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Titanium Diboride vs. Hexagonal Boron Nitride

Both titanium diboride and hexagonal boron nitride are non-oxide engineering ceramics. There are 13 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

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

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 3540
21 to 250
Elastic (Young's, Tensile) Modulus, GPa 290
14 to 60
Flexural Strength, MPa 380
18 to 140
Poisson's Ratio 0.11

Thermal Properties

Maximum Temperature: Mechanical, °C 1270
1030 to 2350
Specific Heat Capacity, J/kg-K 870
840 to 1610
Thermal Conductivity, W/m-K 58
29 to 96
Thermal Expansion, µm/m-K 8.0
0.54 to 18

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m -6.5
13 to 15

Otherwise Unclassified Properties

Density, g/cm3 4.5
1.9 to 2.1

Common Calculations

Stiffness to Weight: Axial, points 35
4.1 to 18
Stiffness to Weight: Bending, points 49
42 to 69
Thermal Diffusivity, mm2/s 15
9.9 to 34