Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and control is to minimize transmission and fatality rate. Omicron has a low case fatality rate but is highly transmissible and can still claim many lives in large outbreaks. "Total openness is not applicable in China. For China, we should keep to the dynamic zero-out and gradually open up."
However, "dynamic zero clearance" is not the pursuit of complete "zero infection". As the Novel Coronavirus has its own uniqueness and strong concealment, there may be no way to prevent the detection of cases at present, but rapid detection and prompt treatment must be carried out, as soon as one case is found, one case will be dealt with.
The situation in Shanghai is serious. As the financial center of China, Shanghai is a very important city, and the outbreak of the epidemic in Shanghai will put a great impact on China's economy. The current task is to contain the spread of the epidemic as soon as possible, to achieve social zero so that Shanghai's life and economy quickly return to normal.
As China plays an important role in the global supply chain, the outbreak will have a significant impact on the supply and prices of many aluminum boride.
Introduction to Aluminum Diboride AlB2 Powder
Aluminum diboride or Aluminum boride, AlB2 is an inorganic compound with the chemical formula AlB2. It is a binary compound formed by aluminum and boron elements. It is a grey-red solid and insoluble in water at room temperature and pressure. When heated, it loses surface gloss, stabilizes in cold dilute acid, and decomposes in hot hydrochloric and nitric acid.
Aluminum diboride is made by mixing fine powder of aluminum and boron and reacting it with heat. It is one of two compounds of aluminum and boron, the other being AlB12, and they are commonly known as aluminum boride.
Aluminum boride is considered hazardous because it reacts with acid and hydrogen to produce toxic gases. For example, it reacts with hydrochloric acid with borane and aluminum chloride released.
Structures of Aluminum Diboride AlB2
The structure of aluminum boride is similar to that of metal interdides in that its structure depends mainly on the crystal structure of aluminum and boron rather than on their valence relationship. The borides of aluminum are AlB2, AlB4, and AlB12. The diboride AlB2 can be formed by the reaction of two elemental substances above 600℃. It is a layered structure in which Al atoms directly overlap (A, A) and B atoms fill the triangular column formed by the direct overlap of Al atoms, that is, the boron layer is located between the two aluminum layers. The boron layer has a similar structure to graphite. The boron atoms are connected in a hexagonal network. Each B atom is 0.173nm away from the other three B atoms, and six Al atoms are connected to B, which occupy the apex of the triangular column. AlB2 can be dissolved in dilute hydrochloric acid to produce a reductive solution that may contain HB(OH)+3. AlB2 is insoluble in dilute sulfuric acid but soluble in nitric acid. AlB12 was decomposed by AlB2 at 920℃.
|Aluminum Diboride AlB2 Properties|
|Other Names||aluminum boride, aluminum diboride, AIB2|
|Solubility in H2O||insoluble|
The coronavirus (COVID-19) pandemic not only had a significant impact on public health, it also severely affected one of the linchpins of the global economy – the tourism industry. As many countries introduced curfews and travel restrictions to contain the spread of the virus, travel across the world significantly declined from early 2020 onwards. The financial repercussions of the coronavirus have already begun to manifest themselves within the tourism industry. In 2020, global revenue from the travel and tourism industry was estimated to drop from a forecasted 711.94 billion U.S. dollars to 568.6 billion U.S. dollars, representing a decrease of over 20 percent. The region predicted to see the highest decline in revenue was Europe, decreasing from 211.97 billion U.S. dollars in 2019 to roughly 124 billion U.S. dollars in 2020.
Physicochemical Properties and Applications of Aluminum Diboride AlB2 Powder
AlB2 single crystal exhibits metallic conductivity along an axis parallel to the hexagonal base plane. Boron - aluminum composite aluminum or aluminum alloy reinforced with boron fiber or protective coating boron fiber. The volume content of boron fiber is generally about 45%~55%. It has low specific gravity and high mechanical properties. The longitudinal tensile strength and elastic modulus of the unidirectionally reinforced boron-aluminum composite are about 1.2~1.7GPa and 200~240GPa depending on the process and material. The longitudinal specific elastic modulus and specific strengths are about 3~5 times and 3~4 times of titanium alloy duralumin and alloy steel respectively. It has good fatigue performance and high strength under 400℃.
It has been applied to fan blades of turbojet engines and structural parts of aviation, aerospace, and artificial satellites. The hot pressing diffusion bonding method is used to manufacture plate, profile, and more complex shape parts. Continuous casting can also be used to manufacture various profiles.
Aluminum boride can be used in ceramics, medical equipment, nuclear energy, refractory ceramics, and other fields.
Main Supplier of Aluminum Diboride AlB2 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 Aluminum Diboride AlB2 Powder, please feel free to contact us and send an inquiry. ([email protected])
15+ years of experience
Over $50+ million in sales
14+ years of experience
Over $50+ million in sales
About Metal Alloy High Purity Tungsten Crucibles:Chemical composition:…
About Metal Alloy Vacuum Coating Tungsten Melting Pot Tungsten Crucibles:Chemical composition:…