Gazprom recently said it had completely suspended gas supplies to Bulgarian Gas company and Polish Oil and Gas Company (PGNiG) because it was not being paid in rubles. Russia said it would resume gas supplies after it agreed to pay for them in rubles.
Bulgaria and Poland announced Monday that they have received a notice from Russia to suspend natural gas supplies from Monday.
Russian President Vladimir Putin on March 31 signed a presidential decree to settle gas trade with "unfriendly" countries and regions in rubles. When the new rules took effect on April 1, Presidential press secretary Dmitry Peskov said Russia would not immediately "cut off gas" to Europe, as the cost of gas supplies starting April 1 should be settled in the second half of April or May.
Because of the ever-changing international situation, the supply and prices of international bulk Aluminum Nitride,AlN are still very uncertain.
What is Aluminum Nitride
Aluminum nitride, covalent bond compound, chemical formula is AIN, is an atomic crystal, belongs to diamond-like nitride, hexagonal system, wurtzite crystal structure, non-toxic, white or off-white.
AlN is stable up to 2200°C. The strength at room temperature is high, and the strength decreases slowly with the increase of temperature. Good thermal conductivity, small thermal expansion coefficient, is a good thermal shock material. It has strong corrosion resistance to molten metal, and is an ideal crucible material for casting pure iron, aluminum or aluminum alloy. Aluminum nitride is also an electrical insulator with good dielectric properties and is also promising as an electrical component. The aluminum nitride coating on the gallium arsenide surface protects it from ion implantation during annealing. Aluminum nitride is also a catalyst for the conversion of hexagonal boron nitride to cubic boron nitride.
Where is Aluminium nitride used?
Due to the properties of the piezoelectric effect of aluminum nitride, epitaxial stretching of aluminum nitride crystals is also used for surface acoustic wave detectors. The detectors are placed on silicon wafers. There are very few places where these thin films can be produced reliably.
Aluminum nitride ceramics have the characteristics of high room temperature and high temperature strength, small expansion coefficient and good thermal conductivity, and can be used as heat exchanger materials for high temperature structural parts.
Using aluminum nitride ceramics to resist the corrosion properties of iron, aluminum and other metals and alloys, it can be used as crucible and casting mold materials for smelting Al, Cu, Ag, Pb and other metals.
AlN is mainly used in the microelectronics industry as an electrically insulating but thermally conductive barrier in silicon-based electronic devices. Given its deep ultraviolet bandgap, there is interest in high-quality AlN structures that can be used as light-emitting diodes (LEDs) or lasers to generate ultraviolet light.
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The Free Trade Agreement between India and the United Arab Emirates (UAE) has come into force on.
The UAE is the gateway to the Middle East, North Africa, Central Asia, and sub-Saharan Africa, said Subramaniam, a senior official at India's Ministry of Commerce and Industry. The agreement will help boost bilateral trade in goods from $60 billion a year now to $100 billion a year within five years.
On 18 February 2022, India and the United Arab Emirates signed the Comprehensive Economic Partnership Agreement. With the entry into force of the agreement, 90 percent of Indian goods and 65 percent of UAE goods will enjoy tariff-free market access.
Apart from its FTA with the UAE, India is also pursuing FTAs with Australia, the UK, Canada, Israel, the European Union, and the Gulf Cooperation Council.
Influenced by international situations, the supply and prices of many Aluminum Nitride,AlN are still very uncertain.
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