From April the French government will reduce fuel taxes slightly to ease the burden on consumers.
Warned of possible energy shortages in France by the end of the year and called on the French to conserve electricity and gas from now on, saying that if nothing was done, The energy situation will be tough this winter. Some experts say that there are two main reasons for France's energy crisis: first, the conflict between Russia and Ukraine affected the gas market and caused supply tension; The second is a safety review of France's newest nuclear power plant, which may lead to a reduction in output this year. In order to alleviate the energy crisis, the whole French society needs to be mobilized, whether it is the industrial sector, the tertiary sector or every French citizen. Now it is urgent. Rising fuel prices may also have an impact on shipments of the boron nitride.
Overview of Boron nitride
Boron nitride with the chemical formula BN is a thermally and chemically resistant refractory compound of boron and nitrogen. It exists in various crystalline forms that are isoelectronic to a similarly structured carbon lattice. The hexagonal form corresponding to graphite is the most stable and soft among BN polymorphs and is therefore used as a lubricant and an additive to cosmetic products.
Boron nitride is a white solid material in the as-produced hot pressed form. It is a low porosity solid. It is easily machined into complex shapes using standard carbide tooling. The material is anisotropic in its electrical and mechanical properties due to the platy hexagonal crystals and their orientation during the hot press consolidation.
Boron nitride is often referred to as “white graphite” because it is a lubricious material with the same platy hexagonal structure as carbon graphite. Unlike graphite, BN is a very good electrical insulator. It offers very high thermal conductivity and good thermal shock resistance. BN is stable in inert and reducing atmospheres up to 2000°C, and in oxidizing atmospheres to 850°C.
Applications of Boron nitride
Because of its excellent thermal and chemical stability, boron nitride ceramics are traditionally used as parts of high-temperature equipment. BN can be included in ceramics, alloys, resins, plastics, rubbers, and other materials, giving them self-lubricating properties.
Lubricant
Hexagonal boron nitride is used as a lubricant for paint, cosmetics, pencil lead and dental cement. Even in the absence of gas or water molecules in the compound layer, it has lubricity, making it a good component of the vacuum system. Compared with graphite, boron nitride has better chemical stability and conductivity.
Equipment in high-temperature environment
Its excellent heat resistance allows the compound to be used in a variety of applications involving extremely high temperatures. Hexagonal boron nitride is used to improve the lubricating properties of rubber, plastics, alloys and ceramics.
For plastics, the inclusion of BN components can reduce thermal expansion. It can also be integrated into semiconductor substrates and microwave oven windows.
Boron nitride is an effective ingredient in reaction vessels and crucibles due to its thermochemical properties.
Semiconductor industry
The bandgap of boron nitride ranges from 4.5 to 6.4 eV, making it an excellent wide gap semiconductor material. Its inherent thermal and dielectric properties make it a suitable substrate for the development of metal oxide semiconductor field-effect transistors (MOSFET) and semiconductors.
Grinding and cutting tools
Due to the physical properties of cubic boron nitride, this polymorph is used as an abrasive for nickel, iron and certain alloys, while diamond is considered inappropriate (for example, at high temperatures). Its cubic BN form is incorporated into cutting tools and grinding equipment.
Boron nitride Price
Boron nitride price will vary randomly with the production cost, transportation cost, international situation, exchange rate, and market supply and demand of boron nitride. Tanki New Materials Co.,Ltd Aims to help All industries and Chemical Wholesalers to find high quality, cheap price Nanomaterials and chemicals by providing turn-key customize manufacturing services. If you are looking for boron nitride, please feel free to send an inquiry for the latest price.
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As a global boron nitride supplier, Tanki New Materials Co.,Ltd has rich experiences in the properties, applications, and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metal, etc.), high-purity targets, functional ceramics, and structural devices, OEM service is available.
