Boron Nitride Properties

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

The crystal framework of hexagonal boron nitride has a similar graphite layered framework, showing a loosened, lubricating, moisture-absorbing, light and other properties of white powder, so it is likewise called "white graphite". Academic thickness 2.27 g/cm3, specific gravity: 2.43, Mohr solidity = 2.
Hexagonal boron nitride has great electrical insulation, thermal conductivity, chemical stability, no evident melting point, 3000 ℃ in 0.1 MPA nitrogen, warmth resistance to 2000 ℃ in neutral reduction atmosphere, 2800 ℃ in nitrogen and argon, inadequate stability in oxygen atmosphere, and temperature level below 1000 ℃. The growth coefficient of hexagonal boron nitride amounts that of quartz, yet its thermal conductivity is ten times that of quartz.
Hexagonal boron nitride does not dissolve chilly water. When the water is steamed, it hydrolyses really gradually as well as creates a percentage of boric acid as well as ammonia, which does not react with weak acid as well as strong base at area temperature. It is a little soluble in warm acid and can only be disintegrated with liquified salt hydroxide and potassium hydroxide.

Boron Nitride Properties
1. High warm resistance: sublimation at 3000 ℃, its toughness at 1800 ℃ is twice that at room temperature, air-cooled at 1500 ℃ to area 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 highest possible thermal conductivity amongst ceramic products above 530C.
3, reduced thermal expansion coefficient: the expansion coefficient of 2 × & times; 10-6 is 2nd just to quartz glass, which is the tiniest in porcelains, coupled with its high thermal conductivity, so the thermal shock resistance is great.
4. Exceptional electrical homes: great insulation at high temperature, 1014 Ω& Omega;- cm,2000 at 25 ℃ as well as 103 Ω& Omega;- cm at 25 ℃. It is the most effective high temperature shielding product in porcelains, with malfunction voltage 3KV/MV, low dielectric loss 108HZ 2.5 × & times; 10-4, dielectric continuous 4, transparent to microwave as well as infrared.
5. Good rust resistance: it does not react with basic steels (iron, copper, aluminum, lead, etc), unusual earth metals, rare-earth elements, semiconductor products (germanium, silicon, potassium arsenide), glass, liquified salts (crystal, fluoride, slag), not natural acid and antacid.
6. Low friction coefficient: U is 0.16, does not raise at high temperature, is more resistant to high temperature than molybdenum disulfide as well as graphite, oxidation environment can be consumed to 900C, vacuum cleaner can be utilized at 2000 ℃.
7. High pureness great B is high: its pollutant material is much less than 10PPM, however B material is greater than 43.6%.
8. Machinability: its hardness is Morse 2, so it can be processed right into parts with high accuracy by basic machining methods.

What is hexagonal boron nitride made use of in?
Hexagonal boron nitride can be made use of in the manufacture of TiB2/BN composite porcelains, progressed refractories and also superhard products, splitting up rings of horizontal constant rolling steel, high temperature resistant lubes and high temperature coverings, along with raw materials for the synthesis of cubic boron nitride.

Specific usages:
1. Boron nitride is a mold launch representative for steel developing as well as a lube for steel cord illustration.
2. Special electrolysis as well as resistance materials of boron nitride at heat.
3. Boron nitride is suitable for heat solid lubricants, extrusion antiwear additives, ceramic composite additives, refractories and antioxidant ingredients, specifically for liquified steel Faustian events, warm enhancement additives and also heat immune insulation materials.
4. Boron nitride is suitable for heat-sealed desiccant of transistor and additive of polymer such as plastic resin.
5. Boron nitride items pressed into numerous shapes can be made use of as high temperature, high pressure, insulation as well as heat dissipation parts.
6. Boron nitride is a thermal securing material in aerospace.
7. With the engagement of catalyst, cubic boron nitride can be transformed right into cubic boron nitride as difficult as ruby by heat and high stress treatment.
8. Boron nitride is the structural material of atomic reactor.
9. Boron nitride is suitable for the nozzles of aircraft and also rocket engines.
10. Boron nitride is an insulator of high voltage, high regularity power as well as plasma arc.
11. Boron nitride is a packaging material to stop neutron radiation.
12. The superhard product made from boron nitride can be made into high-speed cutting devices and drills for geological exploration and oil exploration.
13. Boron nitride is utilized in metallurgy for splitting up ring of continual spreading steel, flow groove of amorphous iron, demoulding agent of continuous casting aluminum (numerous optical glass removing representatives).
14. Boron nitride is an evaporator for all sort of capacitor movie plating, image tube plating, display plating.
15. Boron nitride appropriates for all sort of fresh-keeping aluminized bags and so on.
16. Boron nitride is a selection of laser anti-counterfeiting light weight aluminum plating, trademark gilding materials, all type of cigarette labels, beer tags, product packaging boxes, cigarette boxes.
17. Boron nitride is suitable for cosmetics. Can be used for lipstick fillers, safe and also lubricating, yet also glossy.

Boron Nitride Cost
The cost is affected by numerous aspects consisting of the supply as well as need out there, industry patterns, financial task, market sentiment, and unexpected events.
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Boron Nitride Provider
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