Boron nitride powders for thermal management application

Technical Data Sheet

Chemical formula: BN

Chemical name: Boron nitride

Appearance: White powder

HS code: 28500020

Available grades: CK-1, A100

Packing: 20 kg carton drums with polyethylene inlet


Typical Values

Product Type


Tap density, g/cm3

Specific Surface

 Area (BET) m2/g

Average particle

 size, d50 μm

Grade SK-1

BN min. 98%,

B2O3 max. 0.3%


2 – 4

10 – 15

Grade A100

BN min. 98%,

B2O3 max. 0.3%

0,3 – 0,6

5 – 11

40 – 100


Boron nitride powders for thermal management applications are inert, white ceramic materials with a platy, hexagonal crystal structure with the following advantages:

  • High thermal conductivity for efficient heat dissipation
  • Low density and light weight for high filling properties
  • Low dielectric constant for high performance of electronic devices

Powders are available in platelets and agglomerated form with a range of density and porosity options. Agglomerates provide more efficient particle packing due to granular morphology. Platelets with platy lamellar structure promote an efficient heat spreading in polymer materials.