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Boron Nitride Properties

Boron nutride is composed of both nitrogen and boron. You can divide the crystal structure into hexagonal hexagonal boron nutride, WBN, and cubic hexagonal boron-nitride.
The hexagonal boron-nitride crystal has the same graphite layered structures as graphite. This gives it its name "white graphite". Theoretical density: 2.27g/cm3, specific gravity: 2.43, Mohr Hardness = 2.
Hexagonalboron nitride is good at electrical insulation, thermal conductivity and chemical stability. Although hexagonal boron-nitride has the same expansion coefficient as quartz, its thermal conductivity exceeds that of quartz by tenfold.
Hexagonalboron nitride is not able to dissolve cold water. The water boils slowly, producing a very small amount of ammonia and boric acids. It is not soluble in hot acids and cannot be broken down with potassium hydroxide and molten sodium hydroxide.

Boron Nitride Properties
1. The heat resistance is high: Sublimation at 3000 at 1800. This strength can also be air-cooled at 1500 to ambient temperature for several dozens of time and not softens at 2800 in inert gases.
2. High thermal conductivity. The hot-pressed products behave the same way as pure iron. And 33W/M.K's thermal conductivity is higher than that of ceramic materials at 530C.
3, Low thermal expansion coefficient. The thermal shock resistance of ceramics is excellent due to its low expansion coefficient (2 x 10-6).
4. It has excellent electrical characteristics: it is good at insulation at high temperatures (1014 O-cm.2000 at 25 and 1033 O-cm. It's the most efficient ceramic high-temperature insulating material, having a breakdown voltage (3KV/MV), low dielectric loss (108HZ 2.5x10-4), dielectric constant 4, and transparent to microwave and infrared.
5. Excellent corrosion resistance: It does not react to iron, copper or aluminum. It is compatible with rare earth metals and precious metals as well as semiconductor materials (germanium-siliconium, potassium arsenide), glass and molten salts (crystals, fluoride, or slag), inorganic acids, and alkalis.
6. Low friction coefficient U of 0.16. This is at a lower temperature than graphite or molybdenum disulfide. You can use oxidation atmosphere up to 900C and vacuum at 2000.
7. The purity of high purity B is very high. Its impure content is below 10PPM and its content in B is greater than 43.6%.
8. Machinability: Its hardness is Morse 2. This allows it to be processed by general machining into precise parts.

Where is hexagonal Boron Nitride used?
Hexagonalboron nutride is used for making composite ceramics with TiB2/BN and other advanced materials.

Particular uses
1. Boron Nitride is used to release metal for molds and as a lubricant in wire drawing.
2. At high temperatures, special electrolysis and resistance materials made of boron-nitride
3. Boron nitride can be used for high temperatures solid lubricants.
4. Boron Nitride is suitable to heat seal a transistor's desiccant or as an additive of polymer, such as plastic resin.
5. Boron nitride products can be formed into different forms to serve as heat dissipation and insulation components.
6. Boron nitride can be used as a thermal shielding agent in aerospace.
7. Cubic boron nutride can be converted by the use of catalyst to make it as hard and as durable as diamond using high temperatures and high pressure.
8. Boron nitride, the structural material in an atomic bomb reactor.
9. Boron Nitride is suitable to be used as a nozzle in rocket and plane engines.
10. Boron Nitride is an insulator that can withstand high voltage, high frequency electricity, and plasma arc.
11. Boron nitride can be used to protect against neutron radiation.
12. Boron nitride is a superhard material that can be turned into cutting tools, drills and other high-speed equipment for drilling oil wells and geological exploration.
13. Boron Nitride is used inmetallurgy to separate ring of continuous-cast steel, flow groove, amorphous and demolding agent for continuous casting aluminum.
14.Boron Nitride is an evaporator that can be used for any type of display plating or picture tube plating.
15. Boron nitride can be used for all types of fresh-keeping, aluminized bags such as those that are ventilated.
16. Boron nitride can be used for a wide range of trademark gilding materials and laser anti-counterfeiting aluminium plating.
17. Cosmetics are compatible with Boron nitride. Non-toxic and lubricating lipstick filler, also available in glossy form.

Boron Nitride Price
Price is affected by many things, such as the demand and supply in the market and industry trends. Economic activity. Unexpected events.
For the most recent Boron Nitride powder prices please send an inquiry to receive a quotation. (brad@ihpa.net)

Boron Nitride Supplier
Technology Co. Ltd. (), is a trustworthy BN manufacturer, and BN provider with more than 12-years of experience. All of our products are available for shipment worldwide.

Send us an enquiry if you're looking for high quality Boron Nitride dust. (brad@ihpa.net)

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What is Molybdenum Carbide?

