What are different types of physical vapor deposition?

Germany is heavily dependent on Russia for natural gas. The head of the Federal Network Agency, Germany's energy regulator, said recently that once supply from Russia stops completely, even if Germany will fill its underground natural gas storage facilities to 95% of its total capacity by November, Germany's natural gas reserves are only enough for heating and industrial facilities to operate for about two months to two and a half months. He pointed out that Germany is currently accelerating the hoarding of natural gas in preparation for winter, and the gas storage should be filled to 85% by October. At present, the "Beixi-1" natural gas pipeline that carries natural gas from Russia to Germany is only 20% of its maximum capacity. In order to alleviate the energy shortage, German officials have repeatedly called on people to reduce the use of natural gas before the beginning of winter.

Recently, the Fed released the minutes of the Federal Open Market Committee (FOMC) meeting in July, according to the minutes, the Fed is likely to slow the rate of increase, and the target range of the federal funds rate will remain between 2.25% and 2.5%.

Because of the turbulent international situation, the supply and prices of many international bulk nanomaterial are still very uncertain.

PVD (Physical Vapor Deposition) refers to the thin film preparation technology in which the material is deposited on the plated workpiece by a general physical method in vacuum.
 
PVD technology can be divided into three categories: vacuum evaporation coating, vacuum sputtering coating and vacuum ion coating. Compared with the three categories of PVD technology, the corresponding vacuum coating equipment includes vacuum evaporation coating machine, vacuum sputtering coating machine and vacuum ion coating machine.
 
The principle of PVD coating technology is that under the condition of vacuum, through the arc discharge technology with high current, the target material is evaporated and the evaporated material is ionized by gas discharge, and the evaporated material or its reaction products are deposited on the workpiece under the action of electric field.
 
Magnetron sputtering coating is to increase the electric field between the target and the vacuum chamber wall to ionize the argon gas and accelerate the argon ion to hit the surface of the target. The target is hit by subions, while the target atoms overflow and fly to the surface of the plated substrate with kinetic energy of tens or even hundreds of electron volts and deposited on the substrate surface, and the atomic kinetic energy is two orders of magnitude higher than evaporation. Its filling density is as high as 98%, and the refractive index is high and relatively stable.
 
The similarity between PVD coating and traditional electroless plating is that one material is covered on the surface of another material in a certain way. The difference between the two is that the adhesion between the PVD film and the workpiece surface is greater, the hardness of the film is higher, the wear resistance and corrosion resistance are better, and the performance of the film is more stable; PVD coating can be plated more widely, can be plated out of a variety of film color is also more, and will not produce toxic or polluting substances.
 
The sputtering coating process has the characteristics of repeatability and controllable thickness, which is reflected in the large area substrate material, and we can make the ideal material according to the required thickness. the prepared film also has the advantages of high purity, good compactness and strong adhesion with materials. From the point of view of the manufacturing process, the manufacturing complexity of evaporation coating is lower than that of sputtering target, and its advantages are simple and convenient process, convenient operation, fast film formation and so on.
 
PVD vacuum coating is also widely used in the plastic industry, because the plastic has the characteristics of easy molding, so its cost is very low, the weight is also very light, and it has the characteristics of corrosion resistance. The surface of the plastic can be conductive by PVD vacuum coating, and the PVD coating can also reduce its water absorption. After the coating is completed, the pinholes will decrease, and the water absorption will also decrease. The metal luster on the surface of the coated material is colored, and the decorative performance is also greatly improved.
 
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Gas prices in European countries are expected to triple if Russian supplies are restricted, according to a press release from Rystad Energy, a Norwegian Energy consultancy.  

The price of natural gas in Europe was $1,200 per 1,000 cubic meters on Tuesday. The benchmark price is already 300 percent higher than a year ago. European gas prices are expected to continue to soar to $3,500 per 1,000 cubic meters if Russian supplies are restricted, according to Analysis by Monitor.

In 2021, Russia delivered 155 billion cubic meters of gas to Europe, accounting for 31 percent of its gas supply, according to an analysis by Monitor Advisors. It would be difficult for Europe to replace Russian gas, which would also destabilize the global LNG market and have a profound impact on Europe's population and economy.

The analysis also said that if Russia stopped supplies now, Europe's current gas reserves would be exhausted by the end of the year, setting in for a cold winter.

In addition, affected by the geopolitical factors, the supply of the nanomaterial is erratic and thus its prices are expected to go higher in the future.

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