How heat resistant is boron nitride
What is boron nitride?
Boron nitride is usually black, brown or dark red crystals with sphalerite structure and also excellent thermal conductivity. Its firmness is 2nd only to ruby, a superhard product commonly made use of as tool materials and abrasives. Boron nitride has chemical resistance and also no disintegration by inorganic acid as well as water. The boron nitrogen bond is broken in warm, concentrated alkali. Oxidation begins airborne at 1200 ℃. Disintegration begins at concerning 2700 ℃ in a vacuum cleaner. It is slightly soluble in hot acid and insoluble in cool water. The relative density is 2.29. The compressive strength is 170 mph. The optimum service temperature is 900 ℃ in the oxidation ambience as well as 2800 ℃ in the non-active reduction ambience, but the lubrication performance is inadequate at space temperature level. A lot of buildings of boron nitride are far better than carbon materials. For hexagonal boron nitride: the rubbing coefficient is shallow Excellent high-temperature security, excellent thermal shock resistance, high toughness, high thermal conductivity, low development coefficient, high resistivity, rust resistance, microwave or infrared transmission.
What is the duty of boron nitride? Hexagonal boron nitride can make TiB2/BN composite ceramics, progressed refractories as well as superhard material; splitting up rings for constant horizontal rolling, high-temperature immune lubricating substances and also high-temperature coatings. It is additionally a basic material for synthesizing cubic boron nitride. Furthermore, it is additionally a very exceptional high-temperature lubricating substance, which can be made use of as a component of self-lubricating bearings. Boron nitride has numerous physical homes comparable to graphite, called white graphite. It resembles mica, baby powder, and silicate; Fats are jointly described as white strong lubricating substances. As a lube, boron nitride can be distributed in heat-resistant lubricating grease, water or solvent; It is splashed on the rubbing surface area to create a dry movie after the solvent volatilizes and afterwards completed the material, ceramic, as well as metal surface layers as a high-temperature immune self-lubricating composite material. It is utilized in aerospace design, or the boron nitride powder can be straight coated on the guide rail surface. The boron nitride suspension oil is white or yellow. Therefore, it does not pollute fiber products in fabric machinery and can be widely used in the lubrication of synthetic fibre textile equipment.
Is Boron nitride dangerous to body?
Boron nitride is not poisonous, yet boron nitride powder is a cloud of dust unsafe to human health. Boron nitride powder is physically inert and also will certainly be detrimental to health when ingested, breathed in, and exposured to the skin as well as eyes. Consuming or breathing in will certainly trigger skin, breathing system, as well as kidney flow conditions.
Cost of boron nitride
Boron nitride bit dimension and also purity will certainly impact the item'' s cost, and the acquisition volume can likewise influence the expense of boron nitride. A huge quantity of big quantity will certainly be lower. The cost of boron nitride can be located on our business'' s main site.
Boron nitride vendor
Technology Co. Ltd.
, is a dependable as well as premium worldwide chemical material supplier as well as supplier. It has greater than 12 years of experience supplying ultra-high high quality chemicals and nanotechnology materials, including boride powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are seeking top notch and affordable hexagonal boron nitride powder, you are welcome to call us
or make inquiries any time.