Boron Nitride (h-BN)
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Description
Boron nitride is a chemical compound with equal numbers of boron and nitrogen atoms. The hexagonal form (HBN) corresponding to graphite is the softest and most stable form among BN polymorphs, and is therefore used as a lubricant and an additive to cosmetic products.
Properties
General
Density ρ
2.1 g/cm³ at 20 °C
Mechanical
Elastic modulus E
20 - 100 GPa at 20 °C
Flexural strength σbend
50 - 100 MPa at 20 °C
Hardness, Mohs HM
9.5 - 10 [-] at 20 °C
Tensile strength Rm
27 - 83 MPa at 20 °C
Yield strength YS
27 - 83 MPa at 20 °C
Chemical properties
Element
Weight %
Comment
N
50 - 58.3 %
B
40 - 41.9 %
O
0.3 - 3 %
Ca
0.2 - 2 %
Other
0.2 - 0.3 %
Chloride, Iron, Aluminum, Silicon
This material data has been provided by Advanced Ceramic Materials.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.
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