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Description:
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.
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.
Main Applications:
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.
Technical index
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% |
|||
Vaccum-packed in aluminium foil bag, in which is put plastic bag. Net weight 1kg a bag.
1,Provide free sample for test and evaluation
2,Fast delivery and good customer service
3,Provide guideline and consulting service through your manufaturing process
1,One of the largest professional chemical additive manufactures in China
2,Highest product quality,competitive price and great customer service
3,Over ten year experience of chemical additive related industry
Send Inquiry to This Supplier
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