What is Hafnium Diboride HfB2 Powder?
Russian president demanded that exports of Russian gas to "unfriendly" countries be settled in rubles. The demand has raised concerns in Germany about possible supply disruptions and the impact on industry and households if utilities do not pay in robles. Europe gets about 40% of its gas from Russia. Last year, Europe imported about 155 billion cubic meters. Germany, Europe's largest economy, depends heavily on Russian gas.
The chief executive of Germany's E.ON said the German economy would face "significant damage, which should be avoided if possible" without Russian supplies. He also said it would take Germany three years to wean itself off Russian gas.
In the event of a supply disruption, Germany's gas network regulator would prioritize home heating over industrial use, so energy-hungry manufacturers such as steelmakers would be the first to suffer, he said.
The volatile international situations will continue to affect the markets and prices of many commodities like the HfB2 Powder.
Introduction to Hafnium Diboride HfB2 Powder
Hafnium diboride or HfB2 belongs to ultra-high temperature ceramics and is a ceramic composed of hafnium and boron.
Physicochemical Properties of Hafnium Diboride HfB2 Powder
HfB2 has a melting temperature of about 3,250 °C. It is an unusual ceramic with relatively high thermal and electrical conductivity, sharing the same properties as titanium and zirconium diboride of the same structure. It is a gray metal appearance material. Hafnium diboride has a hexagonal crystal structure with a molar mass of 200.11g/mol and a density of about 10.5g/cm3.
Hafnium diboride is usually combined with carbon, boron, silicon, silicon carbide, and nickel to improve the consolidation (sintering) of hafnium diboride powders. It usually forms a solid through a process called hot pressing, in which heat and pressure are used to press the powder together.
|Hafnium Diboride HfB2 Powder Properties
||hafnium boride, HfB2 powder
|Solubility in H2O
Hafnium Diboride HfB2 Powder CAS 12007-23-7
Applications of Hafnium Diboride HfB2 Powder
Due to its strength and thermal properties, hafnium diboride has potential for use in ultra-high-speed reentry aircraft, such as heat shields for intercontinental ballistic missiles or aerodynamic fronts. Unlike polymers and composites, HfB2 forms aerodynamic shapes and does not melt during reentry.
Hafnium diboride is also being studied as a possible new material for nuclear reactor control rods. It is also being studied as a diffusion barrier for microchips. If the synthesis is correct, the barrier thickness can be less than 7 nm.
Boron (atomic symbol: B, atomic number: 5) is a p-block element of group 13 of Period 2, with an atomic weight of 10.81. Each boron layer has 2,3 electrons, and its electron configuration is [He] 2s2, 2p1. The boron atom has a radius of 90pm, and the van der Waals radius is 192pm.
Boron is classified as a metal-like substance that does not naturally occur on Earth. The element boron, along with carbon and nitrogen, is one of the few elements in the periodic table known to form stable triple bond compounds. The bandgap of boron ranges from 1.50 to 1.56 eV, which is higher than that of silicon and germanium.
Hafnium (atomic symbol Hf, atomic number 72) is an element of unit D, group 4, of Period 6, with an atomic weight of 178.49. Bohr model of hafnium the number of electrons in each layer of hafnium is 2,8,18,32,10,2 and the electron configuration is [Xe] 4f14 5d2 6s2. The hafnium atom has a radius of 159pm and the van der Waals radius is 212pm.
Hafnium was predicted by Dmitri Mendeleev in 1869, but was not isolated for the first time until 1922. In its elemental form, hafnium has a lustrous silver-gray appearance. The element hafnium does not exist in nature as a free element. It is found in zirconium compounds such as zircon. Hafnium is commonly a component of superalloys and circuits used in semiconductor device manufacturing.
Hafnium Diboride HfB2 Powder Price
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Researchers at the Centre for Translational Atomic Materials at Swinburne University of Technology, Melbourne, Australia have developed a new graphene film that absorbs more than 90% of sunlight while eliminating most of the infrared thermal emission losses, a highly efficient A solar-heated metamaterial capable of rapidly heating to 83 degrees Celsius (181 degrees Fahrenheit) in an open environment with minimal heat loss. Proposed applications for the film include thermal energy harvesting and storage, solar thermal power generation, and seawater desalination.
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