Boron Nitride Properties

Boron nitride is a crystal made up of nitrogen atoms and boron atoms. The crystal structure is divided right into hexagonal boron nitride (HBN), carefully jam-packed hexagonal boron nitride (WBN) and cubic boron nitride.

The crystal structure of hexagonal boron nitride has a comparable graphite split framework, showing a loosened, lubricating, moisture-absorbing, light as well as other buildings of white powder, so it is additionally called "white graphite". Theoretical density 2.27 g/cm3, specific gravity: 2.43, Mohr firmness = 2.
Hexagonal boron nitride has excellent electrical insulation, thermal conductivity, chemical security, no obvious melting point, 3000 ℃ in 0.1 MPA nitrogen, heat resistance to 2000 ℃ in neutral decrease environment, 2800 ℃ in nitrogen as well as argon, bad security in oxygen ambience, and temperature below 1000 ℃. The development coefficient of hexagonal boron nitride amounts that of quartz, however its thermal conductivity is ten times that of quartz.
Hexagonal boron nitride does not liquify cold water. When the water is boiled, it hydrolyses extremely gradually as well as creates a small amount of boric acid and also ammonia, which does not respond with weak acid and strong base at room temperature level. It is a little soluble in warm acid and also can just be disintegrated with liquified salt hydroxide and also potassium hydroxide.

Boron Nitride Features
1. High warmth resistance: sublimation at 3000 ℃, its strength at 1800 ℃ is two times that at area temperature, air-cooled at 1500 ℃ to space temperature level for lots of times, and also does not soften at 2800 ℃ in inert gas.
2. High thermal conductivity: the hot-pressed products are the same as pure iron, and also 33W/M. K has the highest possible thermal conductivity amongst ceramic products over 530C.
3, reduced thermal growth coefficient: the growth coefficient of 2 × & times; 10-6 is second only to quartz glass, which is the tiniest in porcelains, coupled with its high thermal conductivity, so the thermal shock resistance is great.
4. Exceptional electric homes: excellent insulation at heat, 1014 Ω& Omega;- centimeters,2000 at 25 ℃ and 103 Ω& Omega;- centimeters at 25 ℃. It is the best high temperature shielding product in ceramics, with breakdown voltage 3KV/MV, reduced dielectric loss 108HZ 2.5 × & times; 10-4, dielectric continuous 4, clear to microwave as well as infrared.
5. Good deterioration resistance: it does not react with general metals (iron, copper, aluminum, lead, etc), unusual earth metals, precious metals, semiconductor products (germanium, silicon, potassium arsenide), glass, liquified salts (crystal, fluoride, slag), inorganic acid and alkali.
6. Reduced rubbing coefficient: U is 0.16, does not boost at high temperature, is much more immune to heat than molybdenum disulfide as well as graphite, oxidation atmosphere can be used up to 900C, vacuum cleaner can be used at 2000 ℃.
7. High pureness great B is high: its pollutant web content is less than 10PPM, but B content is greater than 43.6%.
8. Machinability: its solidity is Morse 2, so it can be processed right into parts with high precision by general machining approaches.

What is hexagonal boron nitride made use of in?
Hexagonal boron nitride can be utilized in the manufacture of TiB2/BN composite ceramics, advanced refractories as well as superhard products, separation rings of horizontal continuous rolling steel, heat resistant lubes and high temperature layers, along with basic materials for the synthesis of cubic boron nitride.

Details uses:
1. Boron nitride is a mold release agent for steel creating as well as a lubricating substance for metal cable illustration.
2. Unique electrolysis and also resistance materials of boron nitride at high temperature.
3. Boron nitride is suitable for high temperature strong lubricants, extrusion antiwear additives, ceramic composite ingredients, refractories as well as antioxidant additives, especially for liquified steel Faustian celebrations, warm enhancement ingredients and also heat resistant insulation products.
4. Boron nitride appropriates for heat-sealed desiccant of transistor as well as additive of polymer such as plastic material.
5. Boron nitride products pressed right into different forms can be utilized as heat, high stress, insulation and heat dissipation components.
6. Boron nitride is a thermal protecting material in aerospace.
7. With the participation of driver, cubic boron nitride can be transformed into cubic boron nitride as tough as diamond by high temperature and high stress treatment.
8. Boron nitride is the architectural product of atomic reactor.
9. Boron nitride is suitable for the nozzles of airplane as well as rocket engines.
10. Boron nitride is an insulator of high voltage, high regularity electrical energy and also plasma arc.
11. Boron nitride is a product packaging material to prevent neutron radiation.
12. The superhard product made from boron nitride can be made into high-speed cutting devices and also drills for geological expedition as well as oil exploration.
13. Boron nitride is utilized in metallurgy for splitting up ring of continuous spreading steel, flow groove of amorphous iron, demoulding agent of continual casting aluminum (different optical glass stripping representatives).
14. Boron nitride is an evaporator for all type of capacitor movie plating, photo tube plating, present plating.
15. Boron nitride appropriates for all sort of fresh-keeping aluminized bags and so forth.
16. Boron nitride is a range of laser anti-counterfeiting aluminum plating, trademark gilding products, all type of cigarette labels, beer tags, packaging boxes, cigarette boxes.
17. Boron nitride is suitable for cosmetics. Can be made use of for lipstick fillers, non-toxic as well as lubricating, but also shiny.

Boron Nitride Rate
The cost is affected by lots of variables including the supply as well as need on the market, sector trends, economic task, market belief, and also unexpected events.
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Boron Nitride Supplier
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