specific gravity (S.G): 3.26 g/cm^3
Porosity: <0.5%
Vickers hardness (HV1 Hardness): 1200-1400 HV
Mechanical properties
Flexural Strength: 350-400 MPa
Compressive Strength: 3000 MPa
Young's Modulus: 320 GPa
Fracture Toughness: 3-4 MPa·m^1/2
Thermal properties
Coefficient of Thermal Expansion:
40~400°C: 4.6×10^-6/°C
40~800°C: 5.3×10^-6/°C
Thermal Conductivity: 180-200 W/m·K
Specific Heat: 780 J/kg·K
Electrical properties
Thermal shock/resistance Dielectric Strength: 14 kV/mm
Volume Resistivity:
20°C: >10^14Ω·cm
500°C: >10^10Ω·cm
Dielectric constant (Permittivity)@1MHz: 8.9 C^2/(N·m^2)
Dielectric Loss Angle@1MHz: <2×10^-4
Aluminum nitride is widely used in electronics, machinery, aerospace and other fields because of its excellent properties.