Boron Nitride

Hexagonal Boron Nitride -White solid material -Purity quotient:99.5% -High thermal conductivit

1.Hexagonal Boron  is a white solid material in the as produced hot pressed form. It is a low porosity solid. It is easily machined into complex shapes using standard carbide tooling. The material is anisotropic in its electrical and mechanical properties due to the platy hexagonal crystals and their orientation during the hot press consolidation.

2.Key Properties: 

High thermal conductivity; Low thermal expansion; Good thermal shock resistance; High electrical resistance; Low dielectric constant and loss tangent; Microwave transparency; Non toxic; Easily machined — non abrasive and lubricious; Chemically inert; Not wet by most molten metals.

3.Uses:

 Structural material in atomic reactor; spout of plane, rocket engine; High temperature solid lubricant and many kinds of parting agent of precision molding products; High temperature resistant, anticorrosive boron nitride and boron nitride compound ceramics; Synthesize cubic boron nitride; Compression resistant and high temperature resistant lubricating grease; All kinds of high temperature resistant, anticorrosion coating; Insulator for high pressure high frequency electricity and plasma arc; Ox dating additive for refractory materials.

 

4.  Special materials.

(1) High temperature solid lubricant and many kinds of parting agent of precision molding products.

(2) High temperature resistant, anticorrosive boron nitride and boron nitride compound ceramics

(3) Synthesize cubic boron nitride

(4) Compression resistant and high temperature resistant lubricating grease

(5) All kinds of high temperature resistant, anticorrosion coating

(6) Insulator for high pressure high frequency electricity and plasma arc.

(7) Oxidizing additive for refractory materials

 

 

Category/Index	Item/Unit			High purity born nitride
Density	g/cm3			2.0—2.1
Physical Performance	Appearance			white/yellowish
	Compression Strength      kg/m			5.0
	Moh's hardness			2
Thermal Performance	Thermal Conductivity W/m.k		25°C	110
			1500°C	30
	Coefficient Of Thermal Expansion (Heated to 1500°C)			0.49
	Working Environment Temperature	Oxidizing Atmosphere		850°C
		Inertia		2500°C
		vacuum		3000°C
Electrical Functions	Volume Resistivity 25°C(Ω-cm)			>1015
	Dielectric Constant  108Hz			4.0
	Breakdown Voltage (Kv/mm)			2-3
Chemical Composition	B+N			99.5%
	Oxygen Content			< 0.4%
	Carbon Content			< 0.02%

 

 

Boron Nitride