Boron Nitride Properties

Boron nitride is a crystal made up of nitrogen atoms and also boron atoms. The crystal framework is separated right into hexagonal boron nitride (HBN), very closely stuffed hexagonal boron nitride (WBN) and also cubic boron nitride.

The crystal structure of hexagonal boron nitride has a similar graphite layered framework, showing a loose, lubricating, moisture-absorbing, light and various other residential or commercial properties of white powder, so it is likewise called "white graphite". Academic density 2.27 g/cm3, certain gravity: 2.43, Mohr firmness = 2.
Hexagonal boron nitride has good electric insulation, thermal conductivity, chemical stability, no apparent melting point, 3000 ℃ in 0.1 MPA nitrogen, warmth resistance to 2000 ℃ in neutral reduction environment, 2800 ℃ in nitrogen and also argon, bad stability in oxygen atmosphere, and also temperature below 1000 ℃. The growth coefficient of hexagonal boron nitride is equivalent to that of quartz, but its thermal conductivity is 10 times that of quartz.
Hexagonal boron nitride does not liquify cold water. When the water is boiled, it hydrolyses really gradually and creates a percentage of boric acid and also ammonia, which does not respond with weak acid and also strong base at area temperature level. It is a little soluble in hot acid as well as can just be broken down with liquified salt hydroxide and potassium hydroxide.

Boron Nitride Residences
1. High heat resistance: sublimation at 3000 ℃, its stamina at 1800 ℃ is two times that at space temperature, air-cooled at 1500 ℃ to space temperature for dozens of times, as well as does not soften at 2800 ℃ in inert gas.
2. High thermal conductivity: the hot-pressed products coincide as pure iron, and 33W/M. K has the highest possible thermal conductivity among ceramic materials above 530C.
3, low thermal development coefficient: the growth coefficient of 2 × & times; 10-6 is second only to quartz glass, which is the smallest in ceramics, coupled with its high thermal conductivity, so the thermal shock resistance is great.
4. Excellent electrical residential or commercial properties: good insulation at high temperature, 1014 Ω& Omega;- cm,2000 at 25 ℃ and also 103 Ω& Omega;- centimeters at 25 ℃. It is the most effective heat shielding product in porcelains, with break down voltage 3KV/MV, reduced dielectric loss 108HZ 2.5 × & times; 10-4, dielectric continuous 4, clear to microwave and also infrared.
5. Good deterioration resistance: it does not react with general steels (iron, copper, light weight aluminum, lead, and so on), uncommon planet steels, precious metals, semiconductor products (germanium, silicon, potassium arsenide), glass, liquified salts (crystal, fluoride, slag), inorganic acid as well as alkali.
6. Reduced rubbing coefficient: U is 0.16, does not enhance at high temperature, is extra resistant to high temperature than molybdenum disulfide and also graphite, oxidation atmosphere can be consumed to 900C, vacuum cleaner can be used at 2000 ℃.
7. High pureness good B is high: its pollutant content is less than 10PPM, but B web content is more than 43.6%.
8. Machinability: its solidity is Morse 2, so it can be processed into get rid of high precision by basic machining approaches.

What is hexagonal boron nitride used in?
Hexagonal boron nitride can be made use of in the manufacture of TiB2/BN composite porcelains, progressed refractories and superhard materials, splitting up rings of horizontal continual rolling steel, heat immune lubricating substances as well as heat coatings, along with raw materials for the synthesis of cubic boron nitride.

Particular uses:
1. Boron nitride is a mold release agent for steel creating and a lubricant for steel wire illustration.
2. Unique electrolysis and also resistance materials of boron nitride at heat.
3. Boron nitride is suitable for high temperature strong lubes, extrusion antiwear ingredients, ceramic composite ingredients, refractories and also antioxidant additives, specifically for molten metal Faustian occasions, warmth enhancement ingredients and also heat immune insulation materials.
4. Boron nitride appropriates for heat-sealed desiccant of transistor and also additive of polymer such as plastic material.
5. Boron nitride products pressed right into numerous shapes can be utilized as heat, high stress, insulation as well as warm dissipation elements.
6. Boron nitride is a thermal securing material in aerospace.
7. With the participation of catalyst, cubic boron nitride can be changed into cubic boron nitride as tough as diamond by heat as well as high stress therapy.
8. Boron nitride is the architectural 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 regularity electrical energy and plasma arc.
11. Boron nitride is a product 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 and also oil drilling.
13. Boron nitride is made use of in metallurgy for splitting up ring of continuous casting steel, circulation groove of amorphous iron, demoulding agent of continual spreading aluminum (different optical glass stripping agents).
14. Boron nitride is an evaporator for all kinds of capacitor movie plating, picture tube plating, display plating.
15. Boron nitride is suitable for all kinds of fresh-keeping aluminized bags and so forth.
16. Boron nitride is a variety of laser anti-counterfeiting aluminum plating, trademark gilding materials, all sort of cigarette tags, beer labels, product packaging boxes, cigarette boxes.
17. Boron nitride is suitable for cosmetics. Can be made use of for lipstick fillers, safe and also lubricating, however additionally glossy.

Boron Nitride Price
The price is influenced by lots of elements including the supply as well as need in the market, sector patterns, financial activity, market sentiment, and also unforeseen events.
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Boron Nitride Supplier
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