The European Commission has submitted to member states a new draft of sanctions against Russia, including an oil embargo. Some member states that rely heavily on Russian energy sought exemptions.
Western media reported that the European Commission draft of the sixth round of sanctions against Russia includes within six to eight months gradually banning oil imports from Russia, but allowing Hungary and Slovakia to extend the transition period for several months; The Russian Savings bank and other large financial institutions on the sanctions list.
The European Union has imported 44 billion euros of fossil fuels from Russia since Russia launched its special military operation against Ukraine in late February, according to Finland's Energy and Clean Air Research Center.
The Institute for European and Global Economics in Brussels estimates that the European Union currently consumes about $450 million worth of Russian oil a day.
Among EU members, landlocked Hungary and Slovakia, which import most of their oil from Russia, cannot quickly find alternative supplies. Slovakia says the transition will take years. Some officials believe Bulgaria and the Czech Republic may also seek to opt out of oil sanctions against Russia.
Affected by the ever-changing international situation, the supply and prices of international bulk tungsten silicide, tungsten silicide overview, tungsten silicide application, tungsten silicide suppliers, tungsten silicide price are still very uncertain.
Overview of tungsten silicide WSi2 powder
Tungsten silicide are used as contact materials in microelectronics and have a resistivity of 60-80 μΩcm. It forms 1000°C. It is often used as a shunt for polysilicon wires to increase their conductivity and increase signal speed. The silicide layer can be prepared by chemical vapor deposition, for example, using monosilane or dichlorosilane and tungsten hexafluoride as raw material gases. The deposited films are non-stoichiometric and require annealing to convert to a more final stoichiometric form. Tungsten silicide can replace earlier tungsten films. Tungsten silicide can also be used in MEMS and anti-oxidation coatings.
Tungsten Silicide Properties
Blue-gray tetragonal crystal, melting point>900℃, compound Tungsten Silicide (WSi2)
Preparation method of tungsten silicide
(1) Mix tungsten powder and silicon powder in a molar ratio of 1:2, and mix titanium powder and graphite powder in a molar ratio of 1:1, and then mix them evenly.
(2) The W-Si mixed powder is placed in the center of the crucible, and the Ti-C mixed powder is evenly placed between the W-Si mixed powder and the crucible. Finally, a layer of Ti-C mixed powder is placed on top of all the mixed powders. The weight ratio of the loaded Ti-C mixed powder and W-Si mixed powder is (0.8~1.2): 1
(3) Put the crucible containing the mixed powder into a closed reactor, fill it with argon after vacuuming, and then energize the mixture with tungsten wire to initiate the reaction between the mixed materials.
(4) After cooling, take out the reacted material, separate titanium carbide and tungsten disilicide, and crush them respectively to obtain titanium carbide and tungsten disilicide powder.
Application of tungsten silicide WSi2 powder
Tungsten silicide WSi2 powder is used in microelectronics as electrical shock material, shunting on polysilicon wires, anti-oxidation coatings and resistance wire coatings. Tungsten silicide is used as a contact material in microelectronics with a resistivity of 60-80 μΩcm. It forms at 1000°C. It is often used as a shunt for polysilicon wires to increase their conductivity and increase signal speed. The tungsten silicide layer can be prepared by chemical vapor deposition, such as vapor deposition. Monosilane or dichlorosilane and tungsten hexafluoride are used as raw material gases. The deposited films are non-stoichiometric and require annealing to convert to a more conductive stoichiometric form.
Tungsten silicide can replace earlier tungsten films. Tungsten silicide also acts as a barrier between silicon and other metals.
Tungsten silicide is also valuable in microelectromechanical systems, where tungsten silicide is primarily used as a thin film for making microcircuits. For this purpose, the tungsten silicide film may be plasma etched using, for example, silicide.
Tungsten silicide WSi2 powder price
The price of tungsten silicide WSi2 powder will vary randomly with the production cost of tungsten silicide WSi2 powder, transportation cost, international situation of tungsten silicide WSi2 powder, exchange rate and market supply and demand of tungsten silicide WSi2 powder. Tanki New Materials Co., Ltd. aims to help 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 tungsten silicide WSi2 powder, please feel free to send an inquiry to get the latest price of tungsten silicide WSi2 powder.
Tungsten Silicide WSi2 Powder Supplier
As a global supplier of tungsten silicide WSi2 powder, Tanki New Materials 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, titanium silicide, calcium silicide, iron boride), high-purity target materials, functional ceramics and structural devices, and provides OEM services.
|Tungsten Silicide Properties|
|Other Names||tungsten disilicide, WSi2 powder|
|Appearance||Gray Black Powder|
|Solubility in H2O||N/A|
|Tungsten Silicide Health & Safety Information|
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