Boron Nitride Properties

Boron nitride is a crystal composed of nitrogen atoms and boron atoms. The crystal structure is split into hexagonal boron nitride (HBN), closely packed hexagonal boron nitride (WBN) as well as cubic boron nitride.

The crystal framework of hexagonal boron nitride has a similar graphite layered framework, showing a loosened, lubricating, moisture-absorbing, light as well as various other residential or commercial properties of white powder, so it is also called "white graphite". Academic thickness 2.27 g/cm3, details gravity: 2.43, Mohr firmness = 2.
Hexagonal boron nitride has great electric insulation, thermal conductivity, chemical security, no evident melting factor, 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 development coefficient of hexagonal boron nitride is equivalent to that of quartz, yet its thermal conductivity is 10 times that of quartz.
Hexagonal boron nitride does not dissolve chilly water. When the water is steamed, it hydrolyses very slowly and produces a percentage of boric acid and ammonia, which does not respond with weak acid and also solid base at area temperature level. It is slightly soluble in hot acid as well as can just be decomposed with molten salt hydroxide and potassium hydroxide.

Boron Nitride Properties
1. High warm resistance: sublimation at 3000 ℃, its stamina at 1800 ℃ is twice that at space temperature, air-cooled at 1500 ℃ to room temperature for loads 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, as well as 33W/M. K has the greatest thermal conductivity amongst ceramic products over 530C.
3, low thermal expansion coefficient: the expansion coefficient of 2 × & times; 10-6 is second just to quartz glass, which is the tiniest in ceramics, combined with its high thermal conductivity, so the thermal shock resistance is very good.
4. Outstanding electric homes: excellent insulation at heat, 1014 Ω& Omega;- centimeters,2000 at 25 ℃ as well as 103 Ω& Omega;- cm at 25 ℃. It is the most effective heat shielding product in porcelains, with malfunction voltage 3KV/MV, reduced dielectric loss 108HZ 2.5 × & times; 10-4, dielectric consistent 4, clear to microwave and also infrared.
5. Great rust resistance: it does not respond with general steels (iron, copper, aluminum, lead, etc), uncommon earth metals, rare-earth elements, semiconductor products (germanium, silicon, potassium arsenide), glass, liquified salts (crystal, fluoride, slag), not natural acid as well as antacid.
6. Low rubbing coefficient: U is 0.16, does not boost at heat, is extra immune to high temperature 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 impurity material is much less than 10PPM, but B material is greater than 43.6%.
8. Machinability: its solidity is Morse 2, so it can be refined right into parts with high precision by basic machining approaches.

What is hexagonal boron nitride made use of in?
Hexagonal boron nitride can be used in the manufacture of TiB2/BN composite porcelains, advanced refractories and also superhard products, separation rings of straight continual rolling steel, high temperature resistant lubes and high temperature finishings, along with raw materials for the synthesis of cubic boron nitride.

Particular usages:
1. Boron nitride is a mold and mildew release representative for steel creating and also a lubricating substance for metal wire illustration.
2. Unique electrolysis and also resistance materials of boron nitride at heat.
3. Boron nitride appropriates for heat solid lubes, extrusion antiwear additives, ceramic composite additives, refractories and antioxidant ingredients, especially for molten steel Faustian occasions, heat enhancement ingredients and high temperature resistant insulation materials.
4. Boron nitride is suitable for heat-sealed desiccant of transistor and also additive of polymer such as plastic material.
5. Boron nitride products pressed right into various shapes can be utilized as heat, high stress, insulation and also warmth dissipation components.
6. Boron nitride is a thermal securing product in aerospace.
7. With the participation of catalyst, cubic boron nitride can be changed right into cubic boron nitride as hard as ruby by heat and also high pressure therapy.
8. Boron nitride is the architectural product 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 electrical energy as well as plasma arc.
11. Boron nitride is a product packaging product to prevent neutron radiation.
12. The superhard material made from boron nitride can be made right into high-speed cutting tools and drills for geological expedition and also oil boring.
13. Boron nitride is utilized in metallurgy for splitting up ring of constant casting steel, circulation groove of amorphous iron, demoulding agent of constant spreading light weight aluminum (numerous optical glass removing agents).
14. Boron nitride is an evaporator for all sort of capacitor film plating, photo tube plating, show plating.
15. Boron nitride is suitable for all kinds of fresh-keeping aluminized bags and so on.
16. Boron nitride is a selection of laser anti-counterfeiting aluminum plating, trademark gilding products, all sort of cigarette labels, beer labels, product packaging boxes, cigarette boxes.
17. Boron nitride is suitable for cosmetics. Can be utilized for lipstick fillers, safe and lubricating, however additionally shiny.

Boron Nitride Cost
The cost is influenced by lots of variables consisting of the supply and demand out there, market trends, economic activity, market view, and also unexpected occasions.
If you are searching for the most recent Boron Nitride powder rate, you can send us your questions for a quote. (brad@ihpa.net)

Boron Nitride Provider
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