This website uses cookies to improve service quality. You will find more information about cookies on the privacy policy page.

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.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
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.