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Boron Nitride Properties

Boron nitride is a crystal made up of nitrogen atoms and boron atoms. The crystal structure is separated right into hexagonal boron nitride (HBN), very closely jam-packed hexagonal boron nitride (WBN) as well as cubic boron nitride.

The crystal framework of hexagonal boron nitride has a comparable graphite split framework, revealing a loose, lubricating, moisture-absorbing, light and various other homes of white powder, so it is likewise called "white graphite". Theoretical density 2.27 g/cm3, certain gravity: 2.43, Mohr firmness = 2.
Hexagonal boron nitride has good electric insulation, thermal conductivity, chemical stability, no obvious melting factor, 3000 ℃ in 0.1 MPA nitrogen, heat resistance to 2000 ℃ in neutral reduction environment, 2800 ℃ in nitrogen and also argon, inadequate security in oxygen atmosphere, and also temperature listed below 1000 ℃. The expansion coefficient of hexagonal boron nitride is equivalent to that of quartz, however its thermal conductivity is 10 times that of quartz.
Hexagonal boron nitride does not dissolve cold water. When the water is boiled, it hydrolyses very gradually and creates a percentage of boric acid as well as ammonia, which does not react with weak acid and also solid base at area temperature. It is a little soluble in warm acid as well as can just be decomposed with molten salt hydroxide and also potassium hydroxide.

Boron Nitride Characteristics
1. High warm resistance: sublimation at 3000 ℃, its toughness at 1800 ℃ is two times that at room temperature, air-cooled at 1500 ℃ to room temperature level for lots of times, and does not soften at 2800 ℃ in inert gas.
2. High thermal conductivity: the hot-pressed items are the same as pure iron, and also 33W/M. K has the greatest thermal conductivity among ceramic products above 530C.
3, reduced thermal expansion coefficient: the development coefficient of 2 × & times; 10-6 is 2nd just to quartz glass, which is the smallest in ceramics, paired with its high thermal conductivity, so the thermal shock resistance is great.
4. Superb electric residential or commercial properties: good insulation at high temperature, 1014 Ω& Omega;- centimeters,2000 at 25 ℃ and also 103 Ω& Omega;- cm at 25 ℃. It is the best heat shielding material in ceramics, with breakdown voltage 3KV/MV, reduced dielectric loss 108HZ 2.5 × & times; 10-4, dielectric continuous 4, transparent to microwave and infrared.
5. Excellent rust resistance: it does not respond with basic metals (iron, copper, aluminum, lead, and so on), unusual earth steels, precious metals, semiconductor materials (germanium, silicon, potassium arsenide), glass, liquified salts (crystal, fluoride, slag), not natural acid as well as antacid.
6. Low friction coefficient: U is 0.16, does not raise at high temperature, is extra immune to heat than molybdenum disulfide and also graphite, oxidation environment can be used up to 900C, vacuum can be made use of at 2000 ℃.
7. High pureness great B is high: its contamination material is less than 10PPM, however B material is greater than 43.6%.
8. Machinability: its hardness is Morse 2, so it can be refined into parts with high precision by general machining methods.

What is hexagonal boron nitride made use of in?
Hexagonal boron nitride can be utilized in the manufacture of TiB2/BN composite porcelains, advanced refractories as well as superhard materials, separation rings of horizontal constant rolling steel, heat immune lubricants as well as heat coverings, in addition to raw materials for the synthesis of cubic boron nitride.

Particular uses:
1. Boron nitride is a mold and mildew release agent for steel creating and a lubricant for steel cable illustration.
2. Special electrolysis and resistance products of boron nitride at high temperature.
3. Boron nitride is suitable for heat strong lubes, extrusion antiwear additives, ceramic composite ingredients, refractories and also antioxidant additives, especially for molten metal Faustian celebrations, heat improvement ingredients and heat resistant insulation products.
4. Boron nitride is suitable for heat-sealed desiccant of transistor and additive of polymer such as plastic material.
5. Boron nitride items pressed right into various shapes can be used as heat, high stress, insulation as well as heat dissipation components.
6. Boron nitride is a thermal securing product in aerospace.
7. With the participation of catalyst, cubic boron nitride can be changed into cubic boron nitride as difficult as diamond by high temperature and also high pressure treatment.
8. Boron nitride is the structural material of atomic reactor.
9. Boron nitride is suitable for the nozzles of airplane and rocket engines.
10. Boron nitride is an insulator of high voltage, high frequency electricity and plasma arc.
11. Boron nitride is a packaging material to stop neutron radiation.
12. The superhard material made from boron nitride can be made right into high-speed cutting devices and also drills for geological expedition as well as oil drilling.
13. Boron nitride is used in metallurgy for separation ring of continual casting steel, circulation groove of amorphous iron, demoulding representative of continual spreading aluminum (various optical glass removing representatives).
14. Boron nitride is an evaporator for all type of capacitor movie plating, photo tube plating, show plating.
15. Boron nitride appropriates for all kinds of fresh-keeping aluminized bags and so on.
16. Boron nitride is a range of laser anti-counterfeiting aluminum plating, trademark gilding materials, all sort of cigarette tags, beer tags, packaging boxes, cigarette boxes.
17. Boron nitride is suitable for cosmetics. Can be made use of for lipstick fillers, non-toxic and also lubricating, however also glossy.

Boron Nitride Rate
The rate is influenced by several elements consisting of the supply as well as demand in the market, market fads, financial task, market belief, and also unexpected occasions.
If you are looking for the most recent Boron Nitride powder price, you can send us your inquiry for a quote. (brad@ihpa.net)

Boron Nitride Supplier
Technology Co. Ltd. is a trusted BN producer and also BN provider with over 12-year-experience. We ship our items throughout the globe.

If you are looking for top quality Boron Nitride powder, please do not hesitate to contact us and also send an inquiry. (brad@ihpa.net)

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