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Aluminum Nitride vs. Titanium Diboride

Both aluminum nitride and titanium diboride are non-oxide engineering ceramics. There are 16 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is aluminum nitride and the bottom bar is titanium diboride.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 2100
3540
Elastic (Young's, Tensile) Modulus, GPa 330
290
Flexural Strength, MPa 190 to 400
380
Fracture Toughness, MPa-m1/2 2.9
6.5
Knoop Hardness 1160
2800
Poisson's Ratio 0.21 to 0.31
0.11

Thermal Properties

Maximum Temperature: Mechanical, °C 1380
1270
Maximum Thermal Shock, °C 220
110
Specific Heat Capacity, J/kg-K 780
870
Thermal Conductivity, W/m-K 80 to 190
58
Thermal Expansion, µm/m-K 4.2 to 5.4
8.0

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m 10 to 12
-6.5

Otherwise Unclassified Properties

Density, g/cm3 2.9 to 3.3
4.5

Common Calculations

Stiffness to Weight: Axial, points 55 to 63
35
Stiffness to Weight: Bending, points 69 to 80
49
Thermal Diffusivity, mm2/s 31 to 74
15