Brazil, the world's largest coffee bean producer, recently announced that it is facing the worst drought in 91 years, affecting local hydropower generation and agricultural production, causing the prices of related crops to soar, and coffee bean futures soaring to a nearly four-and-a-half-year high. News of the drought in Brazil quickly pushed up coffee futures. Prices of Arabica beans, favored by boutique cafes and premium brands, continued to rise, hitting their highest level in nearly seven years. Brazil is the world's largest coffee producer and its coffee production is critical to global supply. Analysts expect Brazil’s next year’s coffee bean harvest to fall by 5% to 10%, or even more, over the next two years, and the price increase brought about by the cut is a foregone conclusion.
Like coffee beans, the price of Silicon Boride Powder keeps going up.
Introduction to Silicon Boride Powder
Silicon Boride (also known as boron silicide) is a lightweight ceramic compound made up of silicon and boron. There are silicon triboride, silicon tetraboride, silicon hexaboride, and so on.
Silicon hexaboride or hexaboron silicide is a glossy black gray powder. The chemical formula is SiB6. The molecular weight is 92.95. The relative density is 2.47 g/cm3, the melting point is 2200℃. The hardness is between diamond and ruby. Silicon hexaboride can conduct electricity. It is insoluble in water. When heated in chlorine and water vapor, the surface can be oxidized.
Physicochemical Properties of Silicon Boride Powder
The SiB6 crystal structure consists of interconnected icosahedrons (polyhedrons with 20 faces), icosahedrons (polyhedrons with 26 faces), and isolated silicon and boron atoms.
It is insoluble in water and resistant to oxidation, thermal shock, and chemical erosion. Especially under thermal shock, it has high strength and stability. The grinding efficiency is higher than boron carbide.
Surface oxidation occurs when SiB6 is heated in air or oxygen and is eroded at high temperatures by boiling sulfuric acid and fluorine, chlorine, and bromine. Borides are electrically conductive. Hexamborides have a low thermal expansion coefficient and high thermal neutron cross-section.
|Silicon Boride Powder Properties|
|Other Names||silicon hexaboride, SiB6 powder|
|Appearance||dark grey to black powder|
|Solubility in H2O||insoluble|
Preparation Methods of Silicon Boride Powder
The mixture of boron and silicon can be heated directly, the excess silicon can be removed with HF and HNO3, and the B3Si in the mixture can be decomposed with molten KOH.
Applications of Silicon Boride Powder
1 Used as various standard abrasives and grinding cemented carbide;
2 used as engineering ceramic material, sandblasting nozzle, manufacturing gas engine blade, and other special-shaped sintering parts and seals.
3. Used as an oxidant for refractories.
Main Supplier of Silicon Boride Powder
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc.
If you are looking for high-quality Silicon Boride Powder, please feel free to contact us and send an inquiry. ([email protected])
In 2021, Russia's palladium, nickel and aluminum exports will account for 24.6%, 21.9% and 9.9% of the global total, respectively. Russia exported 2.819 million tons of palladium, accounting for 43.37% of global production. Platinum exports amounted to 962,000 tons, accounting for 15.01% of global production. Russia controls 10 per cent of the world's copper reserves. Russia and Ukraine are also important producers and exporters of neon gas. Markets were volatile after the russia-Ukraine conflict. The London Metal Exchange (LME) nickel, aluminum and copper prices rose 75.3 percent, 28.3 percent and 4.9 percent respectively from the end of last year, thus driving up costs for downstream companies such as electronics, auto parts, military and aerospace. If you are looking for a Silicon Boride Powder with low price fluctuation range and excellent quality, click here will be a good choice.
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