The African Development Bank will finance $25 billion by 2025 to support Africa's fight against climate change, the bank's president said at the bank's annual meeting in Accra, Ghana.
He noted that climate change has had many negative impacts on the continent, causing natural disasters such as droughts, cyclones, and floods. Climate change costs Africa between $7 billion and $15 billion a year. "Africa has no choice but to address climate change."
To ensure Africa's food supply, the African Development Bank has delivered climate-friendly seeds to 12 million farmers in 27 countries in the past two years under the "Technology for Agricultural Change in Africa" program, he said.
In the area of renewable energy, the African Development Bank is implementing a $20 billion "Desert Power" initiative in the Sahel that is expected to power 250 million people, he said.
US President Joe Biden recently wrapped up his five-day trip to Asia with a summit of leaders of the "Quad" security Dialogue.
Biden has promoted a number of economic and security cooperation initiatives during his visit aimed at deepening ties with Indo-Pacific Allies and partners in response to China's growing influence in the region. Some analysts in the United States believe the most significant announcement may be an initiative to share maritime information to combat illegal activities. But other experts say Biden's move sets a good framework for more security cooperation, though it remains to be seen whether concrete action will follow.
Affected by several factors, the supply of the Vanadium Nitride VN, Vanadium Nitride VN Overview, Vanadium Nitride VN Application, Vanadium Nitride VN Supplier, Vanadium Nitride VN Price is erratic and thus its prices are expected to go higher in the future.
Overview of vanadium nitride VN powder
Vanadium nitride is formed during the nitriding process of steel and increases wear resistance. During the nitridation process, another phase V2N (also known as vanadium nitride) can be formed together with VN. VN has a cubic rock salt structure. There is also a low-temperature form, which contains the V4 cluster. The low temperature phase is caused by dynamic instability when the vibrational mode energy in the high temperature NaCl structural phase drops below zero.
Vanadium nitride is a strongly coupled superconductor. Nanocrystalline vanadium nitride is said to have potential for use in supercapacitors. The properties of vanadium nitride are sensitively dependent on the stoichiometry of the material.
How is vanadium nitride VN powder produced?
The samples made of ammonium metavanadate powder and carbon powder were pre-reduced in a heating furnace, followed by final reduction. After the final reduction is completed, the sample is cooled with the furnace, and the obtained sample is vanadium nitride; in the process, the temperature in the heating furnace is 650-670° C., and the holding time of the heating furnace is 2-4 hours. Under the conditions of this temperature and holding time, the surface of the sample can be prevented from melting and hindering the reduction reaction.
After pre-reduction, the main reduction product of the sample is V2O3, and the rest are carbides and a small amount of VN; in the final reduction process, the sample is kept at 1300-1500 °C. CO gas and CO gas are generated during the insulation process. The introduced nitrogen gas is taken away, and VN is obtained after the insulation is completed; the nitrogen flow rate during the reaction is 210-270 mL/min, which can not only meet the kinetic conditions of the reduction reaction, but also prevent the reaction temperature caused by too much nitrogen. reduce and waste nitrogen;
Application of vanadium nitride VN powder
Vanadium nitride has high wear resistance, which can greatly improve vanadium steel after nitriding.
The comprehensive mechanical properties of high-strength steel, such as strength, toughness, ductility, and thermal fatigue resistance, endow the steel with good weldability. In the case of achieving the same strength, adding vanadium nitride can save 20-40% of the vanadium addition, thereby reducing the cost.
Vanadium-nitrogen alloys can be used in structural steel, tool steel, tubular steel, rebar and cast iron. Vanadium Nitride Alloys for High Strength Low Alloy Steels
Vanadium nitride can carry out effective vanadium-nitrogen microalloying at the same time, promote the precipitation of carbon, vanadium and nitrogen compounds in steel, and play a more effective role in strengthening sedimentation and refinement.
Adding vanadium nitride to steel can improve the comprehensive mechanical properties of steel such as strength, toughness, ductility and thermal fatigue resistance, so that the steel has good weldability.
In the case of achieving the same strength, adding vanadium nitride can save 30-40% of the vanadium addition, thereby reducing the cost. Vanadium-nitrogen alloys can be used in structural steel, tool steel, tubular steel, rebar and cast iron.
The vanadium-nitrogen alloy used for high-strength low-alloy steel can simultaneously carry out effective vanadium-nitrogen microalloying, promote the precipitation of carbon, vanadium and nitrogen compounds in the steel, and play a more effective role in sedimentation strengthening and graining. refinement.
Vanadium nitride VN powder price
The price of vanadium nitride VN powder will change randomly with the production cost, transportation cost, international situation, exchange rate, market supply and demand and other factors of vanadium nitride VN powder. Tanki New Materials Co.,Ltd aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for vanadium nitride VN powder, please feel free to send an inquiry to get the latest price of vanadium nitride VN powder.
Vanadium nitride VN powder suppliers
As a global vanadium nitride VN powder supplier, Tanki New Materials Co.,Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (molybdenum disilicide, lanthanum nitride (LaN powder, calcium silicide, iron boride), high-purity targets, functional ceramics and structural devices, and provides OEM services.
|Technical Parameter of Vanadium Nitride VN powder:|
|Product Name||MF||Purity||Particle Size||Specific Surface Area||Volume Density||Color|
|Chemical Composition of Vanadium Nitride VN powder:|
|Vanadium Nitride VN Powder Properties|
|Other Names||Vanadium nitride, Vanadium(III) nitride, VN powder|
|Solubility in water||N/A|
|Vanadium Nitride VN Powder Health & Safety Information|
Since the beginning of this year, China's macro policies have made continuous efforts to stabilize economic growth. America and Europe are raising interest rates to control inflation. On March the European Central Bank left its three key interest rates unchanged and began to scale back its asset-purchase programme. Then the Federal Reserve raised the target range of the federal funds rate by 25 basis points to 0.25%-0.5%. The accelerated tightening of monetary policies in the US and Europe pushed capital back to the US and increased interest rates, which will definitely increase the risk of RMB depreciation and capital outflow. The price and market of the Vanadium Nitride VN, Vanadium Nitride VN Overview, Vanadium Nitride VN Application, Vanadium Nitride VN Supplier, Vanadium Nitride VN Price will also be affected, resulting in a range of fluctuations. You are welcome to contact us for the latest quotation of Vanadium Nitride VN, Vanadium Nitride VN Overview, Vanadium Nitride VN Application, Vanadium Nitride VN Supplier, Vanadium Nitride VN Price.
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