How many do you know about the properties and applications of boron nitride
Gold is a high-quality hedge hedging tool, favored by investors. Especially in recent years, with the increasing instability of the world economy, gold has become one of the preferred asset allocations of investors because of its functions of hedging and fighting inflation.
Earlier, the worsening situation in Ukraine sent gold prices soaring to a two-year high of $2,070 an ounce. But gold, along with other commodities, fell back last week as conditions changed and bulls took profits, hitting a low of $1,895 an ounce. Rising gold prices may also have an impact on the boron nitride prices.
According to China Business News, Goldman Sachs raised its gold price forecast in early March, considering Asian buyers' gold consumption demand, investment demand and central bank gold purchase demand continue to rise. Three -, six - and 12-month targets were raised to $2,300, $2,500 and $2,500 an ounce, respectively, from $1,950, $2,050 and $2,150. The last time all three accelerated was in 2010-11 when gold prices rose nearly 70%.
The World Gold Council has also noted that global gold demand is at its highest level in nearly two years, which is linked to a recovery in consumption and consumer sentiment to combat inflation.
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.
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.
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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More information about Boron nitride
Properties and Information on Boron Nitride
Minimum Value (S.I.)
Maximum Value (S.I.)
Minimum Value (Imp.)
Maximum Value (Imp.)
Atomic Volume (average)
Modulus of Rupture
Latent Heat of Fusion
Maximum Service Temperature
Minimum Service Temperature
Environmental Properties of Boron Nitride
Oxidation at 500C
Typical properties for hexagonal and cubic boron nitride
Melting Point (°C)
Hardness (Knoop 100 g) (kg.mm-1)
Modulus of Rupture (MPa)
100 (ll to press dir)
50 (⊥ to press dir)
Youngs Modulus (MPa)
20 - 103
Thermal Expansion Co-eff (RT-1000 °C - x10-6) (°C-1)
1 (ll to press dir)
4 (⊥ to press dir)
Thermal Conductivity (W/m.K)
20 (ll to press dir)
27 (⊥ to press dir)
Dielectric Breakdown Strength (kV.mm-1)
Vol Resistivity (ohm.cm)
108 - 1013
The United States urges the U.N. Security Council to impose additional sanctions on North Korea in response to its latest ballistic missile launch, including a ban on tobacco and oil exports to North Korea and a blacklist of the Lazarus hacking group.
The United States circulated the draft to the 15 members of the Security Council this week. It was not immediately clear if or when a vote would take place. A resolution requires nine "yes" votes and no vetoes from Russia, China, France, Britain, or the United States.
Russia and China have already voiced opposition to tightening sanctions in response to Pyongyang's launch of an intercontinental ballistic missile last month -- the first since 2017.
U.S. and South Korean officials and analysts also say there are growing indications that North Korea may soon conduct its first nuclear weapons test since 2017, too.
The U.S. -drafted U.N. resolution would expand the ban on ballistic missile launches to include cruise missiles or "any other delivery system capable of delivering a nuclear weapon."
The deal would halve crude oil exports to North Korea to 2 million barrels a year and refined oil exports to 250,000 barrels a year. The resolution also seeks to ban North Korea's export of "fossil fuels, mineral oils, and their distilled boron nitride are estimated to be influenced by international political situation changes.