More information about Boron nitride
Properties and Information on Boron Nitride
Property | Minimum Value (S.I.) | Maximum Value (S.I.) | Units (S.I.) | Minimum Value (Imp.) | Maximum Value (Imp.) | Units (Imp.) | |
Atomic Volume (average) | 0.0043 | 0.0045 | m3/kmol | 262.402 | 274.607 | in3/kmol | |
Density | 1.9 | 2.3 | Mg/m3 | 118.613 | 143.584 | lb/ft3 | |
Energy Content | 200 | 300 | MJ/kg | 21667.7 | 32501.6 | kcal/lb | |
Bulk Modulus | 12.5 | 65.7 | GPa | 1.81297 | 9.52897 | 106 psi | |
Compressive Strength | 225 | 540 | MPa | 32.6335 | 78.3204 | ksi | |
Ductility | 0.00037 | 0.004 | 0.00037 | 0.004 | NULL | ||
Elastic Limit | 27 | 83.3 | MPa | 3.91602 | 12.0816 | ksi | |
Endurance Limit | 23 | 64 | MPa | 3.33587 | 9.28241 | ksi | |
Fracture Toughness | 2.5 | 5 | MPa.m1/2 | 2.27512 | 4.55023 | ksi.in1/2 | |
Hardness | 660 | 3000 | MPa | 95.725 | 435.113 | ksi | |
Loss Coefficient | 1e-005 | 3e-005 | 1e-005 | 3e-005 | NULL | ||
Modulus of Rupture | 33 | 110 | MPa | 4.78625 | 15.9542 | ksi | |
Poisson's Ratio | 0.21 | 0.27 | 0.21 | 0.27 | NULL | ||
Shear Modulus | 7.8 | 41.3 | GPa | 1.13129 | 5.99006 | 106 psi | |
Tensile Strength | 27 | 83.3 | MPa | 3.91602 | 12.0816 | ksi | |
Young's Modulus | 19.5 | 100 | GPa | 2.82823 | 14.5038 | 106 psi | |
Glass Temperature | K | °F | |||||
Latent Heat of Fusion | 1440 | 1800 | kJ/kg | 619.085 | 773.857 | BTU/lb | |
Maximum Service Temperature | 1440 | 1990 | K | 2132.33 | 3122.33 | °F | |
Melting Point | 3150 | 3400 | K | 5210.33 | 5660.33 | °F | |
Minimum Service Temperature | 0 | 0 | K | -459.67 | -459.67 | °F | |
Specific Heat | 770 | 1150 | J/kg.K | 0.595871 | 0.889937 | BTU/lb.F | |
Thermal Conductivity | 19 | 52 | W/m.K | 35.5686 | 97.3457 | BTU.ft/h.ft2.F | |
Thermal Expansion | 1 | 6 | 10-6/K | 1.8 | 10.8 | 10-6/°F | |
Breakdown Potential | 35 | 45 | MV/m | 889 | 1143 | V/mil | |
Dielectric Constant | 3.9 | 4.3 | 3.9 | 4.3 | NULL | ||
Resistivity | 1e+018 | 1e+021 | 10-8 ohm.m | 1e+018 | 1e+021 | 10-8 ohm.m |
Environmental Properties of Boron Nitride
Resistance Factors | |
Flammability | 5 |
Fresh Water | 5 |
Organic Solvents | 5 |
Oxidation at 500C | 5 |
Sea Water | 5 |
Strong Acid | 4 |
Strong Alkalis | 5 |
UV | 5 |
Wear | 5 |
Weak Acid | 5 |
Weak Alkalis | 5 |
Typical properties for hexagonal and cubic boron nitride
Property | h-BN | C-BN |
Density (g.cm-3) | 2.3 | 2.2 |
Melting Point (°C) | 3000 (dissociates) | |
Hardness (Knoop 100 g) (kg.mm-1) | 400 | |
Modulus of Rupture (MPa) | 100 (ll to press dir) | 110 |
Youngs Modulus (MPa) | 20 - 103 | |
Thermal Expansion Co-eff (RT-1000 °C - x10-6) (°C-1) | 1 (ll to press dir) | 3.8 |
Thermal Conductivity (W/m.K) | 20 (ll to press dir) | |
Dielectric Breakdown Strength (kV.mm-1) | 35 | |
Dielectric Constant | 4.1 | |
Vol Resistivity (ohm.cm) | 108 - 1013 |
Cancer cells can "stretch out a big hand" and take away the mitochondria of immune cells. The Harvard Medical School research team cultured mouse and human breast cancer cells and immune cells, such as killer T cells, and used field emission scanning electron microscopy (FESEM) to observe the relationship between cancer cells and immune cells. interactive. Interestingly, they found that cancer cells stick out long nanotubes, typically within 100-1000 nanometers in diameter, each of which connects to multiple immune cells along the way. The researchers used the drug L-778123, which inhibits the formation of nanotubes, for treatment. The higher the concentration of L-778123, the better the treatment effect.
Product name are used in various high-tech fields, so the market demand for boron nitride will continue to rise. We are a quality supplier of boron nitride, please feel free to contact us.
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