Boron Nitride Ceramics:


Boron nitride is a crystal composed of a nitrogen atom and a boron atom. The chemical composition is 43.6% boron and
56.4% nitrogen with four different variants: hexagonal boron nitride (HBN), rhombohedral boron nitride (RBN),
cubic boron nitride (CBN) and wurtzite nitrogen. Boron (WBN).

Boron Nitride Ceramics properties:


Boron nitride ceramics have good heat resistance, thermal stability, thermal conductivity, high temperature dielectric strength,
and are ideal heat dissipation materials and high temperature insulation materials.

Boron nitride has good chemical stability and is resistant to most of the molten metal. It also has good self-lubricating properties.
Boron nitride products have low hardness and can be machined with an accuracy of 1/100 mm.

 

Technical Data

 

Item	Unit	Typical Values
Physical Properties
Color	White
Chemical Formula	/	BN
Content	43.6% boron, 56.4% nitrogen
Water Absorption	0
Mechanical Properties
Rockwell  Hardness(45N)	R45N	40
Vickers Hardness (Load 500g)	Gpa(Kg/mm²)	24.5-28.2
Flexural Strength	Mpa	350-600
Compressive Strength	Mpa	800
Modulus of Elasticity	Gpa	441/475
Thermal Properties
Thermal Conductivity	W/m·K	25.25-41
Thermal Expansion Coefficient	10-6/ºC	3.8-5.12
Melting point	°C	3000
Maximum Use Temperature	°C	1800
Electronic Properties
Dielectric Constant	3000K	9.10
Volume Resistivity(400~600ºC)	Ω.cm	2.3~5.6M

 

 

Lianyungang Highborn Technology CO.,LTD



Is a leading high-tech ceramic development and production enterprises.
Our ceramic products are widely used in various fields of automotive, metallurgy, machinery, electronic & electrical, food, chemical, medical and so on. With experienced engineers and talented workers, we are able to evaluate projects and drawings properly, make valuable suggestion, supply satisfying products. Our materials including:
- Alumina ceramic tube, alumina parts( 95% 96% 99% 99.5% 99.7% Al2O3 )
- Zirconia cermaic ( Yttria stabilized ZrO2 )
- Silicon Nitride ( GPS Gas pressure sintered & Hot pressed Si3N4 )
- Silicon carbide
- Boron Carbide ( B4C )
- Boron Nitride ( Hot pressed BN )
- Machinable Glass Ceramic
- Steatite, cordierite

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