What is it? Molybdenum Cartbide ? Molybdenum carbide is a transition-metal carbide. It is one of a number of interstitial compound families with metallic properties that are formed by carbon entering into the crystallization of transition metals.
Molybdenum Carbide's main features
Molybdenum Carbide (Molybdenum Carbide), is a gray hexagonal crystalline. It has high melting points and hardness, excellent thermal and mechanical stability, good corrosion resistance and good durability. The melting point is 2692degC. Insoluble in water, lye, and slightly soluble with nitric acid.
These are the main catalytic reactions that molybdenum caride uses:
1. Hydrogenation hydrogenolysis reactions
2. Hydrodesulfurization HDS or hydrodenitrogenation HDN;
3. Isomerization reaction
4. Hydrocarbon conversion, synthesis reaction
5. Application in ammonia synthesis.
Molybdenum Carbide Properties
Other Titles Mo2C powder, dimolybdenum caride, dimolybdenum carbide
No. 12069-89-5
Combination Formula Mo2C
Molecular Weight 203.89
Appearance Gray Powder
Melting Point 2690
Boiling Point N/A
Density 9.18 g/cm3
Solubility of H2O N/A
Exact N/A
Molybdenum and Carbide Mo2C Pulp CAS 12069-89-5
Molybdenum Carbide: What are its applications?
The global consumption structure shows that molybdenum can be considered an ally of iron. Molybdenum is consumed in 80% of Western developed countries. Steel absorbs 30% of the molybdenum. Low alloy steel absorbs 30%. Drilling tools and cutting instruments account for 10%. Cast steel accounts 10%. The remaining 20% of molybdenum is consumed in molybdenum chemical, molybdenum-based lubricants, and petroleum refining. In the United States, 75% of the molybdenum used in steel production was quite common in 1998.
Additionally, molybdenum based alloys are becoming more common in electronics, metal processing, aerospace, and other industries.
1. Molybdenum-alloy
The most popular molybdenum alloy, TZM, is known for its high strength and extensive properties. The United States uses TZM alloy to make the turbine disc of its engine. It accounts for 15% in total molybdenum. There are 22 grades of molybdenum, including TZM alloys. In my country, molybdenum production was almost 200 tons in the early 1990s.
The mechanical properties of TZM or TZC molybdenum alloys are better than pure molybdenum. They are widely used in high-tech, mold, and other structural parts manufacturing. Since the 20th Century, we have successfully used them to make seamless steel pipes' hot perforated heads. Powder metallurgy technology's sintered molybdenum plug reduces the amount of raw material (50% in the as-cast condition) and extends the service life 1.5 to 2x.
This seamless tube, made from molybdenum/rhenium alloy (containing 50% Re), is extremely durable and can be used at temperatures close enough to its melting temperature.
The advantages of molybdenum, molybdenum, and molybdenum-alcohol alloys include high strength, excellent electrical and thermal conductivity, low thermal expansion coefficient, and similarity to glass used in electronic tube (grids & anodes), as well as being more easy to process than tungsten. So, plates, strips and foils are used in electronic tubes, electric light sources (supporting material), parts, and metal processing tools (diecasting and extrusion dens, forging s, forging, forging dies), turbine disks) and turbine disks These components are widely used.
2. Steel alloy elements
Molybdenum is an allies to steel. It can be combined with nickel and chrome as alloying elements to reduce embrittlement which often occurs during heat treatment in alloy steels. American has found a solution to the shortage in tungsten resources by using molybdenum as a substitute for tungsten in its high-speed stainless steel. According to research, molybdenum can have twice the power of tungsten. A steel that contains 18% tungsten could be replaced with steel containing 9 percent molybdenum (adding vanadium and chromium simultaneously), greatly reducing the steel production cost. The purpose of molybdenum, which is a component of stainless steel, is to increase corrosion resistance, improve high strength, and increase weldability. You can see that molybdenum has a significant role in the iron- and steel industry.
Molybdenum Carbide's main supplier
Tech Co., Ltd. () is a professional carbide powder Over 12 years' experience in chemical products development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
You can find high-quality powdered boron carbide here Please contact us Send an inquiry




Blog

Hexagonal Boron Nitride As a Lubricant Additive

Hexagonal boron nitride is a material that is used as a lubricant additive. This substance has good lubricating properties and is highly effective. The boron nitride powder can be used as a filler or mixed with a binder.

It has a low friction coefficient and excellent thermal conductivity. It also has high load-bearing and anti-wear properties. In addition, it is relatively stable to organic solvents and can easily be machinable. Moreover, it does not react with other ingredients.

Several researches have been carried out to study its properties. Particle size, morphology, and particle distribution are the key features. These factors determine its effectiveness as a lubricant additive.

The lubricant has better tribological properties than conventional base oils. Moreover, it can completely impregnate the surface when it is applied. Nevertheless, the particle suspension is unstable.

To understand the mechanism of interaction of hexagonal boron nitride particles with rubbing surfaces, researchers performed reciprocal pin-plate tribological tests under dry conditions. Additionally, the film formation of lubricant was studied using scanning electron microscopy.

The effects of the different types of h-BN on the tribological properties were analyzed. Different concentrations of hBN nanoparticle-based nanofluids were tested. Various ultraviolet-visible spectroscopy analyses were also conducted.

Compared to larger particles, the hexagonal boron nitride nanoparticles have a better tribological system. The results of the wear test showed that the particles exhibited better anti-wear properties.

Various researches have been carried out to identify the best method to produce the lubricant. Researches have focused on environmentally friendly materials.


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