Physics turned the microwave plasma generator

Since the school is known, that the substance has 3 main aggregate states - solid, liquid and gaseous. But few people remember that there are some others. For example, the plasma state. Get it not so easy, however, a group of amateur physicists turned the most ordinary microwave oven available in the plasma generator.

Physics turned the microwave plasma generator

As is known, the actions of the microwave oven is based on the principle of electromagnetic field exposure on the molecule. Under normal conditions, the density of molecules in the material is very high, which causes them to vibrations, causing objects placed in the magnetic field heat. The particles can not collect the necessary amount of energy in order to "accelerate" and go into the plasma state. However, if not to use the solid and the gas at the desired concentration, then the distance between the molecules is greater, which increases the chances of obtaining the plasma.

That is what scientists and used in their work. They took the sealed container with the oxygen content of which has been accurately calculated. Besides it has been calculated and the optimal pressure within the vessel so that the gas oscillations do not break it. When placing the container in the microwave, it takes several minutes to switch the gas into a plasma state, and the vessel begins to glow. According to physics, the resulting plasma can be used to examine and modify the properties of various substances. As an example, they have demonstrated a hydrophilic (i.e., absorb moisture) polydimethylsiloxane polymer. After a few seconds, "swimming" in the plasma polymer properties changed to the opposite - it has become hydrophobic (ie, moisture repellent). In addition, the authors believe that using "plasma out of the microwave," you can change the electrical conductivity, and other properties of various substances.