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Boron Nitride (BN) Powder

Boron nitride (BN) powders are produced by Momentive in more than 70 individual (standard and custom) grades to meet a wide variety of application needs.  Contact Momentive for help in determining the best boron nitride grade for your specific application.

 

Boron Nitride Powder

 

 

General Characteristics of BN 

  • Excellent Electrical Insulator  
  • Low Dielectric Constant
  • Low Dielectric Loss
  • High Temperature Stability
  • Good Thermal Conductor
  • Lubricious
  • Inert & Chemically Stable
  • Non-Wetting to Molten Metals

For use in

  • Electrically insulating/thermally conductive fillers for heaters, polymer matrices, adhesives, pastes and potting compounds  

  • Lubrication applications for extreme heat or cold, extreme pressure, vacuum environments or harsh chemical exposures
  • Refractories and refractory coatings
  • Mold/die release
  • Metal/ceramic and ceramic/matrix composites
  • Lubricants with incidental food contact (several grades carry NSF H-2, HX-2, and HX-1 designations)
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Platelets

Momentive manufactures several grades of BN powder that have a crystalline hexagonal platelet morphology.  These powders have an average particle size of about 10μm, surface areas that range from 2 to 20 m2/g and tap densities from .25 to .55 g/cc.  They show good dispersion, with enhanced lubricity and thermal properties. These powders exhibit the unique properties of boron nitride in a form readily used in the production of many advanced materials.

 

AC6004
Typical platelet grade

 

Grade

Particle

Size

Surface

Area

Tap Density

NX1

0.8

20

0.12

AC6041

5

15

0.4

NX5

5

16

0.25

HCPH

8

17

0.35

AC6003

9

29

0.35

HCV

9

40

0.5

AC6069

9

8

0.25

HCP

10

13

0.4

HCPL

10

7

0.5

AC6004

12

2

0.55

 

 

Agglomerates

Momentive offers boron nitride powders that are made up of particles which are agglomerates of hexagonal BN crystals.  These powders can have an average particle size as large as 300μm, surface areas that range from 2 to 40 m2/g and tap densities from .25 to 1.0 g/cc.  These powders are granular with good flow and blend characteristics as well as high thermal conductivity and good lubrication qualities. 



AC6028
Typical agglomerate grade
 
 
 

Grade

Particle

Size

Surface

Area

Tap Density

NX10

10

14

0.4

AC6028

125

3.2

0.7

AC6001

125

7

0.8

HCM

175

2

1

HCR48

250

2.6

1.1

AC6103

250

6.5

0.5

HCJ48

275

1.3

0.9

 
 
 
 